100 HYDROPHYLLACE^E. Phacelia. 



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



exceeding the capsule : seeds minutely reticulated. 



P. integrifolia, Torr. A span to 2 feet high, strict, viscid-pubescent or hirsute, 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, 1. 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 Parry and Ward. 



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

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

 toothed or pinnatifid, sometimes lyrate 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- 

 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 high : 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-clef t style moderately or conspicuously exserted : seeds with the minute 

 reticulations even. Nutt. PL Gamb. 160 (very pubescent and viscid form); Gray, I.e. 

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

 quite entire). Eutoca ylandulosa, 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 erose-denticulate. P. Nco-Mcxicana, 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 petiolulate 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. conferta, Don. P. tnna- 

 cetifolia, A. DC. 1. c., as to pi. Tex. Borland. 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, villous. Extra-limital species, of Lower California. 



P. pedicellata. A foot or less high, villous or soft-hirsute and glandular: root 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 deflexed 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. Thomas H. Streets. 

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

 base, very leafy, canescent with soft-tomentose and some longer villous pubescence, not 

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

 divisions 9 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 



