Stolonicaulon: A Section-Puzzle within Marsupella (Gymnomitriaceae, Marchantiophyta)

Plants

Van Sinh Nguyen¹  Vadim A. Bakalin²  Yulia D. Maltseva²  Ksenia G. Klimova²  Anna A. Vilnet³  Yuriy S. Mamontov³  Alfons Schäfer-Verwimp⁴  Seung Se Choi⁵ 

[1] Institute of Ecology and Biological Resources, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Ha Noi 10072, Vietnam;Laboratory of Cryptogamic Biota, Botanical Garden-Institute FEB RAS, Makovskogo Street 142, Vladivostok 690024, Russia;Laboratory of Flora and Vegetation, Polar-Alpine Botanical Garden-Institute of the Russian Academy of Sciences, Akademgorodok, 18A, Apatity 184209, Russia;Mittlere Letten 11, 88634 Herdwangen-Schönach, Germany;Team of National Ecosystem Survey, National Institute of Ecology, Seocheon 33657, Korea;

关键词: Marsupella;    Gymnomitriaceae;    molecular phylogenetic;    Pacific Asia;    phytogeography;    Marchantiophyta;   

DOI  :  10.3390/plants11121596

来源: DOAJ

【 摘 要 】

Marsupella sect. Stolonicaulon is not speciose and is a commonly neglected section within the genus, which currently includes three species with somewhat similar morphologies (wiry shoots with distanced leaves) and distributions in the mountains of tropical and subtropical regions (SE (Southeast) Asia, the Venezuelan Andes, and the high mountains of SE Brazil). After studying materials that were found to be dissimilar to the “traditional” Marsupella that were collected in the last decade by the authors of this article, it was found that these plants belong to three new-for-science species, and all of these species should be included in Marsupella sect. Stolonicaulon. The newly described species have expanded the boundaries of morphological variability, not only for the section itself, but also for the genus based on two findings: (1) the leaves of Marsupella sect. Stolonicaulon can be either appressed and entire or spaced and deeply divided (thus, the plants could occasionally be similar to Cephaloziella or Anastrophyllum); (2) some species of the section possess regular underleaf production. The first discovery of regular underleaves in Marsupella, as noted in two of the three newly described taxa, is the main morphological novelty described in this paper. The development of regular underleaves is a presumable relict character that brings Marsupella closer to Nardia, which was recently transferred to the Gymnomitriaceae and occupies an isolated position within its own subfamily, Nardioideae.

【 授权许可】

Unknown