BY BARON VON MUELLER. 473 



Cynanchum pedunculatum, R. Brown. 

 Pentacost River. 



Fruitlets 2-3 inches long, about J inch broad, much gradually 

 attenuated upwards, glabrous. Seeds about J inch long. 



Cynanchum floribundum, R. Brown. 

 Prince Regent's River. 



Ramphicarpa macrosiphonia. 



Annual, imperfectly glandular-puberulous; basal leaves crowded, 

 somewhat ovate, those of the stem opposite, gradually narrower, 

 grossly and distantly indented or short-lobed, the floral leaves 

 almost linear; pedicels several times longer than the calyx, 

 angular, finally refracted ; calyx deeply cleft into five rather 

 narrow segments ; tube of the corolla extremely long, filiform 

 to near the summit, the lobes twice or thrice shorter ; two of 

 the stamens rudimentary ; style capillary ; stigma conspicuously 

 dilated, its lobes membranous, somewhat unequal, minutely fim- 

 briolated ; capsule ovate, acute, much shorter than the calyx. 



Prince Regent's River. 



A showy flaccid herb, up to 1| feet high. Lower leaves to 1^ 

 inches long, uppermost leaves reduced to bracts. Pedicel to 1J 

 inches long. Calyx measuring about J inch in length. Corolla 

 said to be buff-coloured, perhaps at first whitish, of tender texture, 

 outside glabrous ; its tube fully three inches long or even longer. 

 Fertile stamens short, inserted in the upper widened part of the 

 corolla-tube. Capsule bivalved, only about J inch long, though 

 split yet not seen in perfect development. 



The plant is here left in Ramphicarpa, from which however 

 the presence of only two fertile stamens removes it, so that it 

 would best be considered a distinct genus, and should receive then 

 the name Bradshawia in honour of the discoverer. From well- 

 matured fruit perhaps other generic differences could be pointed 

 out hereafter. 



