Habenaria dentata (Sw.) Schltr., Repert., 2021

Ormerod, Paul, Kurzweil, Hubert & Watthana, Santi, 2021, Annotated List of Orchidaceae for Myanmar, Phytotaxa 481 (1), pp. 1-262 : 142-143

Habenaria dentata (Sw.) Schltr., Repert. Spec. Nov. Regni Veg. Beih. 4: 125, 1919

Basionym: Orchis dentata Sw., Kongl. Vetensk. Acad. Nya Handl. 21: 207, 1800.

Homotypic synonym: Platanthera dentata (Sw.) Lindl. , Gen . Sp. Orchid. Pl.: 296, 1835.

Heterotypic synonyms: Habenaria geniculata D.Don, Prodr. Fl. Nepal.: 25, 1825. Platanthera geniculata (D.Don) Lindl. ex Wall., Numer. List : no. 7042, 1832.

Thelymitra malintana Blanco, Fl. Filip. : 642, 1837. Habenaria malintana (Blanco) Merr., Sp. Blancoan. : 112, 1918. Kraenzlinorchis malintana (Blanco) Szlach., Orchidee (Hamburg) 55: 58, 2004.

Habenaria pelorioides C.S.P.Parish & Rchb. f., Trans. Linn. Soc. London 30: 139, pl. XXVII-A, 1874. Type :— MYANMAR. Mon State : Mawlamyine District, 1862, Parish 327 (holotype: W-R 1817 ; isotype: K) .

Habenaria parageniculata Tang & F.T.Wang, Bull. Fan Mem. Inst. Biol. 7: 137, 1936. Habenaria dentata (Sw.) Schltr. var. parageniculata (Tang & F.T.Wang) Aver. , Turczaninowia 9: 67, 2006. Type:— MYANMAR. Kayah State: Loikaw District, Salween Valley, Micholitz s.n. (holotype: K).

Specimens examined:— UPPER MYANMAR. Oct 1889, King s.n. [? King’s collector] ( K) . KACHIN. Myitkyina District : 1525 m, 9 Oct 1919, Farrer 1392 ( E) . CHIN. District not traced: 1980 m, 30 Sep 1910, Venning 34 ( K) ; Falam District : 1370 m, comm. 9 Oct 1923, Daun 87 ( K) ; Mindat District : 1370 m, 15 Sep 1956, Maung Gale-2 5785 p.p. ( RAF) ; same loc., 1295 m, 27 Sep 1956, Kingdon-Ward 22707 ( BM) ; same loc., 4 Nov 2002, Ling Shing Maung & Cho Cho Win 024433 ( MBK) ; same loc., 700−800 m, 4 Dec 2002, Murata et al. 024629 ( MBK) ; same loc., 750−1200 m, 5 Dec 2002, Murata et al. 025577 ( MBK) ; same loc., 1150−1200 m, 6 Dec 2002, Murata et al. 025620 ( MBK) ; same loc., 1140 m, 9 Oct 2008, Yasuda 053818 ( MBK) ; same loc., 1500 m, 12 Oct 2008, Yasuda 053638 ( MBK) ; same loc., 1200 m, 21 Oct 2008, Om Ling Htan 053642 ( MBK) ; same loc., 22 Oct 2011, Law Shein 088249 ( MBK) ; same loc., 1500 m, 4 Sep 2012, Ling Shein Man 091676 ( MBK) ; same loc., 1250 m, 13 Jan 2013, Ling Shein Mang 096179 ( MBK) . BORDER AREA CHIN – MAGWAY ( Mindat – Gangaw districts). 1000 m, 25 Oct 2011, Ling Shein Man 087681 & 087681 B ( MBK). MANDALAY. Pyinoolwin District : 1065 m, 27 Oct 1907, Bogg BG 18 ( K) ; same loc., 1065 m, 11 Oct 1908, Lace 4322 ( E) ; same loc., 1065 m, Oct 1909, Lace s.n. ( E) ; same loc., 1065 m, Sep 1911, Lace s.n. ( E) ; same loc., 1065 m, Oct 1911, Lace s.n. ( E) ; same loc., 1525 m, Oct 1912, Lace s.n. ( E) ; same loc., 365 m, Oct 1915, Smith 77 ( AMES) ; same loc., 1065 m, Bogg s.n. in Maymyo Bot. Gard. 13542 ( K) ; Kyaukse District : Wallich, Numer. List: no. 7042 p.p. ( K) ; Myingyan District: 16 Nov 2005, Khin Myo Htwe 71 ( MBK [s], TNS), fide Tanaka et al. (2015: 80); Meiktila District : 1065 m, 23 Oct 1936, Smith 16288 ( K) . SHAN. Taunggyi District : 915−1220 m, 18 Oct 1911, Robertson 440 ( K) ; same loc., 885 m, 25 Oct 1939, Dickason 9037 ( AMES) ; Kengtung District : 1370 m, Sep 1909, MacGregor 815 ( E) , ident. uncertain. KAYAH. Loikaw District: type. BAGO. Pyay District : Wallich, Numer. List: no. 7042 p.p. ( K) . WITHOUT LOCALITY. Parish 226 (not located), fide Parish (1883: 201; as H. geniculata ); 305 m, Jul 1893, Boxall s.n. ( K) ; Jul 1898, Boxall s.n. ( SING) ; 1916, Rodger 648 ( E) .

Peloric forms: SAGAING. Katha District : Nov 1908, Lace s.n. ( E) ; same loc., without collector s.n. (E). CHIN. Unspecified: Daun 84 ( K) ; Falam District : 1645 m, comm. 9 Oct 1923, Daun 83 ( K) ; Mindat District : 1500 m, 12 Nov 2008, Yasuda 053638 A ( MBK) . BORDER AREA CHIN – MAGWAY ( Mindat – Gangaw districts). 1000 m, 25 Oct 2011, Ling Shein Man 087681 A ( MBK) . MANDALAY. Pyinoolwin District : 1065 m, 11 Oct 1908, Lace 4322 ( K) ; Myingyan District : 25 Oct 2000, Tanaka et al. 020764 ( MBK) , fide Tanaka et al. (2015: 81); same loc., Nov 2010, Saw Lwin et al. MPO 034 ( SING) . SHAN. Southern part: 1910, Robertson 34 ( K) ; same loc., without collector s.n. (E). MON. Mawlamyine District: type. TANINTHARYI. Dawei District : 245 m, Sep 1961, Keenan et al. 1582 ( A, E) .

Distribution:— Northern India, the Himalayas, Myanmar, Thailand, Indochina, China, Taiwan, Japan, Korea and southwards to Peninsular Malaysia and the Philippines.

Notes:— We agree with the suggestion that H. malintana is a peloric form of this species. The collection Daun 87 (K) was incorrectly listed as H. plantaginea by Jayaweera (1981: 357).

Habenaria dentirostrata Tang & F.T.Wang, Bull. Fan Mem. Inst. Biol. 7: 137, 1936. Type:— MYANMAR. Mandalay Region: Meiktila District , 670 m, 7 Oct 1929, Tha Myaing 263 (holotype: K; isotype: E)

Homotypic synonym: Kraenzlinorchis dentirostrata (Tang & F.T.Wang) Szlach., Orchidee (Hamburg) 55: 58, 2004.

Specimens examined:— MANDALAY. Myingyan District: Nov 2010, Saw Lwin et al. MPO 030 ( SING); Meiktila District : type .

Distribution:— Central Myanmar,? Thailand and Indochina.