828 HYDROPHYLLACEiE. (wATERLEAF FAMILY.) 



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, long a 

 correspondent of Linneeus.) 



1 . E. Nyctelea, L. Minutely or sparingly roughish-hairy, divergently 

 branched (6' - 12' high) ; leaves pinnately parted into 7-13 lanceolate or linear- 

 oblong sparingly cut-toothed divisions ; peduncles solitary in the forks or oppo- 

 site the leaves, 1 -flowered ; calyx-lobes triangular, tapering to a sharp point, 

 nearly as long as the peduncle, longer than the whitish corolla, in fruit becom- 

 ing almost I' long. — Shady places, from Pennsylvania (opposite Trenton, 

 New Jersey, Mr. Laning) to Virginia, Illinois, and southwestward. May- 

 July. 



4. PHACELIA, Juss. (Phacelia & Eutoca, R. Br.) 



Calyx 5-parted ; the sinuses naked. Corolla open-bell-shaped, 5-lobcd; tna 

 lobes imbricated in the bud. Filaments slender, often (with the 2-cleft style) 

 exserted: anthers ovoid or oblong. Ovary with 2 narrow linear placentae ad- 

 herent to the walls, in fruit usually projecting inwards more or less, the two often 

 forming an imperfect partition in the ovoid 4 - many-seeded pod. (Ovules 2- 

 .30 on each placenta.) — Perennial or mostly annual herbs, with either simple, 

 lobed, or divided leaves, and commonly handsome (blue, purple, or white) 

 flowers in one-sided racemes. (Name from (pciK.e'Xos, a fascicle ; the flowers 

 or racemes being often clustered.) 



S 1. PHACELIA Proper. — Seeds and ovules only 4 (two on each placenta): 

 corolla with narrow folds, appendages, or scales within ; the lobes entire. 



1. P. bspiBSliatifida, Michx. Stem upright, much branched, hairy 

 (l°-2°high); leaves long-petioled, pinnately 3-5-divided; the divisions or 

 leaflets ovate or oblong-ovate, acute, coarsely and often sparingly cut-lobed or 

 pinnatifid ; racemes elongated, loosely many-flowered, glandular-pubescent ; 

 pedicels about the length of the calyx, spreading or recurved. % 1 — Shaded 

 banks, in rich soil, Ohio, Indiana, Kentucky, and southward along the moun- 

 tains. May, June. — Corolla bright blue, J' broad, with 5 pairs of longitudinal 

 folds. Stamens bearded below . these, with the style, are either somewhat in- 

 cluded (P. brevistylis, BucUey) or exserted in different individuals. 



§ 2. COSMANTHUS. (Cosmanthus, Nolte: Sect. Eucosmanthus, A. DC, 

 in part.) — Seeds and ovules only 4: corolla naked within; its lobes beautifully 

 fringe-toothed: fi laments villous-bearded below: leaves pinnatifid, the upper clasp- 

 ing at the buse : flowers long-pedicelled. 



2. P. Purslm, Buckley. Sparsely hairy; stem erect or ascending, 

 branched (8' -12' high) ; lobes of the stem-leaves 5-9, oblong or lanceolate, acute , 

 raceme many-flowered; calyx-lobes lance-linear; corolla blue (about $' in diameter). 

 (J) (P. fimbriata, Pursh., not of Michx. Cosmanthus fimbriatus, Nolte, Sec.) — 

 Moist wooded banks, W. Penn. to Illinois and southward. April- Jane. 



3. P. fiMltoBifuSa, Michx. Slightly hairy, slender; stems sj reading or 

 ascending (5' -8' long), few-leaved; lowest leaves 3 -5 -divided into roundish 



