Phylogeny of Chinese Chamaesium (Apiaceae: Apioideae) inferred from ITS, cpDNA and morphological characters Author Guo, Xian Lin Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan, 610065, China Author Wang, Chang Bao College of Life Sciences, Jiamusi University, Jiamusi, Heilongjiang, 154007, China Author Wen, Jun Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan, 610065, China Author Zhou, Songdong Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan, 610065, China Author He, Xing Jin Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan, 610065, China text Phytotaxa 2018 2018-11-15 376 1 1 16 http://dx.doi.org/10.11646/phytotaxa.376.1.1 journal article 10.11646/phytotaxa.376.1.1 1179-3163 13726570 Chamaesium mallaeanum Farille & Malla (1985: 537) ≡ Dolpojestella mallaeanum (Farille & S.B.Malla) Farille & Lachard (2002: 370) ( Fig. 5 ) Type: Nepal . Annapurna Massif , North Slope of Namun Pass (Langtang himal), 3800 m , 24 September 1981 , M.A.Farille 81537 ( holotype : KATH !; isotype : E00000248!) . Notes: — Chamaesium mallaeanum usually possess fruits with undulate wings. It worth noting that Farille & Lachard (1985, 2002) transferred it to Dolpojestella Farille & Lachard (2002: 370) , based on its special characters of fruits and stylopodium. There are some reasons to support C. mallaeanum as a member of Chamaesium . Firstly, C. mallaeanum also have 1-pinnate leaf blade, and fruit with developed secondary ribs, which are sufficient to distinguish from other species of Apiaceae . Secondly, the fruit Characteristics of Chamaesium were diverse, C. thalictrifolium have fruits with obscure ribs when mature ( Fig.7E ) and C. viridiflorum have obvious smaller fruits than the fruits of other species ( Fig. 8E ). Finally, phylogenetic analysis of this genus also supports to treat C. mallaeanum as a member of Chamaesium based on its reasonable difference ( Fig. 1–2 ). Distribution in China : — Xizang . ( Fig. 3 ) Distribution outside China : —Nepal. Habitat:— Chamaesium mallaeanum grows in dwarf rhododendron scrub or grassland at an elevation of ca. 3700 m . Specimens examined: — CHINA . Xizang : Nyalam Xian, 3700 m , 1 September 2015 , X.L.Guo & H.X.Yu GXL15090101 (SZ).