DECANDRIA, DIGYNIA. 209 
celled, subsemibivalve ; valves equal.— 
!• M. leaves sub-lobate- acute, angled, dentate ; diphyiia, 
stem erect above, two-leaved, leaves opposite,— ’ 
Willd. and Fursh. 
Icon. Rob. ic. 80. Schkuhr. hand. 1. t. 120. 
Lain, illustr. t. 373. f. 1. (Pursh.) 
Two4eaved Bishop^s-cap. American Bastard- 
sanicle. 
A very delicate plant, about one foot high, with white flow- 
ers. On the low banks of the Wissahickon, near springs and 
rivulets. Rare. Perennial. May. 
209. SAPONARIA. Gen. pi. 769. {Caryophyllece.) 
Calix tubulous 5-toothed, naked at the base. 
Petals 5 ; unguiculate. Capsule 1 -cell- 
ed. — JV* utt. 
1. S. calices cylindric, leaves ovate-lanceolate. — officinalis. 
mild. 
Icon. FI. Dan. 543. Engl. Bot. 1060. 
Officinal Soap-wort. Bruise-wort. Bouncing-Bet. 
A well known plant in gardens with white flowers, that 
have great tendency to a duplication of petals. Among rub- 
bish, in wastes, and near habitations and neglected outhouses, 
all through the country; very common. In the streets of Cam- 
den, and on the road to Woodbury, in the sand. Introduced, 
but naturalized. Perennial. July. 
210. DIANTHUS. Gen. pi. 770. (Caryophyllea.) 
Calix cylindric, coriaceous, 5-toothed, the 
base surrounded by to 8 scales. Petals 
5, unguiculate. Capsule cylindric, 1 -cell- 
ed, bursting at the summit. — *!S*utt. 
