Exploratory study of petiolar scales inRhopalostylis(Arecaceae)
| Autor: | Joshua Salter, Catia Delmiglio |
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| Rok vydání: | 2005 |
| Předmět: | |
| Zdroj: | New Zealand Journal of Botany. 43:631-646 |
| ISSN: | 1175-8643 0028-825X |
| DOI: | 10.1080/0028825x.2005.9512980 |
| Popis: | At species level, the three taxa currently recognised in the genus Rhopalostylis (Arecaceae) are: R. baueri of Norfolk Island, R. cheesemanii from the Kermadec Islands, and R. sapida (nikau) from New Zealand and the Chatham Islands, but this classification has not been universally accepted. Even within the New Zealand botanical region, adults and seedlings of the Chatham Islands variant differ morphologically from R. sapida in mainland New Zealand. However, juveniles of all entities are less easily distinguished, leading to concerns that this may become a problem for conservation in New Zealand. The indumentum on petioles of juvenile and adult specimens of Rhopalostylis from mainland New Zealand, Chatham Islands, Kermadec Islands, and Norfolk Island, and one specimen of Hedyscepe canterburyana from Lord Howe Island, was examined for characters that could distinguish between them. Hedyscepe scales were distinctive, but in Rhopalostylis taxa the scale morphology was too variable to be useful for di... |
| Databáze: | OpenAIRE |
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