WATEKLEAF FAMILY. 259 



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

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

 ers white or bluish-tinged, in early summer. ^ 



* CaJyx with minute appendages if ana : rootstocks creeping, scaly-toothed. 



H. maeroph^Uum. From Ohio W.&S.W. :, rough-hairy, with leaves 

 pinnately divided into 9-13 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. Canad^use. ChieflyN.: barely 1° high, nearly smooth, the roundish 

 leaves palraately 5-7-lobed and with heartrshaped base, or some minute leaflets 

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

 » * Calyx with a conspicuous rejlexed appendage in each sinus. 



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

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

 loose flower-clusters, and bristly-hairy calyx. 



2. HEMOPHILA. (Name from the Greek, means fowcro/'iAef^rowe.) Low 

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

 fl. summer. ® 



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

 ascending stems 1° - 2° long,' alternate leaves pinnately parted into '3 - 9 oblong 

 entire divisions, and purplish-blue corolla 1 J' broad. 



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

 toothed, and pure blue corolla 1' broad. 



If. macul^ta. Prostrate, with leaves all opposite and mostly sessjle, 

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

 violet patch on each lobe. , ■ 



M". atom^ria. 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. Tkue Phacelia, with 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 longer dense spikes, and long stamens. ® 



P. bipinnatiflda. Wild from Ohio S. & W. in. rich shady soil : 10-2° 

 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, (i) ® 

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



the next : slender, 8' - 1 2' high ; lobes of pinnatifid leaves several, lance-oblong, 



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



or whitish, ^' broad ; filaments hairy below. 

 P. flmbri^ta, the true plant grows only in the high Alleghanies S., is 



smaller, with 3^7 rounded or obloflg blunt divisions to the leaves, few and 



smaller white flowera 



§ 3. EtiTOCA, with seeds or at leant ovules several or many : corolla-lobes entire. 



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

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

 flowers on slender pedicels, bluish corolla less than J' wide, and few seeds. ® 



