342 HYDROPHYLLACEJE. (WATER-LEAF FAMILY.) 
base, unequally toothed; those from the root sometimes with 2-3 
small and scattered lateral leaflets ; peduncles much shorter than the 
long petioles , forked, the crowded flowers on very short pedicels; ca¬ 
lyx-lobes linear-awl-shaped, nearly smooth. — Damp rich woods, W. 
New England to Wisconsin, common northward. June, July.— 
Rootstock thickened and very strongly toothed in 2 rows by the per¬ 
sistent bases of the stout petioles : leaves 3' -5' broad. Corolla white 
or nearly so. 
* * Sinuses of the calyx with short reflexed appendages: filaments 
scarcely exceeding the corolla {nearly smooth). 
4. H. appencliculatum, Michx. (Hairy Water-leaf ) 
Hairy; stem-leaves palmately 5-lobed, rounded, the lobes toothed 
and pointed, the lowest pinnately divided; cymes rather loosely flow¬ 
ered ; pedicels (at length slender) and calyx bristly-hairy. (Nemo- 
phila panicul&ta, Spreng .)—Woods, Western States to Penn, and 
Monroe county, New York {Dr. Bradley). Corolla pale purplish-blue. 
2. PHACELIA, Juss. Phacelia. 
Calyx 5-parted ; the sinuses naked. Corolla open-bell-shaped, 
5-eleft, the lobes imbricated in the bud ; the scale-like appendages 
in the tube manifest or obsolete. Ovary with 2 linear adherent 
placentae, each 2-ovuled. Pod ovoid, 4-seeded. — Hairy herbs, 
with the flowers in one-sided often forked racemes or raceme-like 
cymes, usually pale blue. (Name from (pdiceXos, a fascicle , prob¬ 
ably in allusion to the clustered or forked racemes.) 
b P* bipinnatffida, Michx. Stem upright, branching, 
hairy; leaves long-petioled, pinnately 3-5 -divided; the divisions or 
leaflets ovate or oblong-ovate , acute , coarsely and often sparingly cut- 
lobed or pinnatifid ; racemes elongated, many-flowered ; pedicels 
about the length of the calyx ; lobes of the (bright bl ue) corolla entire, 
shorter than the bearded filaments, the tube with 10 folds inside. U 
Shaded banks, central Ohio and southward. May. — Plant 1 
high : corolla ^ broad. 
P* Purshii, Buckley. Stem upright or ascending, slender, 
sparsely hairy; lower leaves pinnate; the upper deeply pinnatifid', ses¬ 
sile and partly clasping ; the lobes lanceolate , acute or pointed , entire, 
raceme many-flowered ; pedicels elongated; calyx-lobes lanceolate-lin¬ 
ear, acutish , bristly-ciliate, shorter than the strongly laciniate-fringe 
blue corolla, which is nearly destitute of folds or scales inside. dD 
® (P. fimbrikta, Pursh., not of Michx. Cosmanthus fimbriatus, 
Jiolte.) — Moist copses and river-bottoms, from W. Penn, and Ohio 
southward and westward. April - June. — Plant 8' -12' high, with 
rather large and showy flowers. 
