Coelogyne tenasserimensis Seidenf., Dansk Bot. Ark.

Ormerod, Paul, Kurzweil, Hubert & Watthana, Santi, 2021, Annotated List of Orchidaceae for Myanmar, Phytotaxa 481 (1), pp. 1-262 : 74-75

Coelogyne tenasserimensis Seidenf., Dansk Bot. Ark. 29 (4): 73, 1975

Specimens examined:— MANDALAY. Mandalay District: Swinhoe 99 & 103 ( K) . SHAN. Taunggyi District: fide Nyan Tun (2014: 126; as Coelogyne pallens , & 128). MON. Mawlamyine District: Parish 174 B ( K, icon. K) . TANINTHARYI. Dawei District: 280 m, 1 Apr 2012, Saw Lwin et al. TNRO 90 ( SING [s]); same loc., 1 Mar 2015, Saw Lwin et al. TNRO 273 ( RAF, photo seen) .

Distribution:— Myanmar and Thailand.

Coelogyne trinervis Lindl. , Gen . Sp. Orchid. Pl.: 41, 1830. Type:— MYANMAR. Tanintharyi Region: Dawei District , Wallich, Numer. List: no. 1955 (holotype: K-LINDL)

Homotypic synonym: Pleione trinervis (Lindl.) Kuntze, Revis. Gen . Pl. 2: 680, 1891.

Heterotypic synonyms: Coelogyne rossiana Rchb. f., Gard. Chron., n.s., 22: 808, 1884. Pleione rossiana (Rchb.f.) Kuntze, Revis. Gen . Pl. 2: 680, 1891. Type:— MYANMAR. Without locality: Ross s.n. (holotype: W-R 9039; isotype: K).

Specimens examined:— SHAN. Kengtung District : 12 Mar 1957, Egerod B- 107 in Univ. California Bot. Gard. access. no. 57.268-1 ( K) . KAYAH or KAYIN. Dawna Range : 915 m, 24 Jul 1928, Cooper 1701 ( K) . MON. Mawlamyine District : 26 Oct 1927, Bogg BG 19 ( K); same loc., 100 m, 18 Oct 1929, Kerr s.n. ( K) . TANINTHARYI. Dawei District: type; same loc., 245 m, Sep 1961, Keenan et al. 5466 ( E), ident. uncertain [material very poor]; same loc., 195 m, 13 Sep 2012, Saw Lwin et al. TNRO 145 ( SING [s]); Myeik District : Griffith s.n. ( K, MEL); same loc., Parish 343 (not located), fide Parish (1883: 196). WITHOUT LOCALITY. Type; Lamington 13 ( K) .

Distribution:— Northeastern India, Myanmar, Thailand, Indochina and Malesia as far east as the Moluccas.

Coelogyne triplicatula Rchb. f., Bot. Zeitung (Berlin) 22: 415, 1864. Type :— MYANMAR. Mon State : Mawlamyine District , cult. Day ex Parish s.n. (holotype: W)

Homotypic synonym: Pleione triplicatula (Rchb.f.) Kuntze, Revis. Gen . Pl. 2: 680, 1891.

Specimens examined:— SHAN. Taunggyi District : fide Nyan Tun (2014: 134 [as Coelogyne sp. ]) . KAYIN. Dawna Range: fide Aung et al. (2020: 73). MON. Mawlamyine District : type; same loc., Parish s.n. ( K) .

Distribution:— Myanmar and Thailand.

Coelogyne ustulata C.S.P.Parish & Rchb. f., Trans. Linn. Soc. London 30: 146, 1874. Type :— MYANMAR. Mon State : Mawlamyine District, Parish 174A (holotype: W-R; isotype: K; icon. W-R 13808 & 43809)

Homotypic synonym: Pleione ustulata (C.S.P.Parish & Rchb.f.) Kuntze, Revis. Gen . Pl. 2: 680, 1891.

Heterotypic synonym:? Coelogyne tsii X.H.Jin & H.Li, Ann. Bot. Fenn. 43: 295, 2006.

Specimens examined:— KACHIN. Putao District: fide Aung et al. (2020: 73); Myitkyina District: 1830 m, 8 Apr 1938, Kermode 17199 ( K) . MANDALAY. Mandalay District: Swinhoe 38 ( K), ident. uncertain . MON. Mawlamyine District : type. Also reported from Tanintharyi Region by Kress et al. (2003: 71), but we have not seen material from this area.

Distribution:— Myanmar and Thailand.

Notes:— The type specimen has only semi-mature flowers, thus the misleading figure in Seidenfaden (1975c: 78). The type as illustrated by Seidenfaden shows a flower with 6 mm long sepals and a short, broad retuse lip midlobe (sepals ca. 10 mm long are the minimum in mature flowers of this species). In mature flowers, the midlobe is more rectangular. Illustrated as C. tsii X.H.Jin & H.Li by Nyan Tun (2014: 130).