24 



Notes on Australian Orchids, together with 

 a Description of Some New Species. 



By R. S. Rogers, M.A., M.D. 



[Read May 9, 1918.] 



Plates II. to IV. 



1. Calochilus cupreus, n. sp. 

 Plate ii. 

 A robust plant 15 inches to 2 feet in height. Leaf com- 

 paratively short, 4|-6 inches, rather rigid or fleshy, triangular 

 in section, erect, pointed, channelled on the inside. 



Stem-bracts 2, from 2 to 3 inches long, coppery coloured, 

 subulate, clasping, lower one close to insertion of leaf, upper 

 one about middle of stem; floral bracts subtending pedicels of 

 flowers, subulate, 1J inches or less in length. 



Flowers in a raceme of 8 to 15, with prevailing tints of 

 yellow and reddish-brown. 



Sepals equal in length, yellow with reddish-brown stripes 

 or dots ; the dorsal one ovate, cucullate, shortly acuminate, 

 streaked or dotted with reddish-brown markings ; the lateral 

 ones ovate-lanceolate, slightly narrower than the dorsal sepal. 



Lateral petals narrowly ovate-lanceolate, slightly shorter 

 and much narrower than the sepals, yellow with darker stripes. 



Labellum with fleshy rectangular base and wide triangular 

 lamina, longer than perianth, protruding between lateral 

 sepals, golden-yellow, with fimbriated margins and reddish- 

 blue hairs with metallic lustre ; basal portion with brilliant 

 reddish-blue raised lines with metallic sheen, the two outer ones 

 rather fleshy glandular linear-lanceolate, the intervening ones 

 linear, sometimes fused at their bases or along their course, 

 all ending in free divergent hair-like extremities ; other hairs 

 on lamina not dense and rather shorter than in other species of 

 Calochilus; tip of labellum recurved and ending in a short, 

 hairless, sinuous ribbon. 



Column short and widely winged, with reddish-brown 

 markings, very open at base with a comma-shaped purple 

 gland at each lower angle ; no castellated ridge connecting the 

 glands, but generally a more or less indistinct yellowish-brown 

 marking between them ; anther long, horizontal, with duck-bill 

 point; stigma just below the anther, transverse, reniform with 

 convex margin directed downwards. 



