Citation: Hook. f., Fl. Antarct. 1:69 (1844).

Synonymy: C. muelleri Fitzg., Aust. Orchids 2, 2 (1885). , Simpliglottis cornuta

Common name: Green bird-orchid.

Description:
Stem green, at flowering rarely exceeding 5 cm; leaves 3-8 cm long and 1-3 cm wide, linear-oblong to oblong-lanceolate, petiolate, more or less fleshy, margin often undulate or crisped; floral bract c. 2 cm long, somewhat leaf-like, with a long cylindrical base closely ensheathing the peduncle and the ovary.

Flower between or above the spreading leaves, predominantly green, to 15 mm long, fleshy; dorsal sepal hooded, ovate-lanceolate; lateral sepals recurved; linear; petals erect, spreading distally, ovate-lanceolate; labellum on a very short claw, 6-8 mm long, usually broadly ovate; calli dark-green or reddish, variously arranged mainly in a central group, 2 often forming thickened auricles near the base; column almost as long as the labellum, widely winged in the upper half, the points of the wings higher than the anther.

Published illustration: Fitzgerald (1885) Australian orchids vol. 2, pt 2 as C. muelleri; Barrett (1934) Sun nature book 5:22; Gray (1966) Victorian native orchids, p. 21 .

Distribution:  Grows in or near sphagnum bogs where it forms small colonies. Very rare in S.Aust. S.Aust.: SE.   N.S.W.; Vic.; Tas.   New Zealand. Conservation status: native Flowering time: Oct. — Jan. (Oct. — Nov. in S. Aust.).

SA Distribution Map based on current data relating to specimens held in the State Herbarium of South Australia

Biology: Self-pollinated in the S. Aust. forms.

Author: Not yet available