WATKRLKAI- 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. 



* Calyx with minute appendages if am/ : rootsfocks creeping, scaly-toothed. 



H. macr op helium. From Ohio W. & S. W. : rough-hairy, with leaves 

 pinnatcly divided into 9-13 cut-toothed divisions or leaflets ; a globular cluster 

 of flowers on a very long peduncle. 



H. Virginiciim. 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. Canaddnse. 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 arc longer than the peduncles of the flower-cluster. 

 * * Ca/i/x 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. NE1MOPHILA. (Name from the Greek, moans lover of the grow.) 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 lyratc-pinnatifid, upper .sparingly cut-toothed, and white corolla with 

 violet patch on each lob,>. 



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. TRUI-: PHACKLIA, with only 4 ortiles and seeds : lobes of corolla entire. 



P. congesta. Cult, from Texas, &e. : rather pubescent, with leaves pin- 

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

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

 slightly j.rotruding. i 



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

 pinnatifid leaflets, larger flowers in lon"er dense spikes, and long stamens, (f) 



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

 high, branched glnndular-hairv, 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 omits and seeds, and fringed lobes to corolla. 

 P. Plirshii. 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 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. KrjTOCA, with seeds or at leat ovules several or many : corolla-lobes entire. 



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 fev 

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



