1 SYNOPSIS OF GENERA. 



HEXANDRIA. 



ZIZANIA. Glume none. STERILE FL. Palea 2, subawned. FER- 

 TILE FL. PalecK 2, cucullate and awned. Style 2-parted. Seed 1, in- 

 vested by the plaited pales. Gramincee, p. 419. 



HYDROCHLOA. Glume none. STERILE FL. Palea 2, awnless. FER- 

 TILE FL. Palece 2, awnless. Stig. 2, very long. Seed 1, reniforni. 

 Graminea, p. -419. 



POLYANDRIA. 



(Stems not woody.) 



CKRATOPHYLLUM. Cal. many-parted. STERILE FL. Cor. none. Stam. 

 16_20. Anlk. tricuspidate. FERTILE FL. Cor. none. Style 1, fili- 

 form. Nut 1-seeded. Ceralophyllea, p. 124. 



MYRIOPHYLLUM. STERILE FL. Cal. 4- parted. Cor. 4-petalled. Slain. 

 4-6-8.. FERTILE FL. Cal. adhering to the ovary ; limb 4-lobed. Pet. 

 none. Nuts 4, compressed or subglobose, 1-seeded. Haloragece, p. 121. 



SAGITTARIA. Cal. 3-leaved. Pet. 3. STERILE FL. Stam. about 

 24. FERTILE FL. Ovaries numerous. Caps, compressed, margined, 

 1 -seeded. Atismacea, p 376. 



AKUJI. Spathc 1-leaved, cucullate, convolute at the base. Spad. 

 naked above, bearing sessile anthers below the middle and ovaries at 

 the base. Ber. 1 -celled, many-seeded. Aroidecc, p. 381. 



RENSSKLAERIA. Spatfie convolute. Spad. covered with flowers, fer- 

 tile at the base, sterile above. Perianth none. Ber. 1-seeded. Arui- 

 dect, p. 382. 



CALLA. Spathe ovat, somewhat flattened. Spad. covered with 

 flowers. Perianth none. Ber. many-celled, many-seeded. Aroidea. 

 p. 282. 



(Stems woody.} 



OBS. The genera of this division are Forest Trees, and are included 

 under the Nat. Ord. Amentacea, p. 317. 



MONADELPHIA. 



(Stems not woody.} 



ACALYPHA. STERILE FL. Perianth 3 or 4-parted. Stam. 816. 

 FERTILE FL. Styles 3, 2-parted Caps. 3-celled, 3-seeded. Euphor- 

 biaccx, p. 311. 



RICINUS. STERILE FL. Perianth 5- parted. Stam. numerous. FER- 

 TILE FL. Perianth 3- parted. Styles 3, 2-cleft. Caps, mostly echin- 

 ate, 3-celled, 3-seeded. Euphorbiaceat, p. 311. 



PHYLLANTHUS. STERILE FL. Perianth 5 6-parted. Fit. often col- 

 umnar. FERTILE FL., resembling the sterile. Nectary ? a 12 angled 

 margin. Styles 3. Caps, mostly 3-grained. EuphorbiactcK, p. 310. 



MELOTHRIA. STERILE FL. Cal. 3 5-topthed. Cor. bell-form. /'//. 

 5, in 3 sets. FERTILE FL. Cal. and cor. as in the sterile. Style 1 . 

 Stig. 3. Fruit 3-celled, many-seeded. Cwwbitacut, p. 128. 



MOMORDICA. STERILE FL. CaL 5 cleft. Cor. 5 parted. Stam. in 

 3 sets. FERTILE FL. Stole 3-cleft. Ovary 3-elled. Fruit often mu- 

 ricate. Cucubitacw., p. 128. 



Sictos. STERILE Fu CaL 5-toothed; teeth subulate, 5-parted. 



