SYNOPSIS OP GENERA. Xlv 



OXALIS. Col. 5-parted, persistent. Pet. 5. Caps. 5-angled, 5-cell- 

 ed, bursting at the angles. Seeds covered with an elastic aril. Oxali- 

 decs, p. 69. 



AGROSTEMMA. Cat. 1-leaved, tubular, coriaceous, 4-sided. Pet. 5, 

 clawed ; limb undivided. Caps. 1-celled. Caryophyllece, p. 49. 



CERASTIUM. Cal. 5-parted. Pet. 5, bifid. Caps. 1-celled, dehiscent 

 at the apex with 5 or 10 teeth. Caryopkyllece, p. 53. 



SPERGULA. CaL 5-parted. Pet. 5, undivided. Caps, ovate. Cary- 

 ophyllea, p. 50. 



PENTHORUM. Cal. 5-parted. PeL 5 or none. Caps. 5-pointed, 5-cell- 

 ^d, 5- sided at the apex. Crassulacece, p. 133. 

 DECAGYNIA. 



PHYTOLACCA. Perianth 5-leaved, petaloid. Ber. superior, 10-celled, 

 10-seeded, Phytolaccea, p. 299. 



ICOSANDRIA. 



MONOGYNIA, 



OPUNTIA. Cal. many-sepalled ; outer sepals flat, short ; inner ones 

 petal-like, obovate, rosaceous. Ber. ovate, umbilicate at the apex, tu- 

 berculate and often bearing spines. Cactea, p. 134. 



PRUNUS. Cal. inferior, 5-toothed. Cor. 5-petalled. Drupe ovate or 

 oblong, fleshy, very smooth, covered with -greyish dust ; putamen com- 

 pressed, acute at both ends, subsulcate at the margin, elsewhere 

 smooth. Amygdalae, p. 95. 



CERASUS. Drupe globose or umbilicate at base, fleshy, very smooth, 

 destitute of grey powder ; nucleus subglobose, smooth. Amygdalece, 

 p. 96. 



LYTHRUM. Cal. cylindric, striate, 8 12-toothed. Pet. 4 6, equal, 

 inserted on the calyx. Caps. 2-celled, many-seeded. Salicariee, p. 125. 



CUPHEA. Cal. inflated, tubular, 6 12-toothed, unequal. Pet. 67, 

 unequal, inserted into the calyx. Caps. 1 2-celled, at length bursting 

 longitudinally. SalicaritB, p. 126. 



DECODON. Cal. hemispheric-campanulate, 10-toothed ; 5 teeth longer 

 and spreading. Pet. 5, undulate. Caps, covered with the calyx, 3- 

 celled, 3-valved. Saticarue, p. 126. 



DI-PENTAGYNIA. 

 (From Order 2 to Order 5 inclusive.) 



SESUVIUM. Cal. 5-parted, coloured. Pet. none. Stig. 3 5. Caps. 

 superior, 3 5-celled, opening circularly, many-seeded. Ficoidea, p. 

 134. 



OBS. The remaining genera of this division belong to the Orders 

 Rosacea, (p. 98,) and Pomacea, (p. 110.) 



POLYGYHIA. 



CALYCANTHUS. Lobes of the cal. in many rows, imbricate, lanceolate, 

 somewhat coriaceous, coloured. Cor. none. Stam. unequal. Acines 

 many. Calycanthece, p. 115. 



OBS. All the other genera of this order are included under Rosa- 

 tea, p. 98. 



4a 



