Class XXI. Order II. 329 



flexuous, and often of a reddish tinge. Leaves alternate, on 

 short petioles, oblong 1 , entire, acuminate, heart-shaped at hase 

 &nd three nerved. The flowers grow close to the ground ; they 

 have a stiff, leathery texture, and a dull browni$h purple colour. 

 The peduncle has one or more leafets, and gradually enlarges 

 into a furrowed, obovate germ. The corolla consists of a long, 

 contorted tube, bent in the form of the letter S. swelling at its 

 two extremities, having its throat surrounded by an elevated 

 edge or brim, and its border expanded into a broad, irregular 

 margin, forming an upper and under lip, which are closed in a 

 triangular manner in the bud. Anthers twelve, growing in pairs 

 to the sides of the fleshy style, which is situated at the bottom 

 of the corolla, and covered by a firm, spreading, convoluted stig- 

 ma, which extends over the anthers. Capsule obovate, six an- 

 gled, six celled, with numerous, flat, small seed?. Woods near 

 New-Haven. June. Perennial. 



Class XXI. MONOGCIA. Staminiferous and pistil- 

 iferous, or barren and fertile flowers on the same 

 plant. 



Order I. MONANDRM. One stamen. 



390. CHARA. Barren flowers, calyx none, corol- 

 la none ; fertile flowers, calyx four leaved, corolla 

 none ; stigma three cleft ; berry many seeded. 



391. ZOSTERA. Spadix linear, bearing the fructifi- 

 cation on one side ; calyx none ; corolla none ; anther 

 sessile, parallel to the germ ; stigmas two ; capsules 

 one seeded. 



Order II. D1J1NDR1J1. Two stamens. 



392. LEMNA. Calyx one leafed ; corolla none ; 

 style one ; capsule many seeded. 



4,2 



