A new location for the poor knights spleenwort (Asplenium pauperequitum, Aspleniaceae) on the forty fours, Chatham Islands, New Zealand
A new location for the poor knights spleenwort (Asplenium pauperequitum, Aspleniaceae) on the forty fours, Chatham Islands, New Zealand
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DOI:
10.1080/0028825x.2006.9513018
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发表时间:
2006-06-01
影响因子:
0.9
通讯作者:
Bellingham, R. M.
中科院分区:
文献类型:
--
作者:
Cameron, E. K.;de lange, P. J.;Bellingham, R. M.
Documentation is made of the discovery of the Poor Knights spleenwort, (Asplenium pauper-equitum) in a sample of vascular plant specimens collected from The Forty Fours. These islands are the easternmost outlier of the Chatham Islands archipelago. Hitherto this fern had been believed endemic to the Poor Knights Islands and Mokohinau Islands of the Hauraki Gulf, off eastern Northland, North Island, New Zealand. Frond and spore morphology together with chloroplast DNA sequences were used to confirm its identity. Whether this fern disjunction of some 1245 km is the result of vicariance or long-distance dispersal is discussed and long-distance dispersal of fern spores or whole sporangia is considered most likely.