IGO IIYDROPHYLLACE.I:. Phacelia. 



= Pedicels short, when any, and erect in the fruiting spike : divisions of the calj'x entire, little 

 exceeding? the capsule: seeds minutely' reticulated. 



P. integrifolia, Torr. A span to 2 feet high, strict, viscid-pubescent or liirsute, very 

 leafy : leaves ovate-oblong or lanceolate, sessile or the lower short-petioled with a com- 

 monly subcordate base, simply or mostly doubly crenate-toothed, sometimes incised : spikes 

 crowded, at first thyrsoid : corolla narrow-campanulate, whitish or bluish : stamens and 

 style long-exserted ; the latter cleft to the middle : capsule short-ovoid. — Ann. Lye. N. Y. 

 ii. 222, t. 3, & Bot. Mex. Bound. 143; Watson, 1. c. — Gypseous soil, Colorado and N. W. 

 Texas to S. Utah and Arizona. (Adjacent Mex.) 



Var. Palmeri, Gray, l. c. A strict form, apparently from a biennial root, more hir- 

 sute and viscid : leaves more acutely sinuate-toothed : inflorescence thyrsoid-contracted. — 

 S. Utah, Palmer, Siler, and intermediate forms by Parr// and Ward. 



P. crenulata, Torr. A span or two high, often branched from the base and somewhat 

 spreading, viscid-pubescent or hirsute : leaves mainly pctioled, spatulate-obong, crenately 

 toothed or pinnatifid, sometimes iyrate and the lowest divisions distinct or nearly so ; the 

 lobes crenulate-toothed : spikes soon open and spreading : corolla rotate-campanulate, 

 bright violet or paler ; the internal appendages very broad : stamens moderately exserted : 

 style cleft far beyond the middle : capsule globular. — Watson, Bot. King, 251 ; Gray, 1. c. 

 — Rocky slopes. New Mexico to Arizona and N. W.Nevada. Flowers commonly deep- 

 ) » t^n/J colored, half-inch in diameter, and showy, sometimes considerably smaller and paler. 



^*'^ ■ P. glandulosa, Nutt. Viscid-pubescent and glandular, softly if at all hirsute, a span to 



a foot or more liigh : leaves irregularly and interruptedly twice pinnatifid, or below divided ; 

 the numerous lobes small, oblong, somewhat incised, obtuse : calyx-lobes oblong or spatu- 

 late: corolla (2 lines long) bluish, purplish, or white, with lobes shorter than the tube: 

 stamens and 2-cleft style moderately or conspicuously exserted : seeds with the minute 

 reticulations even. — Nutt. PI. Gamb. 160 (very pubescent and viscid form); Gray, 1. c. 

 P. Popei, Torr. & Gray, Pacif. R. Rep. ii. 172, t. 10 (less pubescent form, with corolla lobes 

 quite entire). Eutoca (jlandulosa, Hook. Kew Jour. Bot. iii. 293. — Gravelly soil, N. W. 

 Texas and Colorado to Arizona. (Mex.) 



Var. Neo-Mexicana, Gray, 1. c. Lobes of the corolla either slightly or conspicu- 

 ously eroso-denticulate. — P. Neo-Mexicana, Thurber in Bot. Mex. Bound. 143. — Colorado 

 and New Mexico. 



P. congesta. Hook. Pubescent and commonly cinereous, hardly in the least viscid or 

 glandular, a foot or more high : leaves pinnately 3-7-divided or parted, and with a few 

 interposed small lobes; the main divisions oblong or oval, incisely pinnatifid or irregularly 

 lobed ; the lower ones mostly pctiolulate and the upper confluent : calyx-lobes linear or 

 somewhat spatulate : corolla blue (3 lines long); the lobes as long as the tube : stamens 

 more or less exserted : seeds reticulate-scabrous, the fine sharp meshes being as it were 

 toothed at the junctions. — Bot. Mag. t. 3452 ; A. DC. 1. c. 240. P. ronferta, Don. P. tana- 

 cetifolla, A. DC. 1. c, as to pi. Tex. Berland. — Margin of thickets, &c., throughout Texas. 

 Not rarely cultivated. 



= = Pedicels slender and horizontal, or divisions of calyx 3-5-lobed, much longer than the cap- 

 sule, villdus. Extra-limital species, of Lower California. 



P. pedicellata. A foot or less high, villous or soft-hirsute and glandular ; not annual : 

 leaves pinnately 3-5-divided ; the divisions oval or oblong, incised and numerously toothed ; 

 the lower nearly sessile, the uppermost confluent or larger and .3-cleft : flowers much 

 crowded in short panicled or cymose-clustered racemes, small : pedicels filiform, about the 

 length of the flower, somewhat deflcxcd in fruit: calyx-lobes linear or in age oblanceolate, 

 entire, villous (as also the pedicel), hardly twice the length of the globular capsule : corolla 

 apparently white (little over 2 lines long), moderately surpassed by the stamens and 

 2-cleft style ; the internal appendages short and rounded : seeds rugose-reticulated and 

 somewhat tuberculate at maturity. — Lower California, Dr. TJiomaa II. Street.'!. 



P. phyllomanica. Gray. A foot or two high from a rigid (and possibly perennial) 

 base, very li'afy, canescent with soft-tomentose and some longer villous pubescence, not 

 glandular: leaves elongated-oblong in outline, pinnately parted or below divided; the 

 divisions to 18 pairs, linear-oblong, pinnatifid : the short lobes 1-2-toothed or entire : con- 

 densed spikes thyrsoid-crowded : flowers nearly sessile : calyx-lobes foliaceous, all or 2 or 3 

 of them pinnately 3-5-parted : corolla violet, a little longer than the calyx ; the expanded 



