Dendrobium Sw.
III. Dendrobium section Plicatiles
-
Rhizome elongate, creeping and rooting along its length or more frequently erect and shrubby and rooting mainly in the basal part, sometimes thin and pendulous.
-
Pseudobulbs distant, usually of a few internodes of which only the upper one is swollen, usually laterally flattened, sometimes highly reduced and slightly swollen, one-leaved at apex.
-
Leaves not sheathing at base.
-
Inflorescence one-flowered, from apex of pseudobulb, or laterally just below apex, or both.
-
Flowers ephemeral; mentum well-developed but not spur-like.
-
Labellum flexibly attached to apex of column foot, sometimes adnate to column foot, usually distinctly trilobed, usually with lamellate and often wavy keels.
This section is represented by single species at Sindhudurg district
Dendrobium nodosum Dalzell
In Hooker's J. Bot. Kew Gard. Misc. 4: 292 (1852);
-
Desmotrichum nodosum (Dalzell) Tang & F.T.Wang in Acta Phytotax. Sin. 1: 83 (1951)
-
Flickingeria nodosa (Dalzell) Seidenf. in Dansk Bot. Ark. 34: 41 (1980)
Ecology: This species is endemic to western ghats & epiphytic found growing on Careya arborea tree in semi evergreen forest
This specimen is observed on Amboli Kolhapur road near Suleran
Pseudobulbs 4x1cm, linear-oblong, fusiform, green or yellow. flattened laterally, yellowish or dirty brownish green, ribbed when mature
Leaf single 10–11.5 × 2–2.5 cm, sessile, oblong–elliptic, obtuse, arising from the tip of pseudobulb
Inflorescence one flowered, from apex of pseudobulb.
Flower 2cm across, white pedicellate bracteate, lasting for few hours; ovary with pedicel 11 mm long. Bracts 4 mm long, oblong–lanceolate.
Bracts 5x4mm, semi amplexicaul, oblong lanceolate
Sepals & Petals similar, somewhat fleshy, white, tinged with yellow at the base & apex , oblong, acute or obtuse;
Sepals similar 10-12x4-5mm, faintly 5-nerved.
Petals 10x3mm, smaller & narrow, faintly 3 nerved, subfalcate
Mentum 5 mm long, blunt, slightly retuse.
Labellum 14mm, oblong–obovate, decurved about middle, concave, 3-lobed; side lobes oblong, 8 × 2 mm, obtuse; midlobe contracted and coarsely erose-crisped at its base; disc with 2 fleshy lamellae, reddish, along the centre to the end of the lateral lobes.
Column short, with a small foot; anther ovate; Pollinia 1.5 mm, yellow, narrowly oblong, stigmatic surface
ovate
Flowering: July