WATERLEAF FAMILY. 259 



1. HYDROPHYLLUM, WATERLEAF, is a translation of the name 

 from the Greek, the application obscure. Plants of rich woods, c. Flow- 

 ers white or hi uish- tinged, in early summer. 11 



* Calyx with minute appendages if any : rootstocks creeping, scaly-toothed. 



H. macroph^llum. From Ohio W. & S. W. : rough-hairy, with leaves 

 pinnately divided into 9-1.3 cut- toothed divisions or leaflets ; a globular cluster 

 of flowers on a very long peduncle. 



H. Virginicum. very common N. & "W. : smooth or smoothish, with 

 5-7 main divisions to the pinnate leaves, the lowest pair 2-parted, and calyx- 

 lobes bristly-ciliate. 



H. Caiiadense. Chiefly N. : barely 1 high, nearly smooth, the roundish 

 leaves palmately 5-7-lobed and with heart-shaped base, or some minute leaflets 

 on the petioles, which are longer than the peduncles of the flower-cluster. 

 * * Calyx with a conspicuous reflexed appendage in each sinus. 



H. appendiculatum. From New York W. & S. : pubescent or hairy, 

 with rounded palmately 5-lobed leaves or some of them pinnately divided, rather 

 loose flower-clusters, and bristly-hairy calyx. 



2. NEMOPHILA. (Name from the Greek, means lover of the grove.} Low 

 spreading plants cultivated for ornament ; all but the first from ^California : 

 fl. summer. 



N. phacelioides. Wild from Arkansas S., and sparingly cult. ; with 

 ascending stems l-2 long, alternate leaves pinnately parted into 3-9 oblong 

 entire divisions, and purplish-blue corolla l' broad. 



N. insignis. Slender, procumbent, with lobes of the pinnate leaves cut- 

 toothed, and pure blue corolla 1' broad. 



N. maculata. Prostrate, with leaves all opposite and mostly sessile, 

 the lower lyrate-pinnatifid, upper sparingly cut-toothed, and white corolla with 

 violet patch on each lobe. 



N. atomaria. Procumbent ; leaves opposite, pinnatifid ; corolla smaller, 

 white sprinkled with chocolate-brown spots. 



3. PHACELIA. (Name from Greek word for a cluster.) Several species 

 cult, for ornament : fl. spring or summer. 



1. TRUE PHACELIA, ivith only 4 ovules and seeds : lobes of corolla entire. 



P. COng^Sta. Cult, from Texas, &c. : rather pubescent, with leaves pin- 

 nately divided or cleft into few oblong or ovate cut- toothed leaflets or lobes, and 

 small blue flowers in 3 or 4 spikes at the summit of a slender peduncle ; stamens 

 slightly protruding. @ 



P. tanacetifblia, from California : taller, bristly-hairy, with narrower 

 pinnatifid leaflets, larger flowers in lonirer dense spikes, and long stamens. 



P. bipinnatifida. Wild from Ohio S. & W. in rich shady soil : l-2 

 high, branched, glandular-hairy, with leaves twice pinnately divided into ovate 

 cut-lobed leaflets, flowers slender pedicelled in long loose racemes, violet-blue 

 corolla ^' or more broad. 



2. COSMANTHUS, with 4 ovules and seeds, and fringed lobes to corolla. 

 P. Piirshii. Shady soil from Penn. W. & S. and cult, under the name of 



the next : slender, 8'- 12' high ; lobes of pinnatifid leaves several, lance-oblong, 



acute ; flowers of the raceme numerous, on slender pedicels ; corolla light blue 



or whitish, ' broad ; filaments hairy below. 



P. fimbriata, the true plant grows only in the high Alleghanies S., is 



smaller, with 3-7 rounded or oblong blunt divisions to the leaves, few and 



smaller white flowers. 



3. EtixocA, with seeds or at least ovules several or mam/ : corolla-lobes entire. A / 

 P. parviflbra. Shaded banks from Penn. to N. Car. : scarce, delicate 

 little plant, 3' -6' high, with pinnately divided or cleft leaves, a raceme of few 

 flowers on slender pedicels, bluish corolla less than ' wide, and few seeds, d) 



