HYDROPHYLLACE^. (WATERLEAF FAMILY.) 359 



1. E. Nyctelea, L. Miuutely or sparingly roughisli-hairy, divergentlv 

 brauched (G- 12 high) : leaves piuuately parted iuto 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, nearlv Y hjng) , 

 cajisule pendulous. (E. ambigua, NiitL; merely a slender form.) — Shady 

 damp places, N. J. to \'a., west to Minn, and Mo. May-Julv. 



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) 

 exserteil ; anthers ovoid or oblong. Ovary witli 2 narrow linear placenta 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 wliite) 

 flowers in scorpioid raceme-like cymes. (Name from (pa.K€\os, a fascicle.) 



§ 1. PHACELIA proper. Seeds and ovules onli/ 4 {two on each placenta); 

 corolla rampaniilate, icitli narrow folds or appendages icithin, the lobes entire. 



1. P. bipinnatifida, Michx. Biennial; stem uj)right, 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-loI)ed 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 manv externally 

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



§ 2. COSMAXTHUS. Ovules and seeds as in § 1 ; corolla almost rotate, icith 

 fimbriate lobes, and no appendages within: filaments villous-bearded,rarel ij 

 exserted ; leaves pinnatifid, 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 

 manyfiowered; cali/x-lobes lance-linear; corolla light blue, varving to wliite 

 (about Y ii' diameter). — Moist wooded banks, W. Penn. to Minn., and south- 

 ward. A]nMl-June. 



3. P. flmbriata, 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, tlie lobes obtuse ; raceme 3 - \Q-flowered ; 

 cali/x-lobes linear-ohlong, 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 a})pendages. 



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

 (3 - 8' high) ; leaves pinnately cleft or t'he 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- 



