Corybas aberrans P.Royen, Phanerog. Monogr. 16 (1983) 94, fig. 25
Type: Carr 16913 (holo L; iso BISH)
Small, 3-12 cm high terrestrial. Tuber ovoid or ellipsoid, 0.2-0.4 by 0.2-0.35 cm. Stem 2-11 cm long, 3-ribbed, glabrous. Cataphyll funnel-shaped, 0.35-0.7 cm long, acuminate, glabrous. Leaves triangular, ovate, or cordate-ovate, 0.8-1.6 by 0.8-1.4 cm, subulate-apiculate, at the base broadly cuneate, mid-rib sunken above, prominent below and stronger so in the basal part, basal nerves 3 on either side of mid-rib but only the inner one reaching apical part of leaf, outer one very short, cross-veins 3 or 4 on either side of mid-rib, venation sparse, transverse. Pedicel 0.15-0.2 cm long. Floral bract narrowly ovate, 0.45-0.5 by 0.1 cm, acute, glabrous. Ovary very narrowly cylindrical, 1.2 by 0.15 cm, 6-winged, with scattered laciniae, several so in the apical part and these often branched. Median sepal from a widely obovate, 0.9 by 0.3 cm large, boat-shaped claw hood-like widened, hood 0.8 by 0.6 cm, claw 3-nerved at the base, hood 11-nerved, all nerves crested on hood only but inner 3 crested in apical part of claw also, mid-rib in apical part of hood with a few triangular laciniae. Lateral sepals and petals linear, 0.15 cm long, acute, without nerves, glabrous. Lip from a slender, tubular-funnel-shaped, 0.8 by 0.3 cm large, basal part abruptly curving downward and spreading out into a broadly elliptic, 0.8 by 0.5 cm large blade, margin coarsely fimbriate-laciniate in apical part only, 3-nerved at the base, 15-nerved near margin, with scattered hispid hairs on inside in a narrow band along margin; spurs oblong-conoid, 0.1 cm long, glabrous. Capsule not seen. (After Van Royen, 1983).