Species Information - Dendrobium kruizingae

Dendrobium kruizingae de Vogel, E.Winkel & Vugt, Malesian Orchid J. 18: 108. 2016, fig. 6.

Type: Leiden cult. 20081568 (E.F. de Vogel & Judith Raka) (holo LAE, iso L).

Synonyms:

Epiphyte, (sub)erect. Roots present on the base of the rhizomes only, glabrous, branched, terete, up to 0.05 cm wide. Rhizome branches tufted, elongated, suberect to straggling, stem-like, sparsely branching, filiform, flexuose, to 17 cm long, glabrous; internodes terete, hardly widening to the top, 1.5–2 by c. 0.2 cm, each covered almost entirely by a long persistent, dry, membranous scale leaf from the node immediately below. Pseudobulbs 1-leaved, fusiform, not laterally flattened, 1.8–3.5 by 0.4–1.3 by 0.35–0.4 cm, covered (almost) entirely by a long-persistent, dried, membranous scale leaf from the node immediately below. Leaves sessile; leaf blade ovate-linear-lanceolate, 4–6.2 by 0.8–0.9 cm (index 5–7), thin, rather stiff; base narrowly rounded; apex unequally bilobulate, lobules acute. Inflorescences in fascicles from the top of the pseudobulb on the abaxial side of the leaf, very short, 1-flowered; the base covered by a few tubular or nontubular scale leaves c. 0.7–0.9 cm long including a subulate mucro up to 0.2 cm long, their outer surface with scattered flakey scale hairs; peduncle c. 0.15 cm long, with similar scales. Pedicel-and ovary c. 0.6 cm long, slender, shallowly 6-grooved, with flakey scales; ovary distinctly widening to the top. Flowers opening widely, c. 1.15–1.25 cm across. Sepals distinctly recurved, broadly sessile, dorsally with scattered flakey scale hairs, more densely so on base and apical part. Median sepal narrowly triangular, c. 0.45 by 0.25 cm; apex acute. Lateral sepals narrowly triangular, slightly oblique, c. 0.75 by 0.3 cm; apex acute; mentum spurlike, dorso-ventrally flattened, c. 0.3 by 0.15 by 0.1 cm, its apex blunt, shallowly retuse, with sparse flakey scale hairs. Petals rather broadly attached, lanceolate, c. 0.45 by 0.12 cm; apex shortly acuminate; glabrous. Lip rather narrowly attached, spathulate, c. 0.8 by 0.5 cm; claw c. rectangular, c. 0.4 by 0.2 mm, median swollen; blade [midlobe] about circular in outline, c. 0.4 by 0.5 cm; median with 3 low swollen ridges; margins turned upwards, swollen and widely undulating with 4 or 5 curves, the curve at the base smaller, apex deeply and widely emarginate, with a small, broadly triangular mucro. Column in lateral view c. 0.2 by 0.12 cm, c. 0.2 cm wide; clinandrium with 5 small triangular teeth; column-foot c. 0.12 by 0. 2 cm; stigma concave, semi-elliptic, in the basal part with 2 minute teeth. Anther cucullate, in outline c. cordate, c. 0.12 by 0.12 cm; apex broadly rounded, slightly minutely papillose, back margin 2-lobed, deeply retuse; pollinia c. banana shaped, convex above, flat below, c. 0.1 by 0.03 cm.
(after De Vogel, Winkel & Van Vugt 2016)

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