349 



giving to the column an appearance of greatly increased 

 width; free at their points; about 22 mm. long. Labellum 

 ovate-rhomboid on rather long and slender claw.; about 9 mm. 

 (extended without the claw) long, and from 8-9 mm. wide; 

 claw vertical, 2'5 mm. long; marked with wide deep red stripes 

 and yellow interspaces; very mobile but generally vertical, 

 slightly recurved from about the middle. Calli collected on 

 upper part of claw and central portion of base of lamina; 

 anterior calli numerous on yellow pedicels with reddish heads, 

 all pedicels connate so as to form a raised mat or cushion on 

 which the heads are seen to be arranged in several indefinite 

 rows; posterior calli much larger with purple clavate heads, 

 several joining together in flat plates with multi-papillose 

 summits. Column blunt or only slightly pointed, about 

 12 mm. long; retracted horizontally almost at right angles to 

 the floral axis, then incurved; stigmatic wings very large, 

 bluntly and widely falco-triangular, membranous with 

 thickened upper margins, the hood formed by the dorsal sepal 

 and lateral petals stretched over them; no yellow glands at 

 base. 



Owing to the vertical position usually assumed by the 

 labellum the plant is generally inconspicuous as in the case 

 of C . Cairnsiana. The column is quite as wide as that of 

 C. macrostyUs, Fitz. 



G . reticulata^ Fitz. 



Western Australia: Sand loam, near Gilgerring, O. H. 

 Sargent, llj^l^l ; Woogenellup, Rogers, 23/9/19. 



Mr. Sargent's specimens showed no departure from type, 

 except that the clavate points were missing. At AVoogenellup 

 three specimens were found close together, two had clavate 

 points to the sepals, one had not. 



In South Australia, near Bordertown, the writer 

 collected numerous crimson specimens of this species. 



C. filamentosa , Br. 



Western Australia: Perth, Mr. J. Sheath and Dr. J. B. 

 Cleland; Waroona, Mr. G. F. Berthoud, Julv, 1907 : Muresk, 

 Mrs. W. E. Cooke, 4/9/07; Cut Hill, near York, O. H. 

 Sargent, 25/8/07; Northam, Mrs. W. E. Cooke, September, 

 1907; Albany and Mount Barker districts, Rogers, 

 September 22-25, 1919. 



Much variation is noted in this species particularly in 

 regard to colour and size. The following forms are common : — 



1. Flower wholly yellow with exception of the labellum, 

 which is yellow ^ with brown divergent lines on the lamina ; 

 tendency for calli to become imbricated ; calli fleshy and thick. 



