Dendrobium formosum Roxb. ex Lindl.

Ormerod, Paul, Kurzweil, Hubert & Watthana, Santi, 2021, Annotated List of Orchidaceae for Myanmar, Phytotaxa 481 (1), pp. 1-262 : 102-103

Dendrobium formosum Roxb. ex Lindl. in N.Wallich, Pl. Asiat. Rar. 1: 34, 1830

Homotypic synonym: Callista formosa (Roxb. ex Lindl.) Kuntze, Revis. Gen . Pl. 2: 654, 1891.

Heterotypic synonym: Dendrobium formosum Roxb. ex Lindl. var. giganteum W.Bull, Proc. Roy. Hort. Soc. London 4: 175, 1864.

Specimens examined:— KACHIN. Myitkyina District : 3 Mar 2009, Kyaw Khaing 0081 ( TNS [s]) . CHIN. Falam District : 610−2130 m, comm. 9 Oct 1923, Daun 9 ( K) .? MANDALAY.? Pyinoolwin District : Apr 1934, Dickason 5776 ( AMES) . KAYIN. Kawkareik District : 280 m, 30 Apr 1946, Bloembergen 45 ( SING) ; same loc., 8−11 May 1946, Kostermans 402 ( SING) . RAKHINE. Kyaukpyu District : 6 May 1945, Wallace 136 ( BM), det. Alsterlund-Green. BAGO. Bago District: Hamilton s.n. ( BM) . YANGON. Central part: 30 m, 13 Feb 1948, Po Khant 98 ( RAF) , det. herbarium DD; same loc., Balakrishnan 1481 ( DD) , fide Kumar & Gale (2020: 50). MON. Thaton District: Wallich, Numer. List : no. 1998/3 (not located, possibly K-W) ; Mawlamyine District: Parish 6 (not located), fide Parish (1883: 193); same loc., Griffith 350 (not located, possibly K-LINDL) , fide Lindley (1858: 16); same loc., Lobb s.n. ( K) . TANINTHARYI. Dawei District: Gomez s.n. in Wallich , Numer. List : no. 1998/4 (not located, possibly K-W) ; same loc., Apr 1900, Mokim 634 ( BM, P) . NOT TRACED. Wallich 136 ( BM) . Reported from Sagaing Region by Kress et al. (2003: 73), but we have not seen any material from this area.

Distribution:— India, the Himalayas, Myanmar, Thailand and possibly Indochina.

Dendrobium fugax Rchb. f., Gard. Chron. 1871: 1257, 1871. Type :—’INDIA’ (? Myanmar). Cult. Day s.n. (holotype: W-R 54318 & 54319; icon. K)

Homotypic synonyms: Callista fugax (Rchb.f.) Kuntze, Revis. Gen . Pl. 2: 654, 1891. Flickingeria fugax (Rchb.f.) Seidenf., Dansk Bot. Ark. 34 (1): 46, 1980.

Heterotypic synonym: Dendrobium sordidum King & Pantl., J. Asiat. Soc. Bengal, Pt. 2, Nat . Hist. 66: 583, 1897. Type:— MYANMAR. Mon State: Mawlamyine District, cult. Calcutta Bot. Gard. ex Peche s.n. (holotype: CAL).

Specimens examined:—? MYANMAR. Type. MANDALAY. Pyinoolwin District: Robertson s.n. ( K spirit coll. no. 19383); same loc., Maymyo Bot. Gard. 13504 ( K) . KAYIN. Kawkareik District : O’Byrne s.n., photo, fide SOF (2019) [as Flickingeria fugax ] . MON. Mawlamyine District: type; same loc., cult. Sander s.n. ( K) .

Distribution:— The eastern Himalayas, northeastern India, Myanmar and Thailand.

Note:— Seidenfaden (1980: 46) ascribed origin of the type material to Parish (as Flickingeria fugax ), but we are not so sure about this.