Rosa. ICOSANDRIA POLYGYNIA. 515 



prickles. Leaflets from five to nine, ovate-lanceolate, 

 acutely serrate, smooth. Stipules subulate ; petioles arm- 

 ed. 



This stout, straggling, recurved, powerfully armed 

 shrub is a native of Nepal ; from thence it was sent by Dr. 

 Buchanan to the Botanic garden at Calcutta, where it has 

 now been ten years and has not yet blossomed. Dr. Bu- 

 chanan however ascertained the genus in Nepal, where it 

 blossoms freely. 



8. R. diffusa. R. 



Stems and branches weak, diffuse, armed with strong, 

 recurved prickles in stipulary pairs. Leaflets five, ovate- 

 oblong, villous ; stipules pectinate. 



This distinct species is readily known by its weak, dif- 

 fuse and procumbent, very long, almost simple branches, 

 which often rest on the ground ; it is supposed to be a na- 

 tive of China, as it was brought from Canton to the Bota- 

 nic garden at Calcutta. 



9. R, microphylla. R. 



Sufiiuticose, armed with straight pairs of stipulary 

 prickles only. Leaflets seven or nine, minute, oval, fine- 

 ly and acutely serrulate ; stipules ensiform, entire. 



Chin. Hoi-tong-hong^. 



Introduced from Canton into the Botanic garden at 

 Calcutta. 



10. R. triphylla. R. 



Scandent, armed. Leaves ternate ; leaflets lanceolate. 



From China this very extensive rambler was brought 

 to the Botanic garden at Calcutta, previous to 1794, 

 ■where it thrives luxuriantly, and is known to the Chiue;5e 

 gardeners in the garden by the name, Tsha-te-bay-Ja. 



M tn m 2 



