"WATEBLEAP TAMILT. 259 



1. HTDROPHYLLITM, 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. 2/ 



* Calyx mth minute appendages if any : 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. Virginieum. 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. Ganad^nse. 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 conspictums reflexed appendage in each sinus. 



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

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

 loose flower-clusters, and bristly-hairy calyx. 



2. NEMOPHILA. (Name from the Greek, means foi!er-q/'«^e (/roue.) 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^' broad. • 



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

 toothed, and pure blue corolla 1' broad. 



N. macul^ta. 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. Procumbent ; leaves opposite, pinnatifid ; corolla smaller, 

 white sprinlded with chocolate-brown spots. 



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

 cult, for ornament : fl. spring or summer. 



§ 1 . Tkub Phacbli a, loith 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-tootlied leaflets or lobes, and 

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

 slightly protruding. ® 



P, tanacetifolia, 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 : l°-2o 

 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. (T) ® 

 P. Purshii. 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, J' broad ; filaments hairy below. 

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



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



smaller white flowers. 



§ 3. E^TOCA, vrith seeds or at least 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 few 

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



