Dendrobium praecinctum Rchb.

Ormerod, Paul, Kurzweil, Hubert & Watthana, Santi, 2021, Annotated List of Orchidaceae for Myanmar, Phytotaxa 481 (1), pp. 1-262 : 115

Dendrobium praecinctum Rchb. f., Gard. Chron., n.s., 7: 750, 1877

Homotypic synonym: Callista praecincta (Rchb.f.) Kuntze, Revis. Gen . Pl. 2: 655, 1891.

Specimens examined:— KACHIN. Putao District: fide Nyan Tun (2014: 254, as Dendrobium sp. ). MANDALAY. Myingyan District: Saw Lwin SL s.n., photo. SHAN. Taunggyi District: Saw Lwin SL 49 (RAF).

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

Dendrobium praetermissum Seidenf., Contr. Orchid Fl. Thailand 13: 34, 1997. Type :— MYANMAR. Tenasserim: icon. Parish 354 (holotype: K)

Homotypic synonym: Eurycaulis praetermissus (Seidenf.) M.A.Clem. , Telopea 10: 285, 2003.

Dendrobium lamellatum auct. non (Blume) Lindl.: Rchb.f., Otia Bot. Hamburg. 48, 1878 p.p.

Dendrobium compressum auct. non Lindl.: Seidenf., Contr. Orchid Fl. Thailand 13: 34, fig. 6I, 1997.

Specimens examined:— TENASSERIM. Type. MON. Mawlamyine District: icon. Day s.n. (Album no. 121, 1882) .

Distribution:— Southern Myanmar and Thailand.

Notes:— Seidenfaden (1997: 34) made Parish’s drawing the type of this species but argued that the actual plant specimen with the same number was different and represented D. compressum Lindl. In our opinion, the drawing and the specimen represent the same species. Variation in details of the labellum of the related D. platygastrium Rchb. f. was observed by O’Byrne (1994: 282), which illustrates that too much reliance has been placed on such details in this complex.

Dendrobium × primulardii Horridge, Gard. Chron., ser. 3, 67: 308, 1920. Type:— MYANMAR. Without locality: 1914, imp. Sander & Sons s.n., cult. Horridge s.n. (holotype: K)

Homotypic synonym: Dendrobium venustum Arthur, Gard. Chron. , ser. 3, 67: 239, 1920, nom. illeg. [non Teijsm. & Binn. 1864].

Specimen examined:— WITHOUT LOCALITY. Type .

Distribution:— Endemic.

Notes:— A supposed natural hybrid between D. primulinum and D. aphyllum (as D. pierardii ; Rolfe 1916b: 96).