Taxonomic and morphometric comments on Macromitrium blumei, M. zollingeri and M. annamense (Orthotrichaceae, Bryophyta)
Macromitrium zollingeri Mitt. ex Bosch & Sande Lac. and M. blumei Nees ex Schwägrichen are two confusing taxa, and M. annamense Broth. & Paris is a poorly known species. In the present paper, Cluster Analysis and Principle Component Analysis were applied to evaluate the taxonomic distinctiveness of these three species based on eleven character indices of morphology of leaves and setae sampled from three type specimens and 38 other specimens preserved at H-BR and H. The results showed: 1) Macromitrium zollingeri is better recombined as M. blumei var. zollingeri, which differs from M. blumei var. blumei in having longer leaf with longer awn, and a ligulate leave shape with higher ratio of leaf length/leaf width; 2) Macromtirum annamense is proposed to be a new synonym of M. blumei var. zollingeri.
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Document Type: Research Article
Publication date: May 1, 2006
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- Nova Hedwigia is an international journal publishing original, peer-reviewed papers on current issues of taxonomy, morphology, ultrastructure and ecology of all groups of cryptogamic plants, including cyanophytes/cyanobacteria and fungi. The half-tone plates in Nova Hedwigia are known for their high quality, which makes them especially suitable for the reproduction of photomicrographs and scanning and transmission electron micrographs.
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