HYDKOPHYLLACE^. (WATERLEAF FAMILY.) 355 



dense ; calyx lobes linear, hispid ; filaments slightly hair\-. — Low woods 

 along the mountains, Georgia, and nortliward. June. — Stem l°-2°high. 



2. H. Canadense, L. Smoothish ; leaves orbicular-cordate, palmately 

 5 - 7-lobed, sJiarply toothed ; cymes dense, on forking peduncles which are 

 shorter than the petioles ; calyx lobes sparingly hispid ; filaments densely 

 bearded. — Mountains of Georgia, and northward. June. — Stem 1° high. 

 Leaves 3'- 5' in diameter. Corolla white. 



3. H. macrophyllum, Nntt. Hirsute; stem stout (l°-2°high); 

 leaves long (6' - 10'), piunatifid, with distinct oval toothed lobes, the upper 

 lobes confluent; peduncle shorter than the petiole; cyme compact; calyx 

 lobes lanceolate-subulate ; corolla whiie. — Rich woods, Northern Alabama 

 and Mississippi, and northward. 



4. H. appendiculatum, Michx. Hirsute, erect, branching (1° high), 

 lowest leaves ])iunately divided, with toothed lobes, the others palmately 5- 

 lobed ; peduncles longer tlian the leaves, the cyme loosely flowered ; calyx 

 with short reflexed appendages between the subulate lobes ; corolla blue. — 

 Damp woods, mountains of North Carolina and Tennessee. May. 



2. NEMOPHILA, Nutt. 



Calyx 5-parted, with reflexed appendages in the sinuses. Corolla tubular 

 or short bell-shaped, with 10 scale-like appendages at the base of tiie filaments. 

 Stamens included: anthers ovoid. Ovary hispid, 2-12-ovuled. PlacentiE 

 large, lining the walls of the pericarp. Style 2-parted. Ca])sule globose, 1 - 

 2-seeded. — Tender prostrate annual herbs, with divided leaves, and solitary 

 long-peduncled flowers opposite the leaves. 



1. N. microcalyx, Fisch. & Meyer. Pubescent, or at length smoothish ; 

 stem filiform, diffuse ; leaves thin, long-petioled, 3-lobed ; the lowest mostly 

 opposite, and 3-5-lobed; flowers minute, white; ovary 4-ovuled ; capsule l- 

 2 seeded. — Shady woods, Florida, Georgia, and westward. April -June. — 

 Stem 3- 1° long. Leaves i'- I'long. Corolla 1" long. Seeds bony. 



3. PHACELIA, Juss. 



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

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

 long. Ovary 2 - many-ovuled ; the 2 narrow placentas often projecting inwards, 

 and forming an imperfect partition in fruit. Style 2-cleft. Capstile 2-valved, 

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

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



§ 1. Phacelia. — Ocules and seeds 4: corolla variousli/ appendaged ivitkin, 

 the 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 upper confluent ; racemes loosely man\--floAvered, 

 glandular; pedicels slender, recurved in fruit; calyx lobes linear, hispid; sta- 

 mens bearded below, longer than the corolla. — Shaded banks in the upper 

 districts. May- June. — Stem 6'- 12' high. Corolla blue, Y wide. 



