334 HYDROPHTLLACEiE. (WATEKLEAF FAMILY.) 



lobes imbricated in the bud, and often Tvith reflexed appendages in the 

 sinuses. Corolla obtusely 5-lobed, convolute or imbricated in the bud. 

 Stamens 5, inserted into the base of the corolla, and alternate with its 

 lobes : anthers versatile. Ovarj'- free, 1-celled, with 2 parietal placentae, 

 each bearing 2 or moi'e amphitropous ovules. Style slender, 2-cleft. 

 Capsule globose or oblong, loeulicidally 2-valvod. Seeds reticulated. 

 Embryo small in the axis of hard albumen. 



Synopsis. 



* Lobes of the corolla convolute in the bud. 



1. HYDllOPUTLLUM. Calyx without appendages. Stamens exserted. Stems erect. 



2. NEMOPHILA. Calyx appendaged at the sinuses. Stamens included. Stems prostrate. 



4 * Lobes of the corolla imbricated in the bud. 



3. PHACELIA. Calyx without appendages. Capsule 4 - many -seeded. 



1. HYDROPHYLLUM, L. Wateeleaf. 



Calyx 5-parted, the lobes subulate ; without appendages. Corolla broadly 

 tubular, 5-eleft, about as long as the calyx, with 5 linear appendages on the 

 tube within, opposite the lobes. Stamens and style exserted : anthers linear. 

 Ovary hispid. Placentae 2, thick and fleshy, connected with the pericarp at 

 the base and apex ; each 2-ovuled. Style filiform, 2-clcft. Capsule globose, 

 2-valved, 1-4-secded. — Erect perennial mostly hairy herbs, with long-petioled 

 pinnately or palmately divided leaves, aud white or blue flowers in peduncled 

 cymes, without bracts. 



1. H. Virginicum, L. Stem leafless below, sprinkled, like the leaves, 

 with rigid hairs ; leaves pinnately divided into .5-7 ovate cleft or toothed lobes, 

 paler beneath ; peduncles forking, longer than the petioles; cymes dense; calyx- 

 lobes linear, hispid ; filaments slightly hairy. — Low woods along the mountains, 

 Georgia, and northward. June. — Stem l°-2° high. 



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

 5 - 7-lobed, sharply toothed ; cymes dense, on forking peduncles which arc 

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

 bearded. — Mountains of North Carolina, Tennessee, and northward. June. — 

 Stem 1° high. Leaves 3'- 5' in diameter. Corolla white. 



2. NEMOPHILA, Nutt. 



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

 sjiort bell-shaped, with 10 scale-like appendages at the base of the filaments. 

 Stamens included ; anthers ovoid. Ovary hispid, 2- 12-ovuled. Placentae large, 

 lining the walls of the pericarp. Style 2-parted. Capsule globose, 1 - 2-seeded. 

 — Tender prostrate annual herbs, with divided leaves, and solitary long pedun- 

 cled flowers opposite the leaves. 



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

 stem filiform, diffuse ; leaves thin, long-petioled, alternate, 3-lobed ; the lobes 



