Habenaria tonkinensis Seidenf., Dansk Bot. Ark.

Ormerod, Paul, Kurzweil, Hubert & Watthana, Santi, 2021, Annotated List of Orchidaceae for Myanmar, Phytotaxa 481 (1), pp. 1-262 : 149

Habenaria tonkinensis Seidenf., Dansk Bot. Ark. 31: 114, 1977

Specimen examined:— KACHIN. Putao District: fide Aung et al. (2020: 87). Distribution:— Northern Myanmar, Indochina and southwestern China.

Habenaria trichosantha Lindl. , Gen . Sp. Orchid. Pl.: 324, 1835. Type:— MYANMAR. Mandalay Region: Kyaukse District , 1826, Wallich, Numer. List: no. 7028 (holotype: K-LINDL)

Homotypic synonym: Fimbrorchis trichosantha (Lindl.) Szlach., Orchidee (Hamburg) 55: 491, 2004.

Specimens examined:— UPPER MYANMAR. Sep 1908, Hobart s.n. ( BM) . CHIN. Falam District : 1830 m, 29 Sep 1910, Venning 32 ( K) ; same loc., 1980 m, 3 Oct 1910, Venning 39 ( K) ; same loc., 2010 m, 10 Oct 1910, Venning 44 ( K) ; Mindat District: 22 Oct 2013, Kim s.n., photo; same loc., fide Kang et al. (2017a: 82). MANDALAY. Pyinoolwin District : 1065 m, 25 Sep 1927, Bogg BG 11 ( K) ; same loc., Sep−Oct 1935, Bogg s.n. in Maymyo Bot. Gard. 13514 ( K) ; Kyaukse District: type; Myingyan District : Oct 1935, Dickason 5466 ( AMES) . SHAN. Taunggyi District : 500 m, 1 Sep 2014, Seo et al. 100655 ( MBK) ; same loc., 395 m, 12 Sep 2015, Baba et al. 103104 ( MBK) . MON. Mawlamyine District: Parish 219 ( W) ; same loc., Gilbert s.n. ( W) ; same loc., Brandis s.n. ( CAL) . WITHOUT LOCALITY. Boxall s.n. ( K) .

Distribution:— Eastern Himalayas, Myanmar and Thailand.

Note:— This species is the type of Fimbrorchis Szlach.

Habenaria triquetra Rolfe, Bull. Misc. Inform. Kew 1906: 87, 1906 . Type:— MYANMAR. Shan State: Hildebrand s.n. (holotype: K)

Specimen examined:— SHAN. Unspecified : type. Distribution:— Endemic .

Habenaria vidua C.S.P.Parish & Rchb. f., Trans. Linn. Soc. London 30: 140, 1874. Types:— MYANMAR. Mon State: Mawlamyine District, Parish 223 (lectotype K, designated here; isolectotype: W-R 1618; icon. W-R 11146). Syntype: same loc., Parish 116 ( K)

Specimens examined:— KAYAH. Loikaw District : 1320 m, 21 Aug 2017, Tanaka et al. MY2655 ( TNS) . MON. Mawlamyine District : types cited. Also reported from Tanintharyi Region by Kress et al. (2003: 81), but we have not seen material from this area.

Distribution:— Myanmar and Thailand.

Notes:— Seidenfaden designated Parish 223 as type, but this was not an effective lectotypification as he did not specify the herbarium where the type is held (he cited two herbaria with this collection). We therefore designate the specimen at K as lectotype. W-R 1618 has both Parish numbers written on it plus a plant and a leaf; it is not possible to ascertain which number goes with which specimen. A photo identified as H. propinquior Rchb. f. (an Australian species) in Nyan Tun (2014: 305) seems to represent H. vidua .