HYDRO PIIYLLACE^E. (WATERLEAF FAMILY.) 359 



1. E. Wyctdlea, L. Minutely or sparingly roughish-hairy, divergently 

 branched (6- 12' high) ; leaves piunately parted into 7-13 lanceolate or linear- 

 oblong sparingly cut-toothed divisions ; peduncles solitary in the forks or oppo- 

 site the leaves, 1-flowered ; calyx-lobes lanceolate, pointed, about the length <>f 

 the cylindraceous (whitish) corolla (in fruit ovate-lanceolate, nearly \' long) , 

 capsule pendulous. (E. amhigua, Xutt.; merely a slender form.) Shady 

 damp places, N. J. to Va., west to Minn, and Mo. May -July. 



4. PHACELIA, Juss. 



Calyx 5-parted ; the sinuses naked. Corolla open-bell-shaped, 5-lobed ; the 

 lobes imbricated in the bud. Filaments slender, often (with the 2-cleft stvle) 

 exserted ; anthers ovoid or oblong. Ovary with 2 narrow linear placentas ad- 

 herent to the walls, in fruit usually projecting inward more or less, the two 

 often forming an imperfect partition in the ovoid 4 -many seeded capsule. 

 (Ovules 2-30 on each placenta.) Perennial or mostly annual herbs, with 

 simple, lobed, or divided leaves, and often handsome (blue, purple, or white) 

 flowers in scorpioid raceme-like cymes. (Name from <[>d.Kf\os, a fascicle.) 



1. PHACELIA proper. Seeds and ovules only 4 (two on each placenta); 

 corolla campannlate, icith narrow folds or appendages within, the lobes entire. 



1. P. bipinnatifida, Michx. Biennial; stem upright, hairy (1-2 

 high), leaves long-petioled, pinnately 3-5-divided, the divisions or leaflets 

 ovate or oblong-ovate, acute, coarsely and often sparingly cut-lobecl or pin- 

 natifid; racemes elongated, loosely many -flowered, glandular-pubescent , pedi- 

 cels about the length of the calyx, spreading or recurved. Shaded banks, in 

 rich soil, Ohio to 111. and southward. May, June. Corolla bright blue, 6" 

 broad, with 5 pairs of longitudinal ciliate folds, covering as many externally 

 keeled deep grooves. Stamens bearded below and with the style exserted, 



2. COSMANTHUS. Ovules and seeds as in 1 ; corolla almost rotate, with 

 jimbriate lobes, and no appendages within: filaments villous-bearded, rarefy 

 exserted ; leaves pinnatifd, the upper clasping. 



2. P. Purshii, Buckley. Sparsely hairy ; stem erect or ascending, branched 

 (8- 12' high) ; lobes of the stem-leaves 5-9. oblong or lanceolate, acute ; raceme 

 many-flowered; calyx-lobes lance-lunar; corolla light blue, varying to white 

 (about I' in diameter). Moist wooded banks, W. Penn. to Minn., and south- 

 ward. April - June. 



3. P. fimbriata, Michx. Slightly hairy, slender: stems spreading or as- 

 cending (5 -8' long), few-leaved; lowest leaves 3-5-divided into roundish leaf- 

 lets ; the upper 5 - 7-cleft or cut-toothed, the lobes obtuse ; raceme 3 - \Q-flowered ; 

 cab/x-lobes linear-oblong, obtuse, becoming spatulate; corolla white (3-4" broad). 

 Woods, high mountains of Va. to Ala. May. 



3. COSMANTHOIDES. Ovules and seeds 2 -8 on each placenta; corolla 

 rotate or campanulale, with entire lobes and no appendages. 



4. P. parviflora, Pursh. Somewhat hairy, slender, diffusely spreading 

 (3-8' high) ; leaves pinnately cleft or the lower divided into 3-5 short lobes ; 

 racemes solitary, loosely 5-15-flowered, pedicels filiform, at length several 

 times longer thau the oblong calyx-lobes ; corolla open-campauulate, bluish- 



