WATERLEAF FAMILY. 259 



1. HYDROPHYLLITM, 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. 11 



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



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

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

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

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



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

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

 loose flower-clusters, and bristly-hairy calyx. 



2. WEMOPHILA. (Name from the Greek, means Zower of (Ae^roi^e.) Low 

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

 fl. summer. (Y; 



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

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

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



T^. 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. atomkria. 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, with only 4 ovules and seeds : lobes of corolla entire. 



P. eong6sta. Cult, from Texas, &c. : rather pubescent, with leaves pin- 

 natcly 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 protrudng. ® 



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

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



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

 high, branched, glandular-hairv, with leaves twice pinnatcly divided into ovate 

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

 corolla ^' or more broad. ® 



§ 2. CosmAnthus, tvith 4 ovules and seeds, and fringed lobes to corolla. (T) d) 

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



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



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



or whitish, i' broad ; filaments hairy below. 



P. fimbri^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. EtTOCA, ivith seeds or at least ovules several or many : corolla-lobes entire. 



P. parviflora. Shaded banks from Perin. to N. Car. : scarce, delicate 

 little plant, 3'-G' high, with ])innately divided or cleft leaves, a raceme of few- 

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



