HYDROPHYLLACE^. (WATERLEAF FAMILY.) 359 



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

 branched (6- 12' high) ; leaves pinnately 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 of 

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

 capsule pendulous. (E. ambigua, Nutt.; 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 style) 

 exserted ; anthers ovoid or oblong. Ovary with 2 narrow linear placentae 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 <pa.K\os, a fascicle.) 



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

 corolla campanulate, with 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-lobed 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 

 flmbriate lobes, and no appendages within; filaments villous-bearded, rarely 

 exserted ; leaves pinnatifid, the upper clasping. 



2. P. Pti.rshii, 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-linear; corolla light blue, varying to white 

 (about y 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 ; 

 calyx-lobes linear-oblong, obtuse, becoming spatulate,* corolla white (3 - 4" broad). 

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



3. COSMANTHOlDES. Ovules and seeds 2 - 8 on each placenta ,- corolla 

 rotate or campanulate, with entire lobes and no appendages. 



4. P. parvifl6ra, Pursh. Somewhat hairy, slender, diffusely spreading 

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

 racemes solitary, loosely 5 - 1 5-flowered ; pedicels filiform, at length several 

 times longer than the oblong calyx-lobes ; corolla open-campanulate, bluish- ^ 



