Dendrobium tubiflorum
Dendrobium tubiflorum J.J.Sm., Bull. Jard. Bot. Buitenzorg, sér. 2, 13 (1914) 66; Nova Guinea 12, 3 (1916) 348, t. 127, fig. 232.
Type: Pulle 1118 (syn BO, isosyn L); 1189 (syn BO).
Synonyms:
- Dendrobium tubiflorum J.J.Sm. f. albidiflorum J.J.Sm., Nova Guinea 12, 4 (1916) 349.
- Type: Pulle 1189 (holo BO, iso L). - Pedilonum tubiflorum (J.J.Sm.) Rauschert, Feddes Repert. 94 (1983) 464.
- Chromatotriccum tubiflorum (J.J.Sm.) M.A.Clem. & D.L.Jones, Orchadian 13 (2002) 496
Stems crowded, unbranched, 40 cm long, internodes 1.6-2.5 cm long. Leaf sheaths when dried with prominent veines. Leaves patent, twisted at the base so as to lie in one plane, subovate-lanceolate, 6.25-10 by 1.9-2.6 cm, rigidly papyraceous, apex acuminate, mucronate, with a filiform apicule. Inflorescences racemose, 0.7-1.1 cm long, sessile, 6-10-flowered. Floral bracts broadly subovate, 0.8 cm long, apex long acuminate. Pedicel 3.3 cm long; ovary 1.1 cm long, clavate, obtusely triangular in cross-section. Flowers 3 cm long. Dorsal sepal 0.7 cm by 4.3 mm; mentum subcylindrical, 2.4 cm long. Petals 0.63-0.65 cm by 3 mm, margins near apex very minutely erose. Lip much shorter than the column, when flattened 2 by 0.83 cm, claw adnate to the column-foot for 1.25 cm, at c. 1/3 above the base with a transverse thickening, apex cucullate, in the middle fimbriate. Column 0.25 cm long; column-foot 2.4 cm long.
(after Smith, 1916).
Flower light rose-violet, lip almost white. A form with all-white or pale yellowish green flowers is known (f. albidiflorum).
Epiphyte in primary and secondary montane forest. Altitude 1200 to 1300 m.
New Guinea (endemic).
Papua (Oroh Valley).
Intermediate growing epiphyte.
February.
Dendrobium tubiflorum is very similar in habit to Dendrobium lawesii, but appears to be distinct by the lip being much shorter than the column, while in D. lawesii the lip extends to the apex of the column.
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Dendrobium tubiflorum
overview
Dendrobium tubiflorum
Dendrobium tubiflorum J.J.Sm., drawing J.J. Smith, based on Pulle 1118
Dendrobium tubiflorum
Dendrobium tubiflorum J.J.Sm., drawing J.J. Smith, based on Pulle 1118
Dendrobium tubiflorum
Dendrobium tubiflorum J.J.Sm., isotype specimen: Pulle 1118 (L)
Dendrobium tubiflorum
Dendrobium tubiflorum J.J.Sm., detail of isotype specimen: Pulle 1118 (L)
Dendrobium tubiflorum
Dendrobium tubiflorum J.J.Sm. f. albidiflorum J.J.Sm., isotype specimen: Pulle 1189 (L)
Dendrobium tubiflorum
Dendrobium tubiflorum J.J.Sm. f. albidiflorum J.J.Sm., detail of isotype specimen: Pulle 1189 (L)