334 lIYDrwOrilYLLACEJE. (v.'ATr.nLICAF I'AJIILV.) 



lobes imbricated in the bud, and often ivith reHcxod appendages in the 

 sinuses. Coro'.hi obtusely 5-lobed, convolute or imbricated in the bud. 

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

 lobes: antliers versatile. Ovary free, 1-eellcd, witli 2 i)arletal placenta?, 

 each bearing 2 or more amphitroi)ous ovules. Style slender, 2-cleft. 

 Capsule globose or oblong, loculicidally 2-valved. Seeds reticulated. 

 Embryo tmall i:i the axis of hard albumen. 



Synopsis. 



* Lobes of tlio corolla convolute in the bu J. 



1. IIYDilOPHYZiLUM. Calyx without appendages. Stamciis exscrtoJ. Stems erect. 



2. NEMOl'IIILA. Calyx appendaged at tlie sinuses. Stamens iucludtd. Stems prostrate. 



* * Lobes of the corolla imbricated in the bud. 



3. niACELI.V. Calyx without appendages. Cap^ulu 4 - many-str Jed. 



1. HYDROPHYLLUM, L. Waterleaf. 



Calyx .'i-partcd, the lobcj subulate ; without appendages. Coroll.a broatllj 

 tubular, 5-ck'ff, about as long as the calyx, witli .'5 linear appciulages on the 

 tube within, opposite the lobes. Stamens and stylo cxscrted : antliers linear. 

 Ovary iiispitl. Placentas 2, thick and (Icsliy, connected with tlic pericarp at 

 the base and apex ; eacli 2-ovulcd. Style filiform, 2-clcft. Capsule globose, 

 2-valvcd, 1 -4-sccdcd. — Erect perennial mostly hairy herbs, with long-pctioled 

 pinnatcly or palniatcly divided leaves, and white or blue Iloweis in pidunclcd 

 cymes, without bracts. 



1- II. Vil'Sinicum, L. Stem leadcss l);^]ow, sprinkled, like the leaves, 

 with ri^id hair; ; leaves pinnatcly divided into .') - 7 ovate cleft or toothed lobes, 

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

 lobes linear, hisjiid ; fdamcnts slightly hairy. — Low woods along the mountains, 

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



2. H. Canadense, L. Smoothish ; leaves orbicidar-cordate, palmatcly 

 5-7-lobcd, sliai-i>!y toothed; e3'mes dense, on forking pedimcles which are 

 shorter than the petioles ; calyx-Iobcs sparingly iiisjiid ; 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 .I-partcd, witli rcflcxcd appendages in tlic sinuses. Corolla tubular or 

 ghort bell-shaped, with 10 scale-like appcnd.igcs at the base of the filaments. 

 Stamens included : anthers ovoid. Ovary Iiispid, 2- 12ovulcd. I'lacenta; large, 

 lining the walls of the pericarp. Style 2-partcd. Capsule globose, 1 - 2-sccdcd. 

 — Tender pro-^tratc annual licibs, with divided leaves, and solitary long pcdun- 

 clcd fiowcrs o])positc the leaves. 



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

 stem filiform, dilVusc; leaves thin, long-petioled, alternate, 3lobud ; tiie lobes 



