HYDROPHYLLACEiE. (WATER-LEAF FAMILY.) 341 
blue or white, in one-sided cymes or racemes which are 
coiled from the apex when young : pedicels bractless. 
Synopsis. 
1. Hydrophyllum. Corolla convolute in the bud. Pod 1 -4-seed- 
ed, nearly filled by the 2 fleshy 2-ovuled placentae, which 
appear like an interior pericarp. 
2. Phacelia. Corolla imbricated in the bud. Pod 4-seeded, the 2 
placentae linear. 
3. Eutoca. Pod several-seeded, 8 - many-ovuled. 
1. HYDROPHYiLIJM, L. Water-leaf. 
Calyx 5-parted, and rarely with a small appendage in each si¬ 
nus. Corolla bell-shaped, 5-cleft, the lobes convolute in the bud ; 
the tube furnished with 5 longitudinal linear appendages opposite 
the lobes which cohere by their middle, while their edges are fold¬ 
ed inwards, forming a nectariferous groove. Stamens exserted : 
filaments more or less bearded. Ovary bristly-hairy (as is usual 
in the family); the 2 fleshy placentae expanded so as to line the 
cell and nearly fill the cavity, each bearing a pair of ovtiles on the 
inner face. Pod ripening 1-4 seeds, spherical. — Perennial 
herbs, from matted rootstocks, with petioled ample leaves, and 
white or pale blue cymose-clustered flowers. (Name compounded 
of v8a >p, water, and <j>v\\ov, leaf , of no obvious application to these 
plants.) 
* Sinuses of the calyx naked : filaments much longer than the corolla. 
1. H. macropliylluiu, Nutt. (Great Water-leaf.) 
Rough-hairy ; leaves oblong, pinnate and pinnatifid; the divisions 9-13, 
ovate, obtuse, coarsely cut-toothed ; peduncle very long ; calyx-lobes 
lanceolate-pointed from a broad base, very hairy. — Rocky, shaded 
banks, Ohio and south westward. July. — Root-leaves 1° long: cyme 
globular, crowded. 
2. H. Virginicum, L. (Virginian Water-leaf.) Smooth- 
ish ; leaves pinnately divided ; the divisions 5-7, ovate-lanceolate or o 
long, pointed, sharply cut-toothed, the lowest mostly 2-parted, the 
uppermost confluent; peduncles longer than the petioles of the upper 
leaves; calyx-lobes narrowly linear, bristly-ciliate. Damp rich 
woods, Maine to Wisconsin. June.—Rootstocks slender, nearly 
even : stems 1° high. Peduncles forked: clusters rather dense. 
3. H. Canadense, L. (Canadian Water-leaf.) Marly 
smooth; leaves palmately 5-7 -lobed, rounded, heart-shaped at the 
29 * 
