XX11 LINNJEAN SYNOPSIS OF GENERA. 



Order II. DIGYNIA. 



48. BUFFONIA. Cal. of 4 persistent sepals. 



(Cuscuta, N. O. 53.) 



Order III. TETRAGYNIA. 



218. ILEX. Cal. 4-toothed. Cor. rotate. Berry with four 1- 



seeded nuts. 



54. MOENCHIA. Pet. 4. Caps. 1-celled, opening at the top 

 with 8 teeth. 



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

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



8 cells and 8 valves. 



125. TILL^EA. Cal. 3 4-parted. Caps, several, each 2-seeded. 

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

 (Cerastium, N. O. 14.) 



Class V. PENTANDBIA. 



Order I. MONOGYNIA. 



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

 226. Nat. Order 54. BORAGINACE.E. 



** 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^E (in part). Fr. 1- or im- 



^perfectly 2-celled, many-seeded. 

 232. Nat. Order 55. SOLANACE^E. 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^E. 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^E. Stam. separate from 

 the corolla. Fr. a capsule. 



