351 



or yellowish- white with reddish-brown stripes down the centres 

 of the perianth segments; the labellura generally pale, but 

 sometimes with a reddish apex and similar coloured combings 

 and calli. Occasionally, however, the flowers are of a deep 

 uniform crimson or some intermediate shade. The sepals are 

 not clubbed, but are generally darker coloured at the tips 

 and their free extremities are beset with glandular hairs; 

 they are equal in length, the dorsal one erect or incurved, the 

 lateral ones spreading or slightly dependent. The labellum 

 is ovate-lanceolate and gradually tapers to a long and rather 

 acute point, the apex of which is usually revolute; the margins 

 are pectinate to about the middle, thereafter dentate or 

 serrate to the apex; the pectinations are not as in C dilatata; 

 the calli are of the linear and non-fleshy type and are arranged 

 on the lamina in 4-6 rows. The column is incurved, distinctly 

 winged in its upper half, and has two sessile yellow glands 

 on its anterior surface near the base. The anther has a 

 distinct point. 



This type of tentacular Caladenia is easily recognized and 

 will be found to be fairly consistent, if those with definitely 

 clavate lateral sepals are excluded. It is possible that there 

 may be an occasional exception, but these will be so few that 

 they are not likely to create any systematic difficulties. The 

 more notable departures from type will be found as regards 

 size, colour, and some variations in the shape of the labellum. 

 The flower of the Tasmanian plant averages from IJ to 

 3 inches (about 3-7"5 cm.) in diameter and rarely reaches 

 1 foot (30 cm.) in height; whereas the Western Australian 

 representative (C . longicauda, Lindl.), which should be 

 regarded as a variety, sometimes reaches a diameter of 

 10 inches (about 25 cm.) and 2| feet (75 cm.) in height. 

 Var. longicauda, n. comb. 



Western Australia : widely distributed throughout the 

 State. Blooms in September and October. 



This is the largest and the most beautiful of all the 

 Caladenias. The flowers are white (or almost so) with long 

 dusky tentacles which are covered with glandular hairs. The 

 labellum is not typical in shape, being ovate-oblong with 

 generally a very obtuse apex; the lateral margins have long 

 graceful combings about as far as the middle, thereafter the 

 margins are serrate to the apex ; the calli are linear, arranged 

 in from 4-6 rows. 



An illustration of this orchid will be found in Lindley's 

 Swan River Appendix, pi. viiiA. The colouring of the plant 

 is incorrect. It is shown as being very distinctly yellow with 

 purple caudae to the segment« of the perianth, and purple 

 combings and calli on the labellum. 



L 



