34 AUSTRALIAN PLANTS. 



sepals three, ovate-lanceolate, acuminate ; filaments very short, connec- 

 tive puberulous at the top ; capsules depressed, with three, rarely four, 

 valves, which are wingless, hut bear an appendage on the back ; seed 

 shinins. 



Hab. In the scrub near Port Lincoln, on limestone, C. Wilhelmi, 

 Undoubtedly similar to B. pi7iifolia. 



.X. AMPELIDEiE. 



33. Cissus Australasicay E. Muell. ; leaves palmate, quinquefohate ; 

 leaflets coriaceous, stalked, smooth, ovate-lanceolate, acuminate, remotely 

 serrate or entire towards the top, glaucous below ; the paniculate cymes 

 or the tendrils shorter than the opposite leaf, or equally long; flowers 



four-parted, 



Hab. On the wooded banks of the Broadribb River. 



This Australian species, which forms a high climber, is nearly related 

 "to C diver sifoUa^ DC. (not of Walpers). 



XI. ZYGOPHYLLEiE. 



r 



34. Tribulus acanthococcus^ F. Muell. ; prostrate; leaves longer than 

 the pedicels, with generally five ~or six pair of leaflets, which are ob- 

 lique, ovate-lanceolate, approximate, and in size almost equal to each 

 other, subsessile, beneath adpressed, hairy ; flowers decandrous ; petals 

 obovate, exceeding in length the narrow, oblong sepals ; anthers ovate ; 

 rays of the stigma reflexed, half as long as the thick style; fruit de- 

 pressed, consisting of five puberulous three-seeded carpels, which are 

 bispinose in the middle, and on the back crested and hairy, at the 

 commissure lacunose, and destitute of a wing. 



Hab, On the sandy, loamy, arid plains along the Murray and Mur- 

 rumbidgee, towards their junction. 



Only one Australian species has been previously described from this 

 genus, T. Uydrix, E. Br. in Sturt's Exp. into Central Australia, ii. app. 

 p. 69 (T. lanaius, Walp. Annal. ii. 243), for the discovery of which we 

 are indebted to the enterprising Captain Sturt. 



XIL DlOSME^, 



New genus : Asterolasia, F. Unell.— Flowers hermaphrodite, so- 

 litary, sessile. Sepals five, petaloid. Petals five, membranous, mi- 

 nute, or wanting. Stamms ten, hardly exceeding the length of the 



