xxii linNjEAN synopsis of genera. 



Order II. DIGYNIA. 



48. BuPFONiA. Cal. of 4 persistent sepals. 



{Cuscuta, N. O. 53.) 



Order III. TETRAGYNIA. 



218. Ilex. Cal. 4-tootlie(i. Cor. rotate. Berry with four 1- 



seeded nuts. 

 54. MoENCHiA. Pet. 4. Caps. 1-ceUed, opening at the top 

 with 8 teeth. 



49. Sagina. Pet. 4. Caps. 1-celled, opening with 4 valves. 

 66. Eadiola. Cal. 4-fid; lobes 2— 3-fid. Pet. 4. Caps, with 



8 cells and 8 valves. 

 125. TiLLiBA. Cal. 3 — 4-parted. Caps, several, each 2-seeded. 

 350. PoTAMOGETON. Perianth single, of 4 scales. Drupes 4. 

 [Cerastium, N. O. 14.) 



Class V. PENTANDRIA. 



Order I. MONOGYNIA. 



* Cor. monopetalous, inferior. Ovary 4-lobed. Fr. 4 nuts. 

 226. Nat. Order 54. Boraginace^. 



** Cor. monopetalous, inferior. Caps, l-celled. Stam. opposite 

 to the segments of the corolla. 



265. Nat. Order 61. Primulace^e (in part). 



*** Cor. monopetalous, inferior. Stam. and cor. -segments 

 alternate. 



220. Nat. Order 51. Gentianace^ (in part). Fr. 1- or im- 

 perfectly 2-celled, many-seeded. 



232. Nat. Order 56. SoiiANACE.aE. Fr. 2-celled, many-seeded. 

 Stam. on the corolla, equal. 



238. Verbascum. Fr. 2-celled, many-seeded. Stam. on the 

 corolla, unequal ; 2 or more hairy at the base. 



224. PoLEMONiuM. Fr. 3-celled. Stam. on the cor.-tube. 



224. Nat. Order 53. Convolvulace^. Fr. 2— 3-celled, 

 mostly few-seeded. Stam. on the base of the corolla. 



216. Azalea. Fr. 2 — 3-celled. Stam. on the receptacle. 



219. ViNCA. Fr. consisting of 2 follicles. 



**** Cor. monopetalous, superior. 



208. Nat. Order 46. Campanulace^. Stam. separate from 

 the coroUa. Fr. a capsule. 



