44 



HYDROPHYLLACEAE. 



[Vol. III. 



2. Hydrophyllum macrophyllum Nutt. 

 Large-leaved Water-leaf. (Fig. 2997.) 



Hydrophyllum macrophyllum Nutt. Journ. Phila. 



Acad. 7: in. 1834. 



Perennial by scaly rootstocks, villous-hir- 

 sute all over; stem rather stout, 2-3 high. 

 Lower leaves long-petioled, 8'-i2' long, deeply 

 pinnatifid or pinnately divided into 7-13 oval or 

 ovate obtuse coarsely dentate segments i / -3 / 

 long; upper leaves similar, smaller, shorter- 

 petioled and with fewer segments; cymes long- 

 peduncled, simple or forked, very dense; pe- 

 duncles stout; pedicels short; flowers nearly 

 white; calyx cleft to below the middle, its lobes 

 lanceolate, erect, white-hispid, the sinuses not 

 appendaged; corolla 5 // -6 // long; anthers ob- 

 long; capsule globose, densely white-hispid, 

 about \y 2 " in diameter, enclosed by the calyx. 



In rich woods, Ohio to Alabama, west to Illinois 

 and Tennessee. Ascends to 4000 ft. in Virginia. 



3. Hydrophyllum appendiculatum Michx. 

 Appendaged Water-leaf. (Fig. 2998.) 



Hydrophyllum appendicitlatum Miehx. Fl. Bor. Am. 



1: 134. 1803. . 



Biennial, rough-hairy all over; stems slender, sim- 

 ple or usually branched, weak, i-2 long, somewhat 

 viscid above. Lower and basal leaves long-petioled, 

 pinnatifid or pinnately divided into 5-7 ovate or 

 oval, acute or obtusish, irregularly dentate or in- 

 cised, membranous segments; upper leaves smaller 

 and shorter-petioled, ovate to orbicular, variously 

 lobed, the lobes acute and dentate; cymes loose, 

 branched, the slender pedicels \"-\o" long; calyx 

 parted to near the base, enlarging in fruit, the seg- 

 ments triangular-lanceolate, acuminate, spreading, 

 with a short refiexed appendage in each sinus; 

 corolla violet or purple, 6 // ~7 // long; stamens little 

 exserted; capsule about i^ // in diameter. 



In woods, Ontario to North Carolina, west to Minne- 

 sota and Kansas. May-June. 



4. Hydrophyllum Canadense L,. 



Broad-leaved Water-leaf. (Fig. 2999.) 

 H. Canadense L. Syst. Ed. 10, no. 1. 1759. 



Perennial by scaly rootstocks; stems rather 

 slender, commonly simple, glabrous or nearly 

 so, i-2% high. Leaves nearly orbicular, cor- 

 date, sparingly pubescent, at least above, pal- 

 mately 5-9-lobed, the lower long-petioled, often 

 12' broad, occasionally with 1 or 2 pairs of 

 small segments on the petiole; upper leaves 

 smaller, but usually 6/-*]' broad; lobes ovate, 

 acuminate, dentate; peduncles shorter than the 

 leaves; cymes dense or becoming loose, simple 

 or forked; pedicels short, nearly glabrous; 

 calyx cleft nearly to the base, its segments 

 linear-lanceolate, acute, nearly or quite glabrous, 

 sometimes with a minute tooth in each sinus; 

 corolla campanulate-rotate, white to purplish 

 anthers linear-oblong; capsule 2" in diameter. 



In woods, Massachusetts and southern New York to North Carolina, west to Illinois. Ascends 

 to 4000 ft. in Virginia. June-Aug. 



