i 



582 MONOECIA TETRANDRIA, UrticU. 



not ripened its seed, owing, I presume, to our plant, so far as 

 I have been able to observe, bearing- only female flowers. 



Root ramous, perennial. Stems herbaceous, erect, about 

 three leet hijih, and with but few blanches, four orooved on 

 the sides, with but few angles rounded, and every part armed 

 with numerous, strong, very sharp, clear, stinging bristles. 

 Leaves opposite, petioled, ovate, and ovate lanceolate, grossly 

 serrate, Mrinkled, about three inches long, by one broad. 

 Petioles scarcely half the length of the leaves, armed. Sli- 

 pufes opposite, entire, oblong, conic. Femali-: flowers. 

 Panicles quatern, that is, two in each axill, as in U. dioeca, 

 which it most resembles. Flowers very minute, green. Cali/x 

 of two opposite pairs of oval leaflets. Stamina none. Germ 

 oval. Style none. Stigma a pencil of white hairs. 



S. U. trinervia. /?. 



Shrubby. Leaves opposite, broad-lanceolate, crenate, dis- 

 tinctly three-nerved to the apex, panicles axillary, the length 

 of the petioles. 



A native of Chittagong, where it blossoms in April. 



4. U. alienata. Syst. Veg. 709. 



Annual, erect while young; branches brachiate. Leaves 

 opposite, petioled, ovate, three-nerved, entire. Flowers axil- 

 lary, sessile, female calyx urceolate. 



Bcehmeria alienata. WilUl. iv. 341. 



Parieteria Zeylanica. Linn. Sp. 1492. 



Parieteria Cochin-chinensis. Lour. Cochin Ch. 450. 



A native of Ceylon, and introduced by General Macdowall 

 into the Botanic garden where it blossoms during the rains. 



Root ramous, annual. Stem erect, nearly round, somewhat 

 scabrous. Branches from two to three pairs, decussate, 

 height of the whole plant from six to twelve inches. Leaves 

 opposite, petioled, ovate, three-nerved, entire, somewhat sca- 

 brous underneath, length from one to two inches. Stipules 

 two on each side, acute and slender. Flowers axillary, ses- 



