Species Information - Dendrobium leptophyton

Dendrobium leptophyton Schuit. & de Vogel, Blumea 48 (2003) 509

Type: Canberra Nat. Bot. Garden cult., 2 Feb. 1994 (Clements 7280, leg. Howcroft) (holo CANB, iso CANB, NCBG).

Synonyms:

• Dockrillia delicata M.A.Clem. & D.L.Jones, Lasianthera 1 (1996) 12, fig. 4, pl. 5A & B.
  - Type: Canberra Nat. Bot. Garden cult., 2 Feb. 1994 (Clements 7280, leg. Howcroft) (holo CANB, iso CANB, NCBG).
• Non Dendrobium delicatum (F.M.Bailey) F.M.Bailey, Queensland Fl. 5 (1902) 1527

Pendulous epiphyte forming sparse clumps to about 1 m long. Aerial roots absent. Stems straight, 2-8 by 0.1-0.15 cm. Leaves linear-terete, 2-10 by 0.3-0.4 cm, erect to pendulous. Racemes 26 cm long, wiry, arising solitary from nodes at the leaf base, bearing 5-8 flowers. Pedicel 1.2-1.5 cm long, filiform. Ovary 0.1-0.2 cm long, hardly developed at anthesis. Flowers about 1.5 cm across, not opening widely, fragrant. Median sepal oblong, 0.6-0.7 by c. 0.3 cm, erect to obliquely-erect, subobtuse. Lateral sepals asymmetrically oblong-obovate, widely divergent; apex subacute. Petals very narrowly obovate, porrect to obliquely-erect; apex subacute. Lip curved in basal two-thirds, 1-1.2 cm by 0.4-0.45 cm when flattened; lateral lobes more or less elliptic, 0.7-0.8 by c. 0.13 cm, incurved; mid-lobe spreading nearly at a right angle, ovate-elliptic, 0.35-0.4 by 0.4-0.45 cm, thin-textured, with margins strongly sinuate-crispate, and apex broadly obtuse to emarginate; callus of five tall narrow ridges, becoming sinuate on the mid-lobe, the central three ridges extending to the lip apex. Column 0.3-0.35 by c. 0.2 cm, porrect from the end of the ovary, glabrous; column foot 0.45-0.55 by c. 0.1 cm, at about 120 degrees to the column, shallowly channelled, glabrous. Stigma oblong, c. 0.3 by 0.15 cm, deeply sunken. Anther c. 0.1 by 0.1 cm, with a short, decurved, lacerate rostrum. Pollinia clavate, falcate 0.08-0.09 cm long, waxy. Fruit not seen.
(after Clements & Jones, 1996).

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