TROPiEQLACEiE. 



S3 



TR OPM OL A GEM. 



Exogens, with peduncles axillary, one-flowered. Divisions of 

 calyx three to five, the upper one with a long, distinct spur. Petals 

 one to five, growing from below the ovary, equal or unequal. 

 Stamens from six to ten, on the calyx, distinct. — Smooth, herba- 

 ceous plants, trailing or twining ; leaves alternate, without sti- 

 pules ; natives of the temperate parts of North and South Ame- 

 rica ; properties acrid, but the roots and fruits of some genera 

 are eaten. 



TROPJEOLUM. (Indian Cress, Nasturtium.) 



Gen. Char. (Octandria Monogynia) Calyx one-leaved, five-cleft, 

 spurred ; petals five, unequal ; nuts coriaceous, furrowed ; seeds 

 one, roundish. 



As the leaves resemble a buckler, and the flower a helmet, 

 the name is derived from trojoceum, a trophy. This remark- 

 ably pretty genus of plants has some well-known hardy 

 species, as the Nasturtium, Canariense, etc. ; the latter flou- 

 rishing more beautifully in the greenhouse than in the open 

 air. Those species requiring constant shelter are tricolor, a 

 lovely and delicate species, the leaves finely lobed, and the 

 flowers shaded with orange, red, and green ; pinnatum, poly- 

 pliyllum, and edule, yellow ; azureum, pale-blue ; tuberosum 

 and Moritzianum, orange ; and brachyceras and Jarrattii, 



