HEXANDRIA. rOLYGYM.l. 241 



Order V.—HEXAGYNIA. 



555. WENDLANDIA. Willdenow. 



Calix 6-Ieaved. CoroZ/a of 6 succulent? petals. 

 Stifles reclined. Germs 6. Berries each 1 -seed- 

 ed. Seed a compressed nut. 



A climbing dioicous slirub; leaves alternate; racemes 

 superaxillary. Scarcely distinct from Menispermum, with 

 which it ought a^ain to be compared. 



Species. 1. W. caroUniana. (Jfdm'spermum coroUnia- 

 num of Walter and Michaux, Fl. Am. 2. p. 242.} 



Order VI.— POLYGYNIA. 



956. ALISMA. L. (Water-plantain.) 



Calix 3-leaved. Petals 3. Capsules many, 1- 

 seeded, not openin.^. 



Aquatic plants with cordate, sagittate, ovate, or lance- 

 olate leaves; panicle simple or compound, branches and 

 branch lets ternately verticlllated. (In ^. natans, the leaves 

 are elliptic, the peduncles 1-flowered opposite the leaves, 

 and the fruit striated.) Nearly allied to, and scarcely dis- 

 tinct from Sagittaria. 



Species. 1. A. Plantago. "2. nutans^ Ph. Both species 

 also indigenous to Europe. There are of this genus also 

 3 otlier species in Europe, 2 in tropical America, and 1 ia 

 Guinea. Mr. Pursh's A. trivialis and A. parvijiora appear 

 to be only varieties of A. Plantago, For A. subiilfitii see 

 Sasrittaria. 



