SYNOPSIS OF GENERA. XXV 



BARTSIA. Caps, of 2 cells. Seeds angular. Scrophularineae, p. 202. 



RHINANTHUS. Caps, of 2 cells. Seeds compressed, imbricated. Scro- 

 phularinecs, p. 201. 



MELAMPYRUM. Caps, of 2 cells. Seeds in pairs, tumid, smooth. 

 Melampyracece, p. 207. 



EUPHRASIA. Caps, of 2 cells. <&?<& striated. Anth. spinous. Scro- 

 phularinece, p. 202. 



* * Calyx 5-cleft. 



SCROPHULARIA. Caps, of 2 cells. Cor. reversed; tube inflated; limb 

 rounded, much shorter. Scrophularinece, p. 205. 



SIBTHORPIA. Caps, of 2 cells, with transverse partitions. Cor. nearly 

 wheel-shaped. Stam. converging laterally in pairs. Scropliularinece, p. 204. 



VERBENA. Cal. with 1 of the 5 teeth abrupt. Cor. nearly equal, 

 curved. Stam. in the tube. Verbenacece, p. 208. 



DIGITALIS. Caps, of 2 cells. Cor. bell-shaped, tumid underneath. 

 Stam. bent. Scrophularinece ', p. 204. 



LINARIA. Cal. 5-parted. Cor. personate, spurred at the base, the mouth 

 closed by a projecting palate. Caps, ventricose, 2-celled, opening by valves 

 or teeth. Scrophularinea, p. 203. 



ANTIRRHINUM. Caps, of 2 cells, bursting unequally at the summit. 

 Cor. closed with a palate, prominent or spurred at the base behind. Scrophu- 

 larinece, p. 204. 



PEDICULARIS. Caps, of 2 cells. Seeds pointed. Cor. ringent j upper 

 lip compressed. Scrophularinece, p. 201. 



* * * Calyx of 2 leaves. 



OROBANCHE. Calyx leaves lateral. A gland under the germen. Caps. 

 of 1 cell, with 4 receptacles. Orobanchea, p. 206. 



Class XV. TETRADYNAMIA. Stamens 6, 2 opposite ones 

 shortest. (Nat. Ord. CRUCIFER.E, Juss.) 



Order I. SILICULOSA. Fruit a short roundish pod, or pouch. 

 * Cotyledons accumbent. 



DRABA. Pouch entire, laterally compressed ; valves nearly flat. Seeds 

 numerous, p. 20. 



CRAMBE. Pouch globose, stalked, coriaceous, of 1 cell, without valves, 

 deciduous. Seed solitary, p. 29. 



CAKILE. Pouch angular, of 2 joints, each of 1 cell, without valves ; the 

 uppermost deciduous. Seeds solitary, p. 22. 



COCHLEARIA. Pouch nearly entire, turgid, rugged, of 2 valves. Seeds 

 numerous, p. 21. 



THLASPI. Pouch laterally compressed, emarginate ; valves winged at the 

 back, many-seeded. Cotyledons accumbent. p. 22. 



CAPSELLA. Pouch laterally compressed, obcordato-cuneate ; the valves 

 sharply keeled, without wings, many-seeded. Cotyledons incumbent, p. 26. 



d 



