Citation: R. Rogers, Trans. R. Soc. S. Aust. 33:17 (1909).

Synonymy: C. filamentosa R. Br. var. bicalliata (R. Rogers) J. Weber & R. Bates in J. Black, Fl. S. Aust. 395 (1978).

Common name: Limestone spider, western daddylong-legs.

Description:
Small, slender, hairy, 6-14 cm high; leaf very hairy, large for the size of the plant, linear-lanceolate, c. 6 cm long.

Flower solitary or rarely 2, cream-coloured with red veining, perianth-segments suddenly contracted into coarse cylindrical glandular filaments; dorsal sepal c. 2 cm long, one-third of which is dilated; lateral sepals less than 2 cm long, one-half of which is dilated; petals gradually contracted into filaments; labellum ovate, c. 7 mm long and c. 5 mm wide, on a short movable claw; margins very shortly and bluntly serrate, lamina conspicuously redveined; calli club-shaped, in 2 well defined rows, extending to within 3 mm of the tip; column c. 8 mm long, erect then incurved, widely winged in the upper third; anther without a point.

Published illustration: Fiveash & Lothian (1974) Australian orchids, pl. 5, left.

Distribution:  Occurs singly or in small clumps in calcareous sands or in leaf litter on limestone and chiefly coastal.   W.Aust. Conservation status: native Flowering time: Aug. — Sept.

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

Biology: A self-pollinating species, some (cleistogamous) forms have flowers which never open. Very similar to small forms of C. filamentosa.

Author: Not yet available