■WATKRI.KAF 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 bluish-tinged, in early summer, y. 



* Ca[i/r with minute appaidar/ns if ani/ : rootitochs creeping, scaly-toothed. 



H. maeroph;^Hum. 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 ealyx- 

 lobes bristly-ciliate. 



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

 leaves palmatcly 5-7-lobed and with heart-shaped base, or some minute.Ieaflets 

 on the petioles, which arc longer than the peduticles of the flower-cluster. 

 * » Calyx with a conspicuous reflexed appendage in rack sinus. 



H. appendicul&,tuin. From New York W. & S. . pubescent or hairy, 

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

 loose flower-clusters, and bristly-hairy, calyx. 



2. NEMOPHIIiA. (Name from the Greek, means tela- o/'rtejrraw.) Low 

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

 fl. summer. ® 



N. phaeelioides. 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 I^' broad. 



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

 toothed, and pure blue corolla 1' broad. 



N. maculita. 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. atom^ria. Prscumbent ; leaves opposite, pinnatifid ; corolla smaller, 

 white sprinkled with chocolate-brown spots. 



3. PH ACELI A. (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 : lubes 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. (T) 



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

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



,P. bipinnatiflda. 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. CosmAkthcs, with 4 ovuks and seed-:, and fringed lobes to corolla, (i) ® 

 P. Pdrshii. 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. flrnbrid,ta, 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. EfiTOCA, with seeds or at lea^t ovules several or ma/ny : corolla-lobes rntire. 



P. parvifl6ra. 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 lev,- seeds. @ 



