FENTANDRIA MONOGYNIA. 13§ 



173. MENYANTHES. Gen. pi. 299. 



1. M. foliis ternatis. Willd. sp. pL I. p. SI \. trifnliata. 



Icon, Engl. hot. 4Q5. Fl. dan. 541. Lam. illustr. t. ICO. 

 /.I. 



In bogs and stagnant waters : New Jersey, Virginia, Ca- 

 nada. 7/. June, July. v. v. Flowers pale red, very 

 handsome. 



174. VILLARSIA. Gmel.syst.veg.4A7. 



V. foliis reniformibus subpeltatis, subtus lacunosis na- 

 tantibus, petiolis floriferis, corollis glabris. Vent, 

 choix .le plant, p g. 



V. aqiiatica. Gmel. syst.veg.AAJ. 



Menyanihes trachysperma. Mich.fl.awcr. I. p. 126. 



Anonymos aqnatica. li^alt ji amer. IO9. 



In ponds and lakes, floating : New Jersey to Carolina. 

 ll . June, July. v. v. Flowers white. 



lacunosa. 



175. SPIGELIA 



Gen. pi. 272. 

 foliis omnibus oppositis. 



S. caule tetragono 



Icon. Bot. mag. 80. 



On the edges of woods, in rich moist soil : Maryland to 

 Carolina. 1/ . July, Aug. v. v. A beautiful peren- 

 nial, with large scarlet tlowers. The roots are sold, 

 under the name of Worvi-grass or Pink-root, in the 

 shops, and are really a must excellent medicine for 

 children, when troubled with worms. 



Willd. marilandica. 



176. OPHIORRHIZA. Gen. pi. 273. 



1, O. caule acutangulo, foliis sessilibus, cyma longius pe- 

 dunculata. Mich. Ji. amer. 1. p. 14S. IVUld. sp. 

 pL 1 . p. 826. 

 Cynoct.num. sessilifolium. Gmel. syst. veg.443. 

 Anonymos .sessilitolia. IValt.Ji. car. 108. 

 /B.C. petiolaium. Gmel. & Anonymos petiolata. JValt. 

 Icon. SwartzoOs. t. 3.f. 2. Lam. illustr. t. IO7./. 1. 

 In dry gravelly fields, on wood sides : Lower Virginia 

 to Carolina. % . July. v. v. Flowers pale blue, small. 

 I strongly suspect that Swartz's plant and JMichaux's 

 are two distinct species. 



Milreola. 



