Taxonomic and Ecological Notes on the Alsophila hornei Complex (Cyatheaceae-Polypodiopsida), with the Description of the New Species A. phlebodes from New Guinea
Taxonomic and Ecological Notes on the Alsophila hornei Complex (Cyatheaceae-Polypodiopsida), with the Description of the New Species A. phlebodes from New Guinea
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DOI：
10.1600/036364413x674788
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发表时间：
2013-12
期刊：
影响因子：
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通讯作者：
M. Lehnert;F. Coritico;D. Darnaedi;Arief Hidayat;Jürgen Kluge;D. Karger;M. Kessler
中科院分区：
文献类型：
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作者：
M. Lehnert;F. Coritico;D. Darnaedi;Arief Hidayat;Jürgen Kluge;D. Karger;M. Kessler
摘要对裸盖壳属的形态变异树蕨Alsophila hornei进行了分类学和生态学评价。虽然只有一个形态种存在于斐济的模式产地，但在新几内亚的一个海拔样带上沿着可发现三个种。在新几内亚的低海拔地区也有Alsophila hornei。Alsophila phlebodes是新描述的，到目前为止只在新几内亚的Vogelkop半岛的高海拔地区发现。在同域分布的同类植物中，它具有相对浅棕色的叶柄鳞片和在叶柄上形成围绕树干顶端的假发状结构的发育良好、高度多裂的远程基部羽状花序。Alsophila olivacea恢复并从A. hornei和A.在新几内亚的山区，主要是由于缺乏不定羽状花序和具有中间海拔分布。本文提供了一个裸子甲属（Gymnophaera）澳大利亚种的检索表，以便于该类群的地理学和遗传学研究。
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.