New Zealand Journal of Botany abstracts

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Dracophyllum (Epacridaceae) in the Chatham and subantarctic islands of New Zealand

P. WARDLE

Botany Division, DSIR
Private Bag, Christchurch, New Zealand

Abstract Populations of Dracophyllum on the Chatham and Campbell islands were sampled and scored for leaf characters and the number of flow- ers in the racemes. It was concluded that the en- tities known as D. scoparium Hook. f. (Campbell Island) and D. paludosum Cockayne (Chatham Island) are conspecific, the former name having priority. On Campbell Island, D. scoparium hybridises with D. longifolium var. cockayneanum (Du Rietz) Oliver, which also grows on the Auck- land Islands, whereas on Chatham Island it hybrid- ises with the endemic D. arboreum Cockayne. Holocene dispersal of D. scoparium to Campbell Island is suggested, as it is unlikely to have sur- vived the last glaciation there.

Keywords Campbell Island; Chatham Islands; dispersal; Dracophyllum paludosum; Holocene; hybrids; subantarctic

Received 6 June 1986; accepted 23 June 1986
New Zealand Journal of Botany, 1987, Vol. 25: 107-114
0028-825X/87/2501-0107$2.50/0 © Crown copyright 1987

PDF file of entire paper: medium quality (1419K); (scanned from paper original: notes about this process)

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