328 HTDROPHTLLACE^. (WATEELEAF FAMILY.) 



Placentse (each 2-ovuled), fruit, and seeds much as in Hydrophyllum. — Delicata 

 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 Linnteus.) "* 



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

 branched (6'- 12' high) ; loaves pinnatoly 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 iieduncle, longer than the whitish corolla, in fruit becom- 

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

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

 July. 



4. PHACtlLiIA, Juss. (Phacelia & Entoca, R. Br.) 



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

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

 cxserted : anthers ovoid or oblong. Ovary with 2 naiTow linear placenta: ad- 

 herent to the walls, in fmit 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 cither simple, 

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

 flowers in one-sided racemes. (Name from <paKe\os. a fascicle; the flowers 

 or racemes being often clustered.) 



§ 1. PHACELIA Proper. — Seeds and ovules only 4 [tioo on each placenta') : 

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



1. I*, bipinnatifitla, Michx. Stem upright, much branched, hairy 

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

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

 pinnatifid ; racemes elongated, loosely raany-floworcd, glandular-pubescent; 

 pedicels about the length of the calyx, spreading or recurved. H. ? — Shaded 

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

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

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

 cluded (P. brevistylis, Buckley} or cxserted in different individuals. 



« 2. COSlStANTHTJS. (Cosmanthus, Nolle. Sect. Eucosmanthus, A. DC, 

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

 fringe-toothed: filaments villous-bearded below : leaves pinnatifid, the upper clasp~ 

 itig at the base : fiowers long-pedicelled. 



2. P. Pursllii, 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 J' in diameter), 

 g) (P. fimbriata, Pursh,, not of Michx. Cosmanthus fimbriatus, Nolte, ^c.) — 

 Moist wooded banks, "VV. Pcnn. to Illinois and southward. April-June. 



3. P. filllltl'iatai, Michx. Slightly hairy, slender; stems spreading or 

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



