Dendrobium longicornu Lindl.

Ormerod, Paul, Kurzweil, Hubert & Watthana, Santi, 2021, Annotated List of Orchidaceae for Myanmar, Phytotaxa 481 (1), pp. 1-262 : 109-110

Dendrobium longicornu Lindl. , Edwards’s Bot. Reg. 16: t. 1315, 1830

Homotypic synonym: Callista longicornis (Lindl.) Kuntze, Revis. Gen . Pl. 2: 655, 1891.

Specimens examined:— KACHIN. Unspecified: Toppin 142 ( K) , det. X. H. Jin ; district not traced: 915−1220 m, 14 Aug 1919, Kingdon-Ward 3531 ( E) ; Putao District : 1220–1525 m, 24 Nov 1937, Kingdon-Ward 13502 ( BM) ; same loc., 1220 m, 12 Aug 1953, Kingdon-Ward 21258 ( BM) ; same loc., 1830–2135 m, 25 Sep 1953, Kingdon-Ward 21380 ( BM) ; same loc., Dec 2015, Saw Lwin KSL 1035 ( RAF) ; same loc., 1990–2035 m, 18 Oct 2016, Thet Yu Nwe et al. 357 ( NY) ; same loc., 2065 m, 18 Oct 2016, Armstrong et al. 1911 ( NY, SING) . CHIN. Falam District : 1830 m, Oct 1910, Venning 52 ( K) , det. J. J. Wood; Mindat District : 2745 m, 10 Aug 1956, Kingdon-Ward 22562 ( BM) ; same loc., 1830–2135 m, 24 Oct 1956, Kingdon-Ward 22742 ( BM) ; same loc., 2450−2750 m, 3 Jun 2002, Tanaka et al. 023499 ( MBK) ; same loc., 2700−3050 m, 3 Dec 2002, Murata et al. 024624 ( MBK) ; same loc., 3 Dec 2002, Murata et al. 025495 ( MBK, TI) ; same loc., 20 Aug 2007, Tanaka s.n. ( TNS [s]), ident. uncertain; same loc., 29 Oct 2008, Yasuda 060015 ( MBK) ; same loc., 10 Dec 2008, Matsumoto & Hong Mang 053822 ( MBK) ; same loc., 2745 m, 19 Nov 2011, Ling Shein Man 087846 ( MBK) ; same loc., 2400 m, 5 Dec 2012, Fujikawa et al. 090921 ( MBK) ; same loc., without collector s.n. (SING). BORDER AREA NAY PYI TAW – SHAN; TANINTHARYI. Dawei District (both fide Aung et al. 2020: 80) .

Distribution:— The Himalayas, northeastern India, Myanmar, Vietnam and southwestern and southern China.

Dendrobium luteolum Bateman, Gard. Chron. 1864: 269, 1864 . Type :— MYANMAR. Mon State : Mawlamyine District, Parish 139 (holotype: K)

Homotypic synonym: Callista luteola (Bateman) Kuntze, Revis. Gen . Pl. 2: 655, 1891.

Heterotypic synonyms: Dendrobium luteolum Bateman var. chlorocentrum Rchb. f., Gard. Chron., n.s., 19: 340, 1883. Dendrobium luteolum Bateman subvar. chlorocentrum (Rchb.f.) H.J.Veitch, Man. Orch. Pl. 3: 57, 1888. Type:— MYANMAR. Without locality: cult. Williams s.n. (holotype: W-R).

Dendrobium luteolum Bateman var. superbum Rolfe, Orchid Rev. 3: 73, 1895. Type:— MYANMAR. Without locality: cult. Sander & Co. s.n. (not located).

Specimens examined:— MON. Mawlamyine District: type; same loc., cult. Low s.n. ( K). WITHOUT LOCALITY. Types; without collector s.n. ( AMES). Reported from Chin State and Tanintharyi Region by Kress et al. (2003: 74), but we have not seen material from these areas.

Distribution:— Endemic.

Note:— An attractive species that has recently reappeared in cultivation.