Bulbophyllum lagaroglossum

Bulbophyllum lagaroglossum J.J.Verm., Nordic J. Bot. 26 (2008) 154, fig. 14

Type: Yumte 94 (holo L), from Indonesia, Papua, Bird's head Peninsula

Roots sprouting near the base of the rhizome, growing backwards along it until reaching the substrate. Rhizome up to 110 cm long, 1.8-2 mm in diameter, sections between pseudobulbs 0.9-2 cm long, pendulous, bracts persistent, surface finely papillose. Pseudobulbs 0.4-0.5 by 0.2-0.25 cm, distant, shortly cylindrical. Leaves: petiole 0.2-0.3 cm long; blade 2.4-3.6 by 1-2 cm, index (length/width) 1.8-2.4, ovate, acute. Inflorescense clustered, dense racemes c. 1.6 cm long, c. 5-flowered; peduncle c. 1 cm long, porrect; non-floriferous bracts c. 3, the longest c. 2.4 mm long; rachis c. 0.3 cm long, porrect; floral bracts 1.8-2 mm long, tubular, acute. Flowers non-resupinate, probably opening widely, one at the time. Pedicel-with-ovary c. 4 mm long, basal node on a c. 2.2 mm long stump. Dorsal sepal c. 3.6 by 2.4 mm, index c. 1.5, spreading, ovate, apiculate, margins increasingly papillose distally, base broadly attached, rather thin, surface glabrous. Lateral sepals c. 3 by 2.2 mm, index 1.3-1.4, free, obliquely ovate, upper margin glabrous, lower papillose, otherwise as the dorsal sepal. Petals c. 1.3 by 1 mm, index c. 1.3, recurved, ovate, obtuse, margins finely erose-papillose, base narrowly attached, thin, surface glabrous. Lip with prominent basal auricles; c. 2.7 by 1 mm, index c. 2.7, recurved proximally and sharply incurved at about two thirds of its length, ovate-oblong, slightly tapering towards the tip, obtuse, margins densely set with papillae which grade into large vesicles about half-way along the lip, thick, surface more or less glabrous but increasingly papillose towards the margins; adaxially concave near the base, with three ridges, the low, narrow, rounded median starting at the base and ending just before reaching half-way along the length of the lip; the rather high, rounded lateral ridges starting in front of the auricles, converging until they meet over the median ridge, then slightly diverging again and ending at the same level as the median ridge, top part of the lip only slightly convex; abaxially with a retuse ridge near the base, otherwise slightly convex, grooved along the median line. Column c. 0.8 mm long; stigma ovate, without keels inside, with a rather distinct, rounded callus just below its proximal margin; foot tapering distally; stelidia c. 0.3 mm long, about triangular, deltoid, acuminate, with a small, antrorse, deltoid, obtuse tooth along the upper margin, with an antrorse, triangular, acute tooth along the lower margin; anther-cap abaxially with a narrow crest proximally, surface finely papillose, front margin drawn out into a rounded beak; pollinia 2, ovoid, somewhat flattened; no appendages. (After Vermeulen, 2008)

Colours: Sepals and petals greenish yellow, lip dark purple, column greenish yellow, anther-cap yellow.

Distribution: Malesia (New Guinea).

Distribution in New Guinea: Papua New Guinea; see map 96-2335M.jpg.