Corybas subalpinus P. Royen

Plant: Small, 8 cm high, terrestrial or epiphyte. 

Tuber: globose, 3 mm across.  

Stem: white, 3.5 mm long, 3-sided, narrowly winged, glabrous. 

Cataphyll: tubular, 6 mm long, acuminate, glabrous. 

Leaves: dark green with white veins above, dark purple below and midrib white, cordate or triangular-ovate, 15 - 18 (- 30) by 10 - 14(- 16) mm, acute, base cuneate, midrib impressed above, prominulous below, basal nerves 2 on either side of midrib, only inner one reaching apical part, suprabasal nerves 6 on either side of midrib, connate to inner basal nerve, margin wrinkled; with numerous pellucid lenticels. 

Pedicel: 2 mm long, glabrous. 

Bract: linear, ovate at base, 7 - 15 mm long, subulate in apical part, glabrous. 

Ovary: pink, curved cylindric-claviform, 5 by 2 mm, 6-ribbed, glabrous.  

Median sepal: dark purple, 22 - 25 mm long, from a narrow boatshaped base gradually widening and 6 - 10 mm wide in apical third, above that subabruptly hoodshaped widened to 32 mm, rounded and folded at tip, many-nerved. 

Lateral sepals: glabrous, 5 - 11 mm long, sepals shorter than petals (?). 

Lateral petals: glabrous, 5 - 11 mm long, sepals shorter than petals. (assumed reversed, petals 5-8?)

Lip: white with dark purple spots and stripes on inside, tubular in basal part, abruptly curved downward and spreading into an orbicular, 7- 10 mm wide limb, tube ventrally inflated and laterally compressed, margin long-fimbriate but towards the lateral parts these hairs also on inside along margin

Boss: globose-ovoid, 6 by 3 by 3 mm 

Spurs: conoid or cylindric, 2 - 3 mm long, obtuse.   

Capsule: not seen.

Type: van Royen NGF 16151 (L).

Distribution: Mount Enggom (van Royen NGF 16151); above Keglsugl (Millar NGF 23171, Wade ANU 7562).

Ecology: In moss cushions at base of shrubs in mossy upper montane forests and subalpine shrubberies on wet muddy slopes 

Elevation: 2590 - 3050 m