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1 December 2013 Taxonomic and Ecological Notes on the Alsophila hornei Complex (Cyatheaceae-Polypodiopsida), with the Description of the New Species A. phlebodesfrom New Guinea
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Abstract

The morphologically variable tree fern Alsophila hornei of the Gymnosphaera clade is taxonomically and ecologically evaluated. While there is only one morphospecies present at the type locality on Fiji, three species can be characterized along an elevational transect on New Guinea. Alsophila hornei is also present at low elevations throughout New Guinea. Alsophila phlebodes is newly described and so far only found at high elevations on the Vogelkop Peninsula of New Guinea. Among its sympatric congeners, it stands out by having relatively pale brown petiole scales and well-developed, highly dissected remote basal pinnae on the petioles that form a wig-like structure around the trunk apex. Alsophila olivacea is reinstated and separated from A. hornei and A. phlebodes mainly by lacking adventitious pinnae and having an intermediate elevational distribution in the mountains of New Guinea. A key to the Australasian species of the Gymnophaera clade is provided in order to facilitate taxonomic studies of this biogeographically and phylogenetically interesting group.

© Copyright 2013 by the American Society of Plant Taxonomists
Marcus Lehnert, Fulgent P. Coritico, Dedy Darnaedi, Arief Hidayat, Jürgen Kluge, Dirk Nikolaus Karger, and Michael Kessler "Taxonomic and Ecological Notes on the Alsophila hornei Complex (Cyatheaceae-Polypodiopsida), with the Description of the New Species A. phlebodesfrom New Guinea," Systematic Botany 38(4), (1 December 2013). https://doi.org/10.1600/036364413X674788
Published: 1 December 2013
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