178 DECANDRIA— MONOGYNIA. 



305. SILENE. Cal. 1 -leaved, tubular or conic, 5-tooth- 



ed. Pet. 5, unguiculate, mostly crowned at the 

 orifice. Caps. 3-celled, 6-toothed, many-seeded. 



306. STELLARIA. Cal. 5-leaved. Pet. 5, deeply cleft. 



Caps. 1 -celled, opening with 6 teeth, many- 

 seeded. 



307. ARENARIA. Cal. 5-leaved. Pet. 5, undivided. 



Caps. 1 -celled, many-seeded. 



PENTAGYNIA. 



308. SPERGULA. Cal. 5-leaved. Pet. 5, undivided. 



Caps, ovate, 5-celled, 5-valved. 



309. CERAST1UM. Cat. 5-leaved. Pet. 5, bifid or 



emarginate. Caps. 1 -celled, bursting at the sum- 

 mit with 10 teeth. 



310. AGROSTEMMA. Cat. 1 -leaved, tubular, coriace- 



ous, 5-cleft. Pet. 5, unguiculate ; limb obtuse, 

 undivided. Caps. 1 -celled, opening with 5 teeth. 



311. OXAL1S. Cal. 5-parted, persistent. Pet. 5, slight- 



ly connected at the flaws. Caps, pentangular, 5- 

 celled, bursting at the angles ; cells 2, or many- 

 seeded. Seeds covered with an elastic arillus. 



312. PENTHORUM. Cal. 5— 10-cleft. Pet. 5 or 0. 



Caps. 5-pointed, 5-celled ; cells dividing trans- 

 versely, many -seeded. 



313. SEDUM. Cal. 5-cleft. Pet. 5. Caps. 5, with a 



nectariferous scale at the base of each. 



DECAGYNIA. 



314. PHYTOLACCA. Cal. 5-cleft, petaloid. Berry 



superior, 10-celled, 10-seeded. 



MONOGYNIA. 



279. ARBUTUS. Bear-berry. Ericece. 



A. Uvaursi: stem procumbpnt ; leaves cuneate-ob- 

 ovate, very entire, cori.iceous ; margin convex ; 

 flowers fasciculate ; berries 5-seeded. 



HAB. Sandy woods and mountains. Apr. — May. \, 

 Evergreen; jl. rose-col.; her. red. 



