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The Genus Syntrichia Brid. (Pottiaceae, Bryophyta) in the Holarctic with Special Consideration of North America
This volume 154 is the first comprehensive treatment of the genus Syntrichia in the Holarctic. Syntrichia (Pottiaceae, Bryophyta) is a genus with a large number of species existing on all continents. Some of the taxa are difficult to distinguish. Many names had to be reclassified taxonomically. The main focus of this work is on the species present in North America as those are often not well understood. Because the Holarctic part of Eurasia is connected to North America, the species of the entire extra-tropical Northern Hemisphere are studied. About 110 taxa are examined. The studies resulted in 34 species with 59 taxa of Syntrichia and three species which had to be assigned to other genera....
Taxonomic Revision of Hennediella Paris (Pottiaceae, Bryophyta)
The moss genus Hennediella is taxonomically revised. A key, descriptions, illustrations, distribution data, LM and SEM photographs of the 15 species recognized are provided. A morphometric study of 226 specimens is carried out to test the most significant characters and a multivariate analysis is made for the Hennediella heimii group to distinguish patterns of morphological differentiation. Thirty-seven names are lectotypified and two epitypes designated. Hennediella serrulata and H. angustifolia are transferred to the genus Syntrichia. Desmatodon spelaeus, Hennediella oedipodioides, Pottia chubutensis and Syntrichia astoma are synonymyzed with H. heimii, and Pottia fusco-mucronata and Hennediella acutidentata with H. antarctica. Hennediella acletoi and T. leiostomoides are synonymyzed respectively with H. denticulata and H. longirostris. The sporophyte of Hennediella bellii is described for the first time. New records for various countries of the study area are reported.
Pottiaceae
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