Species Information - Dendrobium guttulatum

Dendrobium guttulatum Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1912) 473; 21 (1923) t. 159

Type: Schlechter 19892 (holo B, lost); para: 16528 (B, lost; AMES, BO, K, L, S).

Synonyms:

• Diplocaulobium guttulatum (Schltr.) A.D.Hawkes, Lloydia 20 (1957) 128.

IN PREPARATION. THIS DESCRIPTION REFERS TO THE RIGHT HAND SPECIMEN OF SCHLECHTER'S FIG. 598 WHICH BELONGS TO SUBSECTION DIPLOCAULOBIUM

Rhizome short, roots elongated, filiform, flexuose, glabrous. Pseudobulbs crowded, 1-leaved, slender, to the base obclavate, 15-23 by 1 (at the base) to 0.2-0.3 cm (near the apex). Leaves oblong, 5-7 by 1.4-1.6 cm, apex obtuse, bilobulate. Inflorescences arising in succession from the apex of the pseudobulb, 1-flowered, spathe laterally compressed, to c. 1 cm long, acute. Floral bract deltoid, minute. Pedicel and ovary 2.5-3 cm long, slender, glabrous. Flower resupinated, c. 6 cm across. Dorsal sepal lanceolate, narrowing to the elongated apex, 3 cm long. Lateral sepals obliquely lanceolate, narrowing to the elongated apex, widened to the base, 3 cm long; mentum 3 mm long, obtuse. Petals obliquely linear-lanceolate, narrowing to the elongated apex, 3 cm long. Lip 3-lobed in basal fourth, 1.2 by 0.4 (across lateral lobes) to 0.6 cm (across midlobe), cuneate at the base, with two parallel glabrous keels extending from the base to near the apex, the keels undulate and more widely separated on the claw of the midlobe, converging on the blade of the midlobe, in between on the claw with an elongated farinose callus; lateral lobes short, obliquely oblong, obtuse; midlobe reniform with an oblong claw, margins ciliate, apex broadly obtuse. Column short, clinandrium 3-lobulate, the median lobule tooth-like, the laterals short, serrulate; column-foot 0.3 cm long. Anther reniform-cucullate, glabrous, in front subretuse, at the back with a small hump.
(after Schlechter, 1912).

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