358 HYDROPH YLLACE.fi. (WATERLEAF FAMILY.) 



1 long; peduncle shorter than the petiole; calyx-lobes lanceolate-pointed from 

 a broad base, very hairy ; flowers (6" long) crowded in a globular cluster ; an- 

 thers short-oblong. Rich woods, Ohio to Va. and Ala., west to the Missis- 

 sippi. July. 



2. H. Virginicum, L. Smoothish (1 - 2 high) ; leaves pinnately divided ; 

 the divisions 5-7, ovate-lanceolate or oblong, pointed, sharply cut-toothed, the 

 lowest mostly 2-parted, the uppermost confluent ; peduncles longer than the peti- 

 oles of the upper leaves, forked ; calyx-lobes narrowly linear, bristly-ciliate ; 

 flowers 3" long ; anthers oblong-linear. Rich woods. June - Aug. i 



3. H. Canadense, L. Nearly smooth (1 high); leaves (3-5' broad) 

 palmately 5 - 7-lobed, rounded, heart-shaped at base, unequally toothed, those 

 from the root sometimes with 2-3 small and scattered lateral leaflets ; pe- 

 duncles mostly shorter than the petioles, forked, the nearly white flowers on very 

 short pedicels ; calyx-lobes linear-awl-shaped, nearly smooth, often with minute 

 teeth in the sinuses. Damp rich woods, N. Eng. to the mountains of Va., and 

 west to the Mississippi. June - Aug. Rootstocks thickened and very strongly 

 toothed in 2 rows by the persistent bases of the stout petioles. 



* * Calyx with a small reflexed lobe in each sinus ; stamens little exserted. 



4. H. appendiculatum, Michx. Hairy ; stem-leaves palmately 5-lobed, 

 rounded, the lobes toothed and pointed, the lowest pinnately divided , cymes 

 rather loosely flowered; filiform pedicels and calyx bristly-hairy. Damp 

 woods, Ont. to mountains of N. C., west to Minn., Iowa, and Mo. June, July. 



2. NEMOPHILA, Nutt. 



Calyx 5-parted, with a reflexed appendage in each sinus, more or less en- 

 larged in fruit. Corolla bell-shaped or almost wheel-shaped ; the lobes convo- 

 lute in the bud ; the tube mostly with 10 small folds or scales inside. Stamens 

 included ; anthers ovoid or heart-shaped. Placentae ( bearing each 2-12 ovules ) , 

 capsule and seeds as in Hydrophyllum. Diffuse and fragile annuals, with 

 opposite or partly alternate pinnatifid or lobed leaves, and one-flowered pedun- 

 cles ; the corolla white, blue, or marked with purple. (Name composed of ye/ios, 

 a grove, and 4>i\4u>, to love.) Some handsome species are garden annuals. 



1 . N. micr6calyx, Fisch. & Meyer. Small, roughish-pubesceiit ; stems 

 diffusely spreading (2 - 8' long) ; leaves parted or deeply cleft into 3-5 round- 

 ish or wedge-obovate sparingly cut-lobed divisions, the upper leaves all alter- 

 nate ; peduncles opposite the leaves, shorter than the long petioles ; flowers 

 minute; corolla white, longer than the calyx ; placentae each 2-ovuled ; capsule 

 1 - 2-seeded. Moist woods, Va. to Fla., west to Ark. and Tex. April - June. 



3. ELLISIA, L. 



Calyx 5-parted, without appendages, enlarged and foliaceous in fruit. Co- 

 rolla bell-shaped or cylindraceous, not longer than the calyx, 5-lobed above ; 

 the lobes imbricated or convolute in the bud, the tube with 5 minute appen- 

 dages within. Stamens included. Placentae (each 2-ovuled), fruit, and seeds 

 much as in Hydrophyllum. Delicate and branching annuals, with lobed or 

 divided leaves, the lower opposite, and small whitish flowers. (Named for John 

 Ellis, a distinguished naturalist, an English correspondent of Linnaeus.) 



