Reinerantha foliicola, a new genus and species of Lejeuneaceae subtribe Cololejeuneinae （Marchantiophyta） from Ecuador  

作　　者：S. Robbert Gradstein Rui-Liang Zhu Lei Shu Alvaro J. Perez 

机构地区：[1]Museum National d'Histoire Naturelle, Institut de Systematique Evolution Biodiversite, Herbier National, Case Postale 39, 12 rue Buffon, 75004 Paris, France [2]Department of Biology, School of Life Sciences, East China Normal University, 3663 Zhong Shan North Road, Shanghai 200062, China [3]Herbario QCA, Escuela de Ciencias Biologicas, Pontificia Universidad Catolica del Ecuador, Apartado 17-01-2184, Quito, Ecuador

出　　处：《Journal of Systematics and Evolution》2018年第1期67-75,共9页植物分类学报（英文版）

基　　金：The first author expresses his gratitude to Susana Leon-Yanez for her support during his stay in Ecuador. We thank the loans officer of herbarium CHR for the loan of Nephelolejeunea nudipes and for allowing DNA analysis of the material, Michelle Price （herbarium G） for the loan of the type of Tuyamaella jackii, and Chatchaba Promma and Xia-Fang Cheng for preparation of the illustrations. This research was supported by the National Natural Science Foundation of China （Grants 31370238 and 31570206 to R.L. Zhu）.

摘　　要：Cololejeuneinae is the largest subtribe of the liverwort family Lejeuneaceae and the crown group of the family. The species often grow on the surfaces of living leaves and twigs or in swiftly running waters and many of them possess neotenic gametophytes, considered an adaptation to these extreme habitats. We describe a new, epiphyllous genus and species in Cololejeuneinae from the Western Cordillera of Ecuador, Reinerantha foliicola Gradst. ＆ R.L.Zhu. Analysis of combined molecular datasets with parsimony, maximum likelihood and Bayesian methods revealed Reinerantha in a sister relationship to the large pantropical genus Diplasioleieunea. Reinerantha differs from Diplasioleleunea in leaf segmentation, epidermal wall thickening, stylus, male bracts and perianth keels, and is morphologically more similar to the genus Tuyamaella. In the molecular analysis, however, Reinerantha and Tuyamaella were resolved in different clades and not closely related. Tuyamaella is shown to be restricted to Asia; the report of Tuyamaella from South America （Peru） was erroneous and a case of mislabeling.Cololejeuneinae is the largest subtribe of the liverwort family Lejeuneaceae and the crown group of the family. The species often grow on the surfaces of living leaves and twigs or in swiftly running waters and many of them possess neotenic gametophytes, considered an adaptation to these extreme habitats. We describe a new, epiphyllous genus and species in Cololejeuneinae from the Western Cordillera of Ecuador, Reinerantha foliicola Gradst. ＆ R.L.Zhu. Analysis of combined molecular datasets with parsimony, maximum likelihood and Bayesian methods revealed Reinerantha in a sister relationship to the large pantropical genus Diplasioleieunea. Reinerantha differs from Diplasioleleunea in leaf segmentation, epidermal wall thickening, stylus, male bracts and perianth keels, and is morphologically more similar to the genus Tuyamaella. In the molecular analysis, however, Reinerantha and Tuyamaella were resolved in different clades and not closely related. Tuyamaella is shown to be restricted to Asia; the report of Tuyamaella from South America （Peru） was erroneous and a case of mislabeling.

关 键 词：Oiplasiolejeunea epiphyllous liverworts molecular phylogeny MORPHOLOGY TAXONOMY Tuyarnaella Tuyamaella jackii. 

分 类 号：O212.1[理学—概率论与数理统计] S968.42[理学—数学]