Systematics Collections Data

CHR 527246 A – Calystegia sepium subsp. roseata Brummitt

Data provider:
Allan Herbarium
Barcode:
CHR 527246 A
Specimen type:
Sheet
Database record added:
10 October 2002
Database record updated:
01 June 2006
Components
Primary component
Active identification
Determined name:
probably Calystegia sepium subsp. roseata × C. silvatica subsp. disjuncta
Determiner:
R.K. Brummit
Identification date:
2006-03-20 (Verbatim: 20 Mar 2006)
Preferred name:
Calystegia sepium subsp. roseata Brummitt
Division:
Spermatophyta
Class:
Magnoliopsida
Order:
Solanales
Family:
Convolvulaceae
Identification type:
Determination
Note:
I have looked again at Ogden 8 [CHR 527246 A-D] and Ogden 22 [CHR 527259 A-D] which both have white flowers. Both have flowers well above the usual size range of C. sepium subsp. sepium (their corolla often over 50mm, stamens often over 25mm). Number 8 has leaves which would be quite typical of subsp. roseata, but it apparently does not have pink flowers, and its bracteoles are fairly large and sometimes overlapping and perhaps suggestive of C. silvatica subsp. disjuncta. Number 22 has different leaves, often with a broad sinus as in C. silvatica, and sometimes rather broad and obtuse bracteoles. It is difficult to be certain, but I suspect that both these collections are hybrids of C. sepium subsp. roseata and C. silvatica subsp. disjuncta. I have so far no clear evidence of subsp. sepium in New Zealand.
Other identifications
Identification
Determined name:
Calystegia sepium cf. subsp. sepium
Determiner:
Identification date:
Preferred name:
Calystegia sepium (L.) R.Br. subsp. sepium
Active:
no
Identification type:
Determination
Note:
Not typical of European forms of subsp. sepium according to RK Brummitt (pers. comm.).
Collection events
Primary collection event
Collection event type:
Field
Standard locality
Location:
Putaruru (N35.21)
Verbatim locality:
Putaruru (N35.21)
Verbatim collector:
John Odgen 8
Standardised collector:
John Odgen
Verbatim date:
1/1970
Start date:
1970-01
Land District:
South Auckland Land District
Country:
New Zealand
Notes:
Population 3. Sheet 11. Collection No: 8 (Old No: 3). Specimens also at Kew (R.K. Brummitt). Original number of flowers measured: 26. Colour: White.Measurements with standard errors (s/ √n ) in mm.: Bracteole 22.58±0.59 Corolla 43.00±2.07 Peduncle 94.50±6.04 Petiole 48.88±3.45 Lamina 65.15±2.61 Stamens 20.6, 25.4 Anthers 5.2, 6.3.See: Ogden J (1978) Variation in Calystegia R.Br. (Convolvulaceae) in New Zealand. N.Z.Jl.Bot. [N.Z.J.B.] 16.
Specimen notes
Subsheet:
Sheets A to D.
Herbarium history:
The Australian National University.
Supplementary remarks:
CHR 527246 comprises 4 sheets (A,B,C,D) that include all samples of collection no. 8.
P.B. Heenan, 18 May 2001
Permissions
Project permits
Reference:
CHR Collection - Local Contexts
Biocultural (BC) Notice