22 



DIANDRIA MONOGTNIA, 



porulosa. 



Ugustrina. 



acuminata. 



30. BORYA. Willd.sp.pl.A.p.lW. 



1. B. foliis oblongo-lanceolatis obtusis sessilibus coriaceis, 



margine revolutis subtus punctatis. Willd. I. c. 

 Adelia porulosa, Mich fi. amer. 2. p. 224. 

 On the coast of Georgia and Florida. Tj . v. v. 



2. B. foliis ovato-lanceolatis acutis subsessilibus submem- 



branaceis. JViild I. c. 

 Adelia ligustrina. Mich. I. c. 

 In woods on river-sides in the Illinois country. T; . 



July, Aug. V. s. in Herb. Lyon. 



3. B. foliis ovato-lanceolatis futrinque attenuatis petiolatis 



membranaceis serrulatis. fVilld. I. c. 

 Adelia acuminata. Mich. I. c p. 225. 

 Icon. Mich. I. c. t. 48. 

 On banks of rivers in Carolina and Georgia. Ij . v. s. 



in Herb. Lyon. 



gibla. 



polyrhiza. 



31. LEMNA. Gen.pl. 1400. Duck-weed. 



1. L. foliis ellipticis utrinque planis basi cohaerentibus, ra- 



dicibus solitariis. IFilld. sp. pi. 4. p. 195. 

 Icon. Engl. bot. t. IO95. 

 In ditches and stagnant waters, common. 0. June, 



July. V. V. Floating ; flowers exceeding small. 



2. L. foliis ellipticis subtus buUato-convexis basi cohaeren- 



tibus, radicibus solitariis. IVilld. I. c. 

 Icon. Engl. bot. t. VloZ. 

 In similar situations, rare. ©.June, July. v.v.c.Ji. 



Observed near Liverpool in the western part of New 



York State, 



3. L. foliis ellipticis planis basi cohaerentibus, radicibus fas- 



ciculalis Willd. sp. pi. 4. p. I95. 

 Icon. Vail. par. t. 10. f. 2. 

 Common in ditches, &c. Q. July. Aug. v.v.s.fl. 



