Corybas vespertilionis
Plant: Small, 8 cm high terrestrial.
Tuber: ovoid, 8 by 5 mm.
Stem: 30 mm high, twisted, narrowly 3-winged, glabrous.
Cataphyll: tubular, 8 mm long, acute, margins ciliate, otherwise glabrous.
Leaves: broadly ovate-cordate, 22 by 15 mm, acute and plicate at tip, base cordate, margin deeply crinkled and wavy, midrib impressed above, prominulous below, basal nerves 2 on either side of midrib, only inner one reaching tip of limb, suprabasal nerves 1 or 2 on either side of midrib, connate to inner basal nerve; with scattered pellucid lenticels.
Pedicel: 3 mm long, glabrous.
Bract: linear but ovate at base, 15 by 2.5 mm, caudate, glabrous.
Ovary: narrowly claviform, 13 by 2.5 mm, 3-ribbed, with antrorse, subimpressed long papillae on ribs.
Median sepal: fishtail-like, from a 5 mm wide base widely flaring out into two, 17 by 10 mm large lobes, margin fimbriate-denticulate, distal margin crinkled, midrib well developed, lateral nerves one on either side of base, 8-nerved near margin, hispidulous-papillate on outside of hood on nerves only.
Lateral sepals: subulate, 7 mm long, glabrous, petals slightly shorter than sepals.
Lateral petals: subulate, 7 mm long, glabrous, petals slightly shorter than sepals. (6?)
Lip: heavily coloured with red and deep purple on white ground, tubular in basal part, ventrally inflated, limb 2-lobed, lobes orbicular-hoodshaped, 10 by 8 mm, margins scarious denticulate-ciliate, with a median, anvilshaped, longitudinally grooved boss, between boss and the incised tip with a median line of hairs, margin denticulate-fimbriate.
Spurs: not known
Capsule: not seen.
Type: Brass 12477 (L).
Distribution: Idenburg River, 8 km SW of Bernhard Camp
Ecology: In semishade on a ferny roadside, in lowland rainforest
Elevation: 850 m