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Issue: Vol. 227 No. 1: 18 September 2015
Type: Article
Published: 2015-09-18
DOI: 10.11646/phytotaxa.227.1.1
Page range: 1–12
Abstract views: 16
PDF downloaded: 1

Frullania dorsimamillosa, a unique new species from Central China and the resurrection of Frullania chinlingensis (Frullaniaceae, Marchantiophyta)

Laboratory of Lichenology and Bryology, Komarov Botanical Institute, Russian Academy of Sciences, 2 Professor Popov Street, St. Petersburg 197376, Russia
Department of Systematic Botany with Herbarium Haussknecht and Botanical Garden, Friedrich Schiller University, Fürstengraben 1, 07737 Jena, Germany
Institute for Biological Problems of Cryolithozone, Siberian Branch of the Russian Academy of Sciences, 41 Lenin Avenue, Yakutsk 677980, Russia
Laboratory of Lichenology and Bryology, Komarov Botanical Institute, Russian Academy of Sciences, 2 Professor Popov Street, St. Petersburg 197376, Russia Tsitsin Main Botanical Garden, Russian Academy of Sciences, Botanicheskaya 4, Moscow 127276, Russia Polar-alpine Botanical Garden-Institute, Kola Science Centre, Russian Academy of Sciences, 184236 Kirovsk-6, Russia
ecophysiological adaptation leaf cell protrusions liverwort morphology Porellales Sichuan taxonomy Bryophytes China

Abstract

Frullania dorsimamillosa is described as new to science based on collections from northeastern Sichuan, China. The closely related F. chinlingensis from Shaanxi has been erroneously treated as a synonym of F. dilatata and has to be resurrected. The distinguishing features are discussed and a determination key is provided. Frullania dorsimamillosa and F. chinlingensis are ascribed to F. subg. Frullania and are unique in having conspicuous protrusions on the dorsal leaf surface. The development of papillae-like structures is considered to be an ecophysiological adaptation primarily aiding for light reflection and for water uptake.