Checklist and typification of Parnassia (Celastraceae) Author Shu, Yumin Laboratory of Systematic Evolution and Biogeography of Woody Plants, College of Nature Conservation, Beijing Forestry University, Beijing 100083, China Author Yu, Huiying Laboratory of Systematic Evolution and Biogeography of Woody Plants, College of Nature Conservation, Beijing Forestry University, Beijing 100083, China Author Mu, Xianyun Laboratory of Systematic Evolution and Biogeography of Woody Plants, College of Nature Conservation, Beijing Forestry University, Beijing 100083, China Author Zhang, Zhixiang Laboratory of Systematic Evolution and Biogeography of Woody Plants, College of Nature Conservation, Beijing Forestry University, Beijing 100083, China & Museum of Beijing Forestry University, Beijing 100083, China text Phytotaxa 2017 2017-06-09 309 1 1 22 http://dx.doi.org/10.11646/phytotaxa.309.1.1 journal article 10.11646/phytotaxa.309.1.1 1179-3163 Parnassia townsendii B.L. Roinson (1904: 266) TYPE :— MEXICO . Sierra Madres near Chuichupa , 2600 m , 16 September 1899 , Townsend et Barber 431 ( holotype : GH00042884 ; isotypes : F0066630 F , K000471003 , E00296202 , NY00186142 , NDG21256 ) = Parnassia mexicana Rose (1906: 438) TYPE :— MEXICO . Sierra Madres near Chuichupa, 2600 m , 16 September 1899 , Townsend et Barber 431 ( holotype : US 00096932) Notes: Parnassia townsendii and P. mexicana were published based on a same collection that deposited in different herbaria.