Plant Systematics and Evolution

, Volume 304, Issue 10, pp 1269–1287 | Cite as

A review of the genus Diplophyllum (Marchantiophyta) in North and East Asia with the description of a new species (D. sibiricum) based on integrative taxonomy

  • Vadim BakalinEmail author
  • Anna Vilnet
Original Article


Diplophyllum sibiricum is described based on plants from North and East Asia. It somewhat resembles D. obtusifolium, from which it differs in coloration and highly protandrous paroecy, as well as distribution. The species status of D. trollii is confirmed based on molecular studies, and it is additionally recorded from the spurs of the Himalaya in Guizhou Province of China. Both taxa are slightly molecularly divergent ‘young’ species that are strongly defined geographically from close morphological relatives. Diplophyllum obtusatum and D. obtusifolium should be excluded from the flora of North Asia. A key to Diplophyllum taxa in North and East Asia is provided. Probable cryptic speciation was observed within D. albicans, but this problem is regarded as requiring further studies. The split of Diplophyllum subg. Diplophyllum into two sections is not maintained.


Diplophyllum East Asia Hepaticae North Asia Phytogeography Scapaniaceae Taxonomy 



The authors are sincerely grateful to Dr. William R. Buck (NY) for the linguistic correction in the manuscript and to Mr. Matvej Bakalin for the preparation of the illustrations. The work was partially supported by the Russian Foundation for Basic Researches (Grant Nos. 17-04-00018, 18-04-00594). The specimens from Guizhou Province were collected in the course of a joint Russian-Chinese investigation of the area in 2013, and the authors are grateful to Prof. Y. Xiong (Guiyang University) for guidance and obtained permissions.

Supplementary material (75 kb)
Online Resource 1. The combined nucleotide sequences alignment of ITS1-2 nrDNA, trnL-F and rbcL cpDNA of Diplophyllum specimens included in current study. The specimens are named accordingly with Fig. 1. (DOCX 75 kb)


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Copyright information

© Springer-Verlag GmbH Austria, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Botanical Garden-InstituteVladivostokRussia
  2. 2.Polar-Alpine Botanical Garden-InstituteApatityRussia

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