S28 HYDROPHYLLACEJE. (\VATERI-EAF FAMILY.) 



Placenta? (each 2-ovuled), fruit, and seeds much as in Ilydrophyllum Delicate 

 and branching annuals, with lohcd or divided leaves, the lower oppcsite, and 

 sr.\:;!l whitish flowers. (Named for John El/is, a distinguished naturalist, long a 

 ondent of Linmvus.) 



1. E. Wj'C'tf'Iea, L. Minutely or sparingly roughish-hairy, divergently 

 branched (6'-li>' high) ; leaves ]>innatcly parted into 7-13 lanceolate or linear- 

 <>!>!ong sparingly cut-toothed divisions; peduncles solitary in the forks or oppo- 

 site the leaves, 1-llowered; ealyx-lohes 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, 3fr. Laniun) to Virginia, Illinois, and southwestward. May - 

 July. 



4. PHACELIA, Jiiss. (Plmcelia. & Eutoea, R. Br.) 



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

 lobes imbricated in the hud. 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 (^acceAos, a jaseide : the flowers 

 or racemes being often clustered.) 



1. PHACELTA PROPER. Seeds and ovules or?/?/ 4 (two on each placenta') : 

 corolla with narrow folds, append/ages, or scales icithin.; tJte lobes entire. 



1. P. bipillliatifida, 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 cnt-lobed or 

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

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

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

 tains. May, June. Corolla bright blue, y broad, with 5 pairs of longitudinal 

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

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



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

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

 fringe-toothed: jilaments villaus-bearded beloic : Itrt$ pinnatifid, the uj>/><r clatt/j- 

 in<] at, tin lase : flowers long-ped/cel/ed. 



2. P. 1'el.fshii, Buckley. Sparsely hairy; stem erect or ascending, 

 branched (8'- 12' high) ; lobes of the stem-Uave* 5-9, <>)>!oi>(/ or I<IHC<-C'<I!I , 

 raceme ma ny -flower cd ; ndi/r-lnhcs lance-linear; corolla him' (iihout V in diameter). 

 (J) (P. fimbriata, Ptirnh., not of AJichr. Cosmanthus fmiliriatus, .\/llr, $-c.) 

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



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

 ascending (5' -8' long), few-leaved; lowest leaves .3-5 t'ivu'jd into roundish 



