25 



Three valid species of Calochilus have been recorded, and 

 from these the new species differs mainly in the following 

 particulars : — 



1. The leaf is relatively shorter and much more rigid 



than in the other species. It is also triangular in 

 section, whereas the section is crescentic in the 

 others. 



2. The raceme bears a large number of flowers, viz., 8 



to 15, whereas 8 flowers may probably be regarded 

 as the maximum in other species. 



3. Its copper-coloured bracts and the colour of its 



flowers are distinctive. 



4. The glabrous oblong base of the labellum with the 



characteristic raised lines, serve at once to dis- 

 tinguish it from other members of the genus. 



The following differential table will further show the 

 relations of Galochilus cupreus to other species : — 



Column-wing without dark gland on each 

 side near base of column. Tip of labellum 



ligulate ,- ...... 1. C. paludosus 



Column-wing with dark gland on each side 

 near base of column. 

 Tip of labellum without ligulate process, 



whole of surface of labellum hirsute ... 2. C. llobertsoni 

 Tip of labellum with ligulate process, 

 labellum not hairy at base. 

 Base of labellum glabrous, with several 



raised longitudinal lines 3. C. cupreus 



Base of labellum smooth and thickened, 



without raised longitudinal lines ... 4. C. campestris 



It should be noted the C. paludosus, Br., is incorrectly 

 figured in Fitzgerald's Australian Orchids with two glands at 

 the base of the column. This is not in conformity with the 

 original description in Brown's Prodomus, nor is it supported 

 by Bentham in the Flora Australiensis, nor indeed is it sup- 

 ported by Fitzgerald himself in Moore's Flora of New South 

 Wales (see page 394). 



Of the above species, C. paludosus has been recorded only 

 from Queensland and New South Wales; C. campestris from 

 all the Eastern States, including Tasmania; and C. Robertsoni 

 from New South Wales, Victoria, South Australia, and 

 Western Australia. 



The new species was found by Mrs.. R. S. Rogers near 

 McLaren Vale early in November. The plants were mostly in 

 advanced fruit, and evidently bloom in October. 



The name cupreus has reference to the coppery colour of 

 the bracts and flowers. 



