Prev Taxon: Genus Dendrobium section Cadetia
Current Genus: Genus Dendrobium section Cadetia subsection Cadetia
Dendrobium micronephelium
Dendrobium micronephelium J.J.Sm., Repert. Spec. Nov. Regni Veg. 12 (1913) 28
Type: Gjellerup 996 (syn BO); 288 (syn AMES, K, P); Bogor cult. s.n. (syn L 2x).
Synonyms:
- Cadetia micronephelium (J.J.Sm.) Schltr., Bot. Jahrb. Syst. 58 (1922) 91.
Rhizome very short. Stems crowded, slender, gradually a little dilated towards the apex, 2.5-7 cm by 1.7-2.4 mm, 1-leaved. Leaves erect, linear-lanceolate, subfalcate, 3.5-4.8 by 0.33-0.68 cm, rigidly carnose, apex unequally bidentate. Inflorescences terminal from the leaf axil, 1-flowered, spathe 0.2 cm long. Pedicel 0.8 cm long, almost glabrous, with a few sparse warts near the apex; ovary 0.2 cm long, densely verrucose. Flower c. 0.7 cm across. Dorsal sepal subelliptic, 0.45 cm by 3 mm, apex obtuse. Lateral sepals obliquely subovate-elliptic, 0.45 cm by 3.7 mm, apex rounded; mentum subcylindrical, 0.33 cm long, retuse. Petals erect-patent, linear, weakly spathulate, 0.47 cm by 0.75 mm, apex acute to apiculate. Lip clawed, 3-lobed, pubescent on the claw, the blade 0.44 cm long, across the lateral lobes 0.33 cm wide; lateral lobes small, obliquely triangular, acutely acuminate; midlobe recurved, transversely suboblong, 0.23 by 0.48 cm, glabrous, carnose, apex broadly rounded. Column 0.2 cm long, pubescent in front, stelidia oblong-triangular, sometimes dentate at apex, filament triangular, on either side with a subulate tooth; column-foot 0.33 cm long. Fruit with strongly recurved pedicel, nodding, ellipsoid, densely conico-verrucose, 0.95 by 0.67 cm.
(after Smith, 1916).
Flower white, midlobe of lip yellowish white, lateral lobes below with purple margins, column in upper part tinged and spotted with purple.
Epiphyte in rainforest, also lithophytic on rocks along a river. Altitude 40-300 m.
New Guinea (endemic).
Papua New Guinea (Jayapura Regency).
Warm growing epiphyte.
February, July.
Dendrobium micronephelium J.J.Sm. is a close relative of Dendrobium umbellatum (Gaudich.) Rchb.f., from which it is mainly distinguished by the ovary which is covered with small warts, not with pointed hair-like appendages.
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Dendrobium micronephelium
overview of Dendrobium micronephelium J.J.Sm.
Dendrobium micronephelium
Dendrobium micronephelium J.J.Sm., drawing J.J. Smith, based on Bogor cult. (Gjellerup) 7
Dendrobium micronephelium
Dendrobium micronephelium J.J.Sm., type specimen: Bogor cult. s.n. (syn L)