SYNOPSIS OF THE GENERA. 



CLASS 1. MONANDRY. 1 Stamen. 



ORDER 1. MONOGYNIA. 1 Pistil. 



1. SALKJOR'NIA, [Pagcl.] Perianth single, swelling, flesh}', nearly 



equal. Style, short. Stigmas, two or three-cleft. Seed 

 one, inclosed in a thin transparent skin, enveloped in the 

 inflated perianth. 



2. HIPPD'RDS, [Page 3.] Perianth single, crowning the germen 



with a slight border. Seed one, inclosed in a small oval, 

 hard, and shining pericarp. 



(See Valcriana rubra, in Class ///.; Alchemilla arvensis in Class 

 IV. ; Zoslera and Callitriche, in Class XXI. ; Chara, in 

 Class XXI y.) 



CLASS 2. DIANDRIA. 2 Stamens. 



ORDER 1. MONOGTNIA. 1 Pistil. 

 * Perianth double, inferior, monopeialous, regular. 



1 LIGUS'TROM, [Page 4.] Calyx of one leaf, with four bluntish 

 projecting teeth. Corolla of one petal, regular, in four 

 segments. Berry of two cells, with two seeds in each. 



** Perianth double, inferior, monopeialous, irregular. Seeds 

 inclosed in a pericarp. 



2. VERON'ICA, [Page 5.] Calyx of one piece, inferior, persistent, 



divided into four deep segments. Corolla wheel-shaped 

 deeply four-cleft, the lower segments smallest. Capsule 

 two-celled. 



3. PINGUIO'ULA, [Page 17.] Calyx permanent, two-lipped, upper 



three-cleft, tfce lower bifid. Corolla ringent, spurred, and 



