Bakalin V.A., Vilnet A.A., Xiong Y.
Journal of Bryology 2015; 37(3): 192-201
Morphologically unique specimens of Mesoptychia (Lindb.) A.Evans recently collected in Guizhou Province, China were sequenced and analysed using a combined trnL+FztrnG-intron cpDNA dataset from 10 known taxa of Mesoptychia. Using a combination of morphological and molecular data, Mesoptychia chinensis Bakalin, Vilnet & Xiong sp. nov. is described as new to science. Mesoptychia polymorpha subsp. pakistanica Bakalin & Vilnet subsp. nov. is established based on morphological data only. Mesoptychia ussuriensis is newly recorded for China. New molecular data for species delimitation within Mesoptychia distributed in southern and south-east Asia are provided.