PENTANDRIA, DIGTN1 v. 1 17 



&. H YDROCOTYLE Con. pi. 457. (Uml ; .) 



Umbel simple. — Calix none. Petals entire, 

 spreading. Styles short: stigmas capitate. 

 Fruit saborfoicular or renifornij laterally 

 compressed. Seed tricostate, and ilat. dorr 

 sal ril) sometimes obsolete; commissure 

 ■at, linear, and immarginate. Invohterum 



various. — JYutt. 



1. H. leaves reniform* slightly r-lobed, crenate ; Americana. 



umbels few-How ercd, sessile. — Lamark. 



American Vcnnij-iuort. 



I m (uatic plant with very thin and delicate leaves, 



which dry transparent when prepared for the herbarium. In 

 ound, and on the borders of our rivers, 

 creeki and - : common. Flowers very small, greenish- 



white. Perennial June, July. 



ft. II. leaves peltate, crenate emarginate at the umbeUata. 

 base; umbels pedunculated, many-flowered, 

 flowers pedit ellated. 



I'mbclkd Fainy-wort. 



About the same si/e a> No. 1, and easily distinguished from 

 it by its umbeHated flowers. In similar places, frequent. Pe- 

 rennial. May, July. 



130. SAXICULA (.en. pi. 458. ("Umbel lifers. J 



Umbel nearly simple, rapitate. — Caliv 5- 

 parted. Petals and stamina inflected. 

 Fruit maricated, with uncinate seta?. Floic- 

 ers of the disk numerous, abortive. — J\*utt. 



1. 6. leaves digitate, leaflets oblong* incised ; fer-Mauiandka. 

 til<H<>w sa il< . generaUj by three's; sterile, 



"ii footstalks, numerous. — I'ursh. 



-ommon. Perennial. June. 

 13* 



