10 Rhode Island Plants. 



ALISMACE^]. 



821. Sagittaria heterophylla, Pursh. Smithfield ! Per- 

 haps I should follow Hooker in making this plant a variety of 

 S. sagittifolia. 



HYDROCHARIDACE.E. 



822. Udora verticillata, Sprang. Hook. Fl. Bor. Am. II. 

 p. 193. Udora Canadensis, Nutt. Gen. II. p. 242. Ponds and 

 sluggish streams ! 



SMILACEjE. 

 609. Polygonatum canaliculata, Pursh. I have never seen 

 in Rhode Island, and is, I believe, generally called a variety of 

 P. multiflorum. 



ORCHIDACE^. 

 591. Platanthera Hookeriana, Torr. Herb. Gr. in Ann. 

 Lye. of Nat. Hist. III. p. 229. P. Hookeri, Lindl. Hook. FL 

 Bor. Am. II. p. 196. P. orbiculata, Fr. So. Cat. No. 591. 

 Cumberland ! Mr. C. Fisher ! 



823. Pogonia pendula, Lindl. Hook. Fl. Bor. Am. II. p. 

 202. Triphora pendula, Nutt. Gen. II. p. 192. Smithfield, 

 Welcome A. Greene, Esq. ! 



LILIACEiE. 



824. Lilium superbum, Linn. Hook. Fl. Bor. Am. II. p. 181. 

 Very abundant ! 



JUNCACEAiE. 



825. Juncus effusus, Linn. Big. Fl. Bost. ed. 2, p. 13S. 

 Hook. Fl. Bor. Am. II. p. 190. Common in Rhode Island ! 



826. J. acuminatus, Michx.? 



827. J. polycephalus, Michx. Big. Fl. Bost. ed. 2, p. 140. 

 Hook. Fl. Bor. Am. II. p. 190. Common in Rhode Island ! 



828. J. bufonius, Linn. Big. Fl. Bost. ed. 2, p. 139. Hook. 

 Fl. Bor. Am. II. p. 191. Yery abundant in Rhode Island ! 



829. J. tenuis, Willd. Big. Fl. Bost. ed. 2, p. 138. Hook. 

 Fl. Bor. Am. II. p. 191. Yery abundant in Rhode Island ! 



830. J. marginatus, Rosth. Abundant in Rhode Island ! 



831. J. uliginosus, Sibth. Hook. Fl. Bor. Am. II. p. 191. J. 

 bulbosus, Linn. Big. Fl. Bost. ed. 2, p. 139. Abundant in 

 salt marshes, Rhode Island ! 



