首页|APTYCHELLA PLANULA (BRYOPSIDA: PYLAISIADELPHACEAE) - AN ADDITION TO THE WESTERN HIMALAYAN BRYOFLORA
APTYCHELLA PLANULA (BRYOPSIDA: PYLAISIADELPHACEAE) - AN ADDITION TO THE WESTERN HIMALAYAN BRYOFLORA
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The Himalayas are the home of bryophytic wealth. Scanty information is available about the bryodiversity of the Western Himalayan region. Bahuguna et al. (2016) reported 113 species of 65 moss genera from the Kedarnath wildlife sanctuary in Garhwal Himalaya. The Tungnath forest area which endows enormous diversity of both liverworts and mosses has not been surveyed thoroughly though it was part of their study area. The bryophyte wealth of a ravishing natural beauty of the Tungnath area (2100-3800 m),Rudraprayag district, Garhwal region in Uttarakhand, was explored in collaboration with Govind Ballab Pant National Institute of Himalayan Environment and Development (GBPNIHESD), Kosi Katarmal, Almora. The specimens were collected from the flourishingbryophytic layer on the trunks and branches of trees and the thick, green carpet on the forest floor in different location. Among the collections, there was an interesting gemmiferous pleurocarpous moss, a species of Clastobryopsis M.Fleisch. (Musci Buitenzorg 4: 1179. 1923) which is now considered a synonym of Aptychella (Broth.) Herzog (Biblioth. Bot. 87: 157. 1916) of Pylaisiadelphaceae (Bryidae, Hypnales). The Asiatic epiphytic genus Clastobryopsis is treated as a synonym of Aptychella based on phylogenetic analyses of plastid (rp!16, rps4, and trnL-F) and mitochondrial (nad5) gene sequences as well as morphological features (Akiyama et al., 2015). Thus far, this genus is not known from the Western Himalaya. Globally, there are 16 species of Aptychella (WFO, 2020). So far, Clastobryopsis mulleri (Dixon) Tixier, and C. planula (Mitt.) M. Fleisch. are known (Tixier, 1977; Gangulee, 1980; Lal, 2005) of this genus from the Eastern Himalayan region only. Of these, C. mulleri was listed as an endemic species to the Eastern Himalaya (Gangulee, 1980; Dandotiya et al., 2011). The East Asiatic-Oceanic species, A. planula (Mitt.) M.
Sapana Pant、Manisha Bhandari、S.D. Tewari
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Department of Botany, Indira Priyadarshini Government Girls Post Graduate College of Commerce, Haldwani - 263 139, Nainital, Uttarakhand, India
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