Crepidium calophyllum

Ormerod, Paul, Kurzweil, Hubert & Watthana, Santi, 2021, Annotated List of Orchidaceae for Myanmar, Phytotaxa 481 (1), pp. 1-262 : 77

Crepidium calophyllum (Rchb.f.) Szlach., Fragm. Florist. Geobot., Suppl. 3: 125, 1995

Basionym: Microstylis calophylla Rchb. f., Gard. Chron., n.s., 12: 718, 1879.

Homotypic synonym: Malaxis calophylla (Rchb.f.) Kuntze, Revis. Gen . Pl. 2: 673, 1891.

Heterotypic synonyms: Liparis elegantissima Jacob-Makoy ex T.Moore & Mast., Gard. Chron. , n.s., 5: 603, 1876.

Microstylis wallichii Lindl. var. brachycheila Hook. f., Fl. Brit. India 5: 686, 1888. Malaxis calophylla (Rchb.f.) Kuntze var. brachycheila (Hook.f.) Tang & F.T.Wang, Acta Phytotax. Sin. 1: 71, 1951. Type:— MYANMAR. Mon State: Mawlamyine District, Parish 191 (holotype: K).

Microstylis scottii Hook. f., Fl. Brit. India 5: 687, 1890. Malaxis scottii (Hook.f.) Kuntze, Revis. Gen . Pl. 2: 673, 1891. Type:— MYANMAR. Southern Bago Region: icon. Scott s.n. (holotype: CAL; copy K).

Specimens examined:— KACHIN. Putao District: fide Aung et al. (2020: 73). CHIN. Mindat District : fide Kang et al. (2017a: 67); same loc., 26 Jul 2015, Kim s.n., photo . MANDALAY. Pyinoolwin District: fide Aung et al. (2020: 73). SHAN. Taunggyi District : 25 Jul 2019, 1250 m, Hervouet s.n., photo . BAGO. Bago District: type . MON. Mawlamyine District : type. Also reported from Yangon Region by Kress et al. (2003: 83; as Malaxis calophylla ), but we have not seen material from this area.

Distribution:— The eastern Himalayas, northeastern India, Myanmar, Thailand, Indochina, southwestern and southern China and Borneo.

Note:— Liparis elegantissima is treated as synonym of Microstylis calophylla ( Ridley 1888: 340) , and has priority over it by three years. However, we do not recognize a species based only on minor vegetative elements (leaves with a bronze-coloured centre and a pallid spotted margin).