."334 lIYDUorilYl.I.ACE/i:, (WATKULKAF lAMIl.V.) 



lobes imbricattMl in tlio bud, ami (iflcii uitli rcllcxcd a])i)('n(lagcs in tin* 

 sinuses. Corolla obtusely .")-lol)c(l, convolule or inil)ricated in the bud. 

 Stamens T), inserted into the base of the eorolla, and alternate with its 

 lobes : antiiers versatile. Ovary free, 1-eelled, with 2 parietal pla<-enta;, 

 caeh bearin" 2 or more amphitropous ovules. Style slender, 2-(Iefl. 

 Capsule globose or oI)long. loculieidally 2-vaIved. Seeds retieulatcd. 

 Embryo small in the axis of hard albumen. 



Synopsis. 



• Lobes of tlie corolla convolute in the bail. 



1. IIVDllOniYLLUM. Calyx without appendages. Stamens exscrtcj. Stems erect. 



2. NEMOPllILA. Calyx appeudaged at the sinuses. Stamens included Stems prostrate. 



* * Lobes of tile corolla imbricated in the buJ. 

 8. PHAOELIA. Calyx without appendages. Capsule 4- many-serded. 



1. HYDROPHYLLUM, L. Wati-ri.f.af. 



Calyx 5-parted, the lobes subulate ; witliout appendages. Corolla broadly 

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

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

 Ovary hispid. Placentas 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-seedcd. — Erect perennial mostly hairy herbs, with long-petioled 

 pinnately or palmately divided leaves, and white or blue flowers in pedunclcd 

 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. Canadense, L. Sinoothi>h ; leaves orbicidar-cordate, palmately 

 5 - Tdobed, sharply toothed ; cymes dense, on forking peduncles which are 

 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 rcflexed appendages in the sinuses. Corolla tid:)ular or 

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

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

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

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

 clcd flowers opposite the leaves. 



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

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



