HiDROrilYLLACE^i. (WATEBLKAP FAMILY.) 335 



obovate or wedge-shaped, cronately toothed ; the lowest ones mostly opposite, 

 and 3-5-lobed ; flowers minute, white, on slender spreading peduncles, which 

 are shorter than the petioles; ovary 4-ovuled ; capsule 1 -2-sccded. — Shady 

 woods, Florida, Georgia, and westward. April - June. — Stem 3' -1° long. 

 Leaves V - 1' long. Corolla 1 " long. Seeds bony. 



Juss. 



Calyx 5-parted, not appendaged in the sinuses. Corolla bell-shaped, 5-lohed, 

 imbricated in the bud. Stamens included or exserted : anthers ovoid or oblong. 

 Ovary 2 - many-ovuled ; the 2 narrow placentae often projecting inwards, and 

 forming an imperfect partition in fruit. Style 2-cleft. Capsule 2-valved, 4 - 

 many-seeded. — Low chiefly annual herbs, with alternate mostly pinnatcly 

 divided leaves, and white or blue flowers in one-sided racemes. 



§ 1. Phacelia. — Ovules and seeds 4 : corolla variously appendaged uiithin, Hie 



lobes entire. 



1. P. bipinnatifida, Michx. Hairy; stem erect, much branched ; leaves 

 long-petioled, "3-5-lobed. with the lobes oblong-ovate, acutely toothed ; the lower 

 ones short-stalked, the npper confluent ; racemes loosely many-flowered, gland- 

 ular ; pedicels slender, recurved in fruit ; calyx-lobes linear, hispid ; stamens 

 bearded below, equalling or longer than the corolla. — Shaded banks, Alabama 

 to North Carolina. May and June. — Stem 6' - 12' high. Corolla blue, h' wide. 

 { 2. Cos.MAXTiirs. — Ovules and seeds 4 : corolla not appendaged within, the lobes 



fimbriate: filaments hairy beloic. 



2. P. Pu.rsh.ii, Buckley. Stems erect or ascending, clustered, smooth 

 or hairy, branched ; leaves hirsute ; the lower ones pctioled, almost pinnate, the 

 upper clasping, pinnatifid, with the lobes acute ; racemes many-flowered ; calyx- 

 lobes lanceolate-linear, bristly-eiliatc ; corolla blue. (P. fimbriata, Pursh.) — 

 Shady banks, North Carolina, Tennessee, and northward. May and June. — 

 Stem 8' - 12' high. Corolla h' wide. 



3. P. fimbriata, Michx. Smoothish or slightly hairy ; stems spreading 

 or ascending ; leaves few, the lowest petiolcd, with 3-5 roundish leaflets ; the 

 upper ones pinnately 5- 7-lobed. with the lobes obtuse ; racemes 3 -10-flowered ; 

 calyx-lobes linear-oblong, obtuse; corolla white. — High mountains of North 

 Carolina, Miehaux, Buckley. May.. — Stems 5' -8' long. 



h 3. - Ectoca. — Ocules more than 4 : corolla usually with minute appendages 

 within, the lobes entire. 



4. P. parvifiora, Pursh. Pubescent ; stems several, spreading, branching; 

 leaves petioled ; the lowest 3 - 7-lobed, the upper 3-partcd ; racemes loosely 5- 

 15-flowcred ; pedicels slender, much longer than the calyx; calyx-lobes linear- 

 oblong, bristly-ciliate ; corolla small, pale-bine or white. — Shady bank-;, North 

 Carolina, and northward. April and May. — Stems 3' -8' high. Corolla 3" - 

 4' wide Capsule few-seeded. 



5 P. pusilla, Buckley. Pul>esccnt and somewhat glaucous ; stems as- 

 cending, branched; leaves sessile, pinnatifid. the segments obovate, abruptly 



