liosa. iCOSANDRIA POLYGYNlA. 513 



1. R. involucrata. R. 



Subscandent, armed with strong stipularj^, straight 

 prickjes. -F/o?t;ers in subsessile fascicles. Bractesintorm. 

 of a four or five leaved laciniate, inferior calyx. 



A native of Nepal and Bengal ; it flowers about the 

 beginning of the warm w^eather in February ; its seed ri- 

 pens in the rains. Stem and branches stout and ligneous, 

 the latter often very long, subscandent, armed with strong, 

 straight, stipulary prickles ; young shoots villous. Leaves 

 pinnate ; common petiole villous, slightly armed, stem- 

 clasping, base pinnatifid. Leaflets opposite, from five to 

 eleven, oblong, serrate, villous underneath; the largest 

 about an inch long, and half an inch broad. Flowers 

 terminal, from one to many together, subsessile, large, 

 pure white, sweetly fragrant. Bractes four or five, sur- 

 rounding the base of the germ, singly they are lanceolate, 

 acuminate, with the lower margins deeply laciniate, and 

 villous. Calyx villous ; divisions entire. Corol single. 

 Petals obcordate. Germ globular, villous. 



2. R. cenfifolia. Willd. 2. 1071. 



Germs ovate, with peduncles hispid. Stem hispid, 

 and prickly. Petioles unarmed. 

 Arab. Wurd. 

 Pers. , Goal. 

 Hind, and Beng. Gulab. 



3. R, chinensis. Willd. 2. 1078. 



Germs obovate. Stem with remote, large prickles. 

 Peduncles hispid. Petioles almost unarmed. Leaflets 

 about five, broad-lanceolate, serrate, having both sides 

 smooth. Divisions of the calyx downy on the inside. 



Beng. Kanta, or Kath-Gulab. 



A native of China. Flowering time the cold sea- 

 son. It agrees so well with Linnaeus's description of 



M m m 



