Rhododendron minus 'Mitchell Dam', which has large leaves and stems and has been suspected of being a tetraploid, has been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
No naturally occurring tetraploid Rhododendron minus have been located to date. Rhododendron minus 'Epoch', which was chemically treated to increase the ploidy level, is a tetraploid.
Summary of Ploidy Levels
Diploid Rhododendron minus,
Diploid Rhododendron minus 'Blanchette',
Diploid Rhododendron minus 'Mitchell Dam',
Diploid Rhododendron minus var. chapmanii,
Tetraploid 'Epoch'
Source: John Thornton
John and Sally Perkins
H: Monday, February 28, 2011
H: Sunday, February 27, 2011
'Dame Nellie Melba' is a Triploid
Rhododendron 'Dame Nellie Melba', which is 1926 Sir Edmund Loder hybrid documented as 'Standishii' x R. arboreum ssp arboreum, has been determined to be a triploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Triploid 'Dame Nellie Melba'
Source: John Thornton
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Triploid 'Dame Nellie Melba'
Source: John Thornton
John and Sally Perkins
H: Saturday, February 26, 2011
Rhododendron championiae is a Diploid
Rhododendron championiae has been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron championiae
Source: John Thornton
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron championiae
Source: John Thornton
John and Sally Perkins
H: Friday, February 25, 2011
Reminder: Massachusetts Chapter Meeting @ Sun Feb 27 1:30pm - 3:30pm (ARS Massachusetts Chapter Calendar)
Massachusetts Chapter MeetingMeeting in East Wing Building since the Putnam Building is under repair. Susan DuBrava gives talk on "Hostas
| ||||||||||
Invitation from Google Calendar You are receiving this email at the account john.a.perkins@gmail.com because you are subscribed for reminders on calendar ARS Massachusetts Chapter Calendar. To stop receiving these notifications, please log in to https://www.google.com/calendar/ and change your notification settings for this calendar. |
Rhododendron ovatum is a Diploid
Rhododendron ovatum has been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron ovatum
Source: John Thornton
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron ovatum
Source: John Thornton
John and Sally Perkins
H: Thursday, February 24, 2011
'Point Defiance' Descendant is a Diploid
A seedling of [('Voluptuous' x 'Point Defiance') #1] x ('Gold Medal' x 'Bud's Yellow'), which is a Werner Brack hybrid, has been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Three seedlings were ploidy tested from the Brack cross of 'Voluptuous' x 'Point Defiance'. 'Orange Leopard' and 'Stony Brook' tested as diploid. An unnamed seedling tested as triploid. This indicates that the offspring of a given cross can have different ploidy levels from one offspring to another.
The cross 'Voluptuous' x 'Point Defiance' and the cross [('Voluptuous' x 'Point Defiance') #1] x ('Gold Medal' x 'Bud's Yellow') producing diploid seedlings indicates that descendants of tetraploids can be diploids. 'Point Defiance' is a tetraploid.
When used as a seed parent, 'Horizon Monarch', which tested as a tetraploid using flow cytometry, has produced diploid as a well as tetraploid offspring.
Rhododendron 'Marinus Koster', which was determined to be a tetraploid, is the seed parent of the diploid 'Rendezvous'.
Summary of Ploidy Levels
Diploid 'Orange Leopard',
Diploid 'Rendezvous',
Diploid 'Stony Brook',
Diploid 'Voluptuous',
Diploid [('Voluptuous' x 'Point Defiance') #1] X ('Gold Medal' x 'Bud's Yellow'),
Diploid 3 Seedlings of 'Horizon Monarch' open pollinated,
Triploid Seedling of 'Voluptuous' x 'Point Defiance',
Tetraploid 'Horizon Monarch',
Tetraploid 'Marinus Koster',
Tetraploid 'Point Defiance',
Tetraploid 1 Seedlings of 'Horizon Monarch' open pollinated
Source: Werner Brack
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Three seedlings were ploidy tested from the Brack cross of 'Voluptuous' x 'Point Defiance'. 'Orange Leopard' and 'Stony Brook' tested as diploid. An unnamed seedling tested as triploid. This indicates that the offspring of a given cross can have different ploidy levels from one offspring to another.
The cross 'Voluptuous' x 'Point Defiance' and the cross [('Voluptuous' x 'Point Defiance') #1] x ('Gold Medal' x 'Bud's Yellow') producing diploid seedlings indicates that descendants of tetraploids can be diploids. 'Point Defiance' is a tetraploid.
When used as a seed parent, 'Horizon Monarch', which tested as a tetraploid using flow cytometry, has produced diploid as a well as tetraploid offspring.
Rhododendron 'Marinus Koster', which was determined to be a tetraploid, is the seed parent of the diploid 'Rendezvous'.
Summary of Ploidy Levels
Diploid 'Orange Leopard',
Diploid 'Rendezvous',
Diploid 'Stony Brook',
Diploid 'Voluptuous',
Diploid [('Voluptuous' x 'Point Defiance') #1] X ('Gold Medal' x 'Bud's Yellow'),
Diploid 3 Seedlings of 'Horizon Monarch' open pollinated,
Triploid Seedling of 'Voluptuous' x 'Point Defiance',
Tetraploid 'Horizon Monarch',
Tetraploid 'Marinus Koster',
Tetraploid 'Point Defiance',
Tetraploid 1 Seedlings of 'Horizon Monarch' open pollinated
Source: Werner Brack
John and Sally Perkins
H: Wednesday, February 23, 2011
Sunday Chapter Meeting location
February Chapter Meeting on Sunday February 27 at Elm Bank in the EAST WING at 1:30.
Our meeting location has been moved to the East Wing, as the Putnam Building is still under repair. Park in the main lot and go through the iron gates to the side door to the administration buildidng.
Susan DuBrava will give us a talk on "Hostas - the Funkier the Better." She and her husband Chuck Dowdy (who is grounds supervisor for all of Northeastern University's properties) own Cochato Nursery in Holbrooke, MA. In addition to specializing in hostas, they carry "unique trees and shrubs, native plants, shade perennials, alpine and trough-type plants". The website is www.cochatonursery.com and is being updated as we speak for spring. Hope to see you there.
Susan Clark
Rhododendron reticulatum is a Diploid
Rhododendron reticulatum has been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron reticulatum
Source: Arnold Arboretum Accession Number: 207-87
Source: Joe Bruso
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron reticulatum
Source: Arnold Arboretum Accession Number: 207-87
Source: Joe Bruso
John and Sally Perkins
H: Tuesday, February 22, 2011
Rhododendron albrectii is a Diploid
Rhododendron albrectii has been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron albrectii
Source: George Hibben
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron albrectii
Source: George Hibben
John and Sally Perkins
H: Monday, February 21, 2011
Rhododendron subulatum China is a Diploid
5 plants of Rhododendron subulatum from China growing at the Arnold Arboretum has been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Rhododendron subulatum was formerly classified as subspecies of Ledum palustre.
The 5 plants of Rhododendron subulatum tested as diploid were from northern China.
A Rhododendron tomentosum wild collected from a marsh in Turku Archipelago, Finland tested as tetraploid.
There is a very good chance that this difference in ploidy level is due to misidentification of the plant from China due to the large group of plants formerly included under Ledum palustre and then compounded when the Ledum genus was moved to Rhododendron.
The plant from China is clearly a diploid "Ledum". The origin of the plant tested is well documented. This plant is still growing at the Arnold Arboretum along with 4 of its siblings.
Summary of Ploidy Levels
Diploid Rhododendron columbianum,
Diploid Rhododendron subarticum,
Diploid 5 plants of Rhododendron subulatum China,
Tetraploid Rhododendron diversipilosum,
Tetraploid Rhododendron diversipilosum 'Milky Way',
Tetraploid Rhododendron groenlandicum,
Tetraploid Rhododendron groenlandicum Saco Bog, Maine,
Tetraploid Rhododendron hypoleucum,
Tetraploid Rhododendron neoglandulosum,
Tetraploid Rhododendron tolmachevii,
Tetraploid Rhododendron tomentosum Turku Archipelago
Source: Arnold Arboretum Accession Number: Ledum palustre 389-97-A,B,C,D,E Wild collected in China
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Rhododendron subulatum was formerly classified as subspecies of Ledum palustre.
The 5 plants of Rhododendron subulatum tested as diploid were from northern China.
A Rhododendron tomentosum wild collected from a marsh in Turku Archipelago, Finland tested as tetraploid.
There is a very good chance that this difference in ploidy level is due to misidentification of the plant from China due to the large group of plants formerly included under Ledum palustre and then compounded when the Ledum genus was moved to Rhododendron.
The plant from China is clearly a diploid "Ledum". The origin of the plant tested is well documented. This plant is still growing at the Arnold Arboretum along with 4 of its siblings.
Summary of Ploidy Levels
Diploid Rhododendron columbianum,
Diploid Rhododendron subarticum,
Diploid 5 plants of Rhododendron subulatum China,
Tetraploid Rhododendron diversipilosum,
Tetraploid Rhododendron diversipilosum 'Milky Way',
Tetraploid Rhododendron groenlandicum,
Tetraploid Rhododendron groenlandicum Saco Bog, Maine,
Tetraploid Rhododendron hypoleucum,
Tetraploid Rhododendron neoglandulosum,
Tetraploid Rhododendron tolmachevii,
Tetraploid Rhododendron tomentosum Turku Archipelago
Source: Arnold Arboretum Accession Number: Ledum palustre 389-97-A,B,C,D,E Wild collected in China
John and Sally Perkins
H: Sunday, February 20, 2011
Reminder: Massachusetts Chapter Meeting @ Sun Feb 27 1:30pm - 3:30pm (ARS Massachusetts Chapter Calendar)
Massachusetts Chapter MeetingMeeting in Putnam Building Susan DuBrava gives talk on "Hostas
| ||||||||||
Invitation from Google Calendar You are receiving this email at the account john.a.perkins@gmail.com because you are subscribed for reminders on calendar ARS Massachusetts Chapter Calendar. To stop receiving these notifications, please log in to https://www.google.com/calendar/ and change your notification settings for this calendar. |
Rhododendron racemosum is a Diploid
Rhododendron racemosum has been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron racemosum
Source: John and Sally Perkins
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron racemosum
Source: John and Sally Perkins
John and Sally Perkins
H: Saturday, February 19, 2011
Rhododendron keiskei is a Diploid
Rhododendron keiskei has been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron keiskei
Source: John and Sally Perkins
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron keiskei
Source: John and Sally Perkins
John and Sally Perkins
H: Friday, February 18, 2011
February Speaker
February Chapter Meeting on Sunday February 27 at Elm Bank in the Putnam Building at 1:30.
We now have a wonderful speaker on Hostas for this chapter meeting. Susan DuBrava will give us a talk on "Hostas - the Funkier the Better." She and her husband Chuck Dowdy (who is grounds supervisor for all of Northeastern University's properties) own Cochato Nursery in Holbrooke, MA. In addition to specializing in hostas, they carry "unique trees and shrubs, native plants, shade perennials, alpine and trough-type plants". The website is www.cochatonursery.com and is being updated as we speak for spring. Hope to see you there.
Susan Clark
Rhododendron mucronulatum is a Diploid
Rhododendron mucronulatum has been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron mucronulatum,
Diploid Rhododendron mucronulatum 'Waka Mirasaki'
Source: Arnold Arboretum Accession Number: 968-85
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron mucronulatum,
Diploid Rhododendron mucronulatum 'Waka Mirasaki'
Source: Arnold Arboretum Accession Number: 968-85
John and Sally Perkins
H: Thursday, February 17, 2011
Rhododendron dauricum 'Delp's Dwarf' is a Diploid
Rhododendron dauricum 'Delp's Dwarf' has been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron dauricum 'Delp's Dwarf'
Source: Joe Bruso
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron dauricum 'Delp's Dwarf'
Source: Joe Bruso
John and Sally Perkins
Reminder: P4M Workday: Planeview Nursery - Pot Cuttings @ Sat Feb 19 10am - 12pm (ARS Massachusetts Chapter Calendar)
P4M Workday: Planeview Nursery - Pot CuttingsStick Cuttings
| ||||||||||
Invitation from Google Calendar You are receiving this email at the account john.a.perkins@gmail.com because you are subscribed for reminders on calendar ARS Massachusetts Chapter Calendar. To stop receiving these notifications, please log in to https://www.google.com/calendar/ and change your notification settings for this calendar. |
H: Wednesday, February 16, 2011
Rhododendron micranthum is a Diploid
Rhododendron micranthum has been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron micranthum
Source: John and Sally Perkins
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron micranthum
Source: John and Sally Perkins
John and Sally Perkins
H: Tuesday, February 15, 2011
Rhododendron dilatatum is a Diploid
Rhododendron dilatatum has been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Although the sample we tested was labeled as Rhododendron dilatatum forma leucanthum the flowers were not white.
Summary of Ploidy Levels
Diploid Rhododendron dilatatum forma leucanthum
Source: Arnold Arboretum Accession Number: 209-87
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Although the sample we tested was labeled as Rhododendron dilatatum forma leucanthum the flowers were not white.
Summary of Ploidy Levels
Diploid Rhododendron dilatatum forma leucanthum
Source: Arnold Arboretum Accession Number: 209-87
John and Sally Perkins
H: Monday, February 14, 2011
'Epoch' is a Tetraploid
Rhododendron minus 'Epoch', which is a Augie Kehr chemically treated Rhododendron minus, has been determined to be a tetraploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron minus,
Tetraploid Rhododendron minus 'Epoch'
Source: John and Sally Perkins
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron minus,
Tetraploid Rhododendron minus 'Epoch'
Source: John and Sally Perkins
John and Sally Perkins
H: Sunday, February 13, 2011
January Newsletter
Here is the electronic February postcard (not a full newsletter this month). Hope to see you at the February Chapter Meeting on Sunday February 27 at Elm Bank in the Putnam Building at 1:30.
We lost our scheduled speaker from the Hosta Society, who moved out of state to take a new job. She has promised us a replacement, but we don't have a name yet. The topic should still be hostas.
And we can all use some nice lush pictures of growing plants that are not bowed down by snow or buried in ice, can't we?
Susan Clark
Rhododendron minus is a Diploid
Rhododendron minus has been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
No naturally occurring tetraploid Rhododendron minus have been located to date. Rhododendron minus 'Epoch', which was chemically treated to increase the ploidy level, is a tetraploid.
Summary of Ploidy Levels
Diploid Rhododendron minus,
Diploid Rhododendron minus 'Blanchette',
Diploid Rhododendron minus 'Mitchell Dam',
Diploid Rhododendron minus var. chapmanii,
Tetraploid 'Epoch'
Source: Arnold Arboretum Accession Number: 483-81-A
Source: Connecticut College Arboretum Accession Number: 81-28-C
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
No naturally occurring tetraploid Rhododendron minus have been located to date. Rhododendron minus 'Epoch', which was chemically treated to increase the ploidy level, is a tetraploid.
Summary of Ploidy Levels
Diploid Rhododendron minus,
Diploid Rhododendron minus 'Blanchette',
Diploid Rhododendron minus 'Mitchell Dam',
Diploid Rhododendron minus var. chapmanii,
Tetraploid 'Epoch'
Source: Arnold Arboretum Accession Number: 483-81-A
Source: Connecticut College Arboretum Accession Number: 81-28-C
John and Sally Perkins
H: Saturday, February 12, 2011
Reminder: P4M Workday: Planeview Nursery - Pot Cuttings @ Sat Feb 19 10am - 12pm (ARS Massachusetts Chapter Calendar)
P4M Workday: Planeview Nursery - Pot CuttingsStick Cuttings
| ||||||||||
Invitation from Google Calendar You are receiving this email at the account john.a.perkins@gmail.com because you are subscribed for reminders on calendar ARS Massachusetts Chapter Calendar. To stop receiving these notifications, please log in to https://www.google.com/calendar/ and change your notification settings for this calendar. |
Rhododendron wadanum is a Diploid
Rhododendron wadanum has been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron wadanum
Source: Arnold Arboretum Accession Number: 200-87
Source: Joe Bruso
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron wadanum
Source: Arnold Arboretum Accession Number: 200-87
Source: Joe Bruso
John and Sally Perkins
H: Friday, February 11, 2011
Rhododendron weyrichii is a Diploid
Rhododendron weyrichii has been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron weyrichii
Source: Arnold Arboretum Accession Number: 565-90
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron weyrichii
Source: Arnold Arboretum Accession Number: 565-90
John and Sally Perkins
H: Thursday, February 10, 2011
Rhododendron sanctum is a Diploid
Rhododendron sanctum has been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron sanctum
Source: Joe Bruso
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron sanctum
Source: Joe Bruso
John and Sally Perkins
H: Wednesday, February 09, 2011
Rhododendron nudipes is a Diploid
Rhododendron nudipes has been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron nudipes
Source: John and Sally Perkins
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron nudipes
Source: John and Sally Perkins
John and Sally Perkins
H: Tuesday, February 08, 2011
Rhododendron semibarbatum is a Diploid
Rhododendron semibarbatum has been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron semibarbatum
Source: John and Sally Perkins
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron semibarbatum
Source: John and Sally Perkins
John and Sally Perkins
H: Monday, February 07, 2011
Reminder: Board Meeting @ Wed Feb 9 7:30pm - 9pm (ARS Massachusetts Chapter Calendar)
Board Meeting
| ||||||||||
Invitation from Google Calendar You are receiving this email at the account john.a.perkins@gmail.com because you are subscribed for reminders on calendar ARS Massachusetts Chapter Calendar. To stop receiving these notifications, please log in to https://www.google.com/calendar/ and change your notification settings for this calendar. |
Rhododendron yeodense var. poukanense is a Diploid
Rhododendron yeodense var. poukanense has been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron yeodense var. poukanense
Source: Arnold Arboretum Accession Number: 793-84
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron yeodense var. poukanense
Source: Arnold Arboretum Accession Number: 793-84
John and Sally Perkins
H: Sunday, February 06, 2011
Rhododendron nakaharae is a Diploid
Rhododendron nakaharae has been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron nakaharae
Source: John and Sally Perkins
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron nakaharae
Source: John and Sally Perkins
John and Sally Perkins
H: Saturday, February 05, 2011
Rhododendron kaempferi is a Diploid
Rhododendron kaempferi has been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron kaempferi
Source: Joe Bruso
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron kaempferi
Source: Joe Bruso
John and Sally Perkins
H: Friday, February 04, 2011
Rhododendron schlippenbachii is a Diploid
Rhododendron schlippenbachii has been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron schlippenbachii
Source: Arnold Arboretum Accession Numner: 13432
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron schlippenbachii
Source: Arnold Arboretum Accession Numner: 13432
John and Sally Perkins
H: Thursday, February 03, 2011
Rhododendron kiusianum is a Diploid
Rhododendron kiusianum has been determined to be a diploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron kiusianum
Source: John and Sally Perkins
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Summary of Ploidy Levels
Diploid Rhododendron kiusianum
Source: John and Sally Perkins
John and Sally Perkins
Reminder: P4M Workday: Planeview Nursery - Pot Cuttings @ Sat Feb 5 10am - 12pm (ARS Massachusetts Chapter Calendar)
P4M Workday: Planeview Nursery - Pot CuttingsStick Cuttings
| ||||||||||
Invitation from Google Calendar You are receiving this email at the account john.a.perkins@gmail.com because you are subscribed for reminders on calendar ARS Massachusetts Chapter Calendar. To stop receiving these notifications, please log in to https://www.google.com/calendar/ and change your notification settings for this calendar. |
H: Wednesday, February 02, 2011
Reminder: Board Meeting @ Wed Feb 9 7:30pm - 9pm (ARS Massachusetts Chapter Calendar)
Board Meeting
| ||||||||||
Invitation from Google Calendar You are receiving this email at the account john.a.perkins@gmail.com because you are subscribed for reminders on calendar ARS Massachusetts Chapter Calendar. To stop receiving these notifications, please log in to https://www.google.com/calendar/ and change your notification settings for this calendar. |
Rhododendron atlanticum is a Tetraploid
Rhododendron atlanticum has been determined to be a tetraploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Rhododendron atlanticum was also determined to be a tetraploid using flow cytometry by Dr. Thomas Ranney, J.R. Jones, and Nathan Lynch.
Summary of Ploidy Levels
Tetraploid Rhododendron atlanticum,
Tetraploid Rhododendron atlanticum 'Winterthur'
Source: Connecticut College Arboretum Accession Number: 81-81-F
Source: Connecticut College Arboretum Accession Number: 81-81-L
Source: Longwood Gardens Accession Number: 2008-0224-E
Source: George Hibben
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Rhododendron atlanticum was also determined to be a tetraploid using flow cytometry by Dr. Thomas Ranney, J.R. Jones, and Nathan Lynch.
Summary of Ploidy Levels
Tetraploid Rhododendron atlanticum,
Tetraploid Rhododendron atlanticum 'Winterthur'
Source: Connecticut College Arboretum Accession Number: 81-81-F
Source: Connecticut College Arboretum Accession Number: 81-81-L
Source: Longwood Gardens Accession Number: 2008-0224-E
Source: George Hibben
John and Sally Perkins
H: Tuesday, February 01, 2011
Rhododendron luteum 'Golden Comet' is a Tetraploid
Rhododendron luteum 'Golden Comet' has been determined to be a tetraploid using flow cytometry by
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Rhododendron luteum was also determined to be a tetraploid using flow cytometry by Dr. Thomas Ranney, J.R. Jones, and Nathan Lynch.
Summary of Ploidy Levels
Tetraploid Rhododendron luteum,
Tetraploid Rhododendron luteum 'Golden Comet'
Source: John and Sally Perkins
John and Sally Perkins
Dr. João Loureiro, Dr. Silvia Castro, José Cerca, and Mariana Castro
Plant Ecology and Evolution Group,
Centre for Functional Ecology,
Department of Life Sciences,
Faculty of Science and Technology,
University of Coimbra, Portugal.
Rhododendron luteum was also determined to be a tetraploid using flow cytometry by Dr. Thomas Ranney, J.R. Jones, and Nathan Lynch.
Summary of Ploidy Levels
Tetraploid Rhododendron luteum,
Tetraploid Rhododendron luteum 'Golden Comet'
Source: John and Sally Perkins
John and Sally Perkins
Subscribe to:
Posts (Atom)