PJiacelia. 



HYDROPIIYLLACE.E. 507 



common in dry open grounds, extending north to British ( 'olumhia, east to and beyond 

 •kv l\Ioiintains, southward into Mexico, and even to Patagonia. A very variable species ; 

 ,re dwarf states sometimes with nearly leafless and scape-like stem. The variety may be 



Var. calycosa, Oray, 1. c. Divisions of the calyx larj^er and more foliaceous, at 

 length with narrowed base, obovate-spatulate or oblong, when old reticulated. 



Very < 

 the Rod 



commmrirclufomirilniTtl^^^^^^^^ only in a cultivated' specimen raised by K HuU and 



wUd from Borax Lake (Torrcy), and foot-hills, Mariposa Co., A. Gray; also, a form with large 

 and green entire and ovate leaves, collected on the Mission hills, San Francisco, by Kdloij<j. 



3 P. Breweri, Gray, I. c Foliage, habit, and pubescence as in the foregoing, 

 but smaller and niore slender, from an annual root: leaves seldom an inch long, 

 many of them 3 - 5-parted, the lanceolate lateral lobes ascending : corolla (barely 3 

 lines long) more broadly campanulate, blue or violet, nearly twice the length of the 

 linear cafyx-lobes : hlaments glabrous, a little shorter than the corolla. 



On Monte Diablo, on dry and soft sandstone, Brexvcr. In character this approaches the Chilian 

 F. brachynnlha, Benth. ; but that has softer pubescence, broader and almost all entire leaves, 

 longer calyx, narrower corolla, and still shorter stamens. 



4 P humilis, Torr. & Gray. A span high, diffusely branched from a slender 

 annual "root, pu1)escent, or the inflorescence hirsute : leaves spatulate-oblong or 

 oblanceolate, rather obtuse, aU entire, or rarely some of the lower with 1 to 3 lateral 

 ascending lobes, the veins lax and sparingly branching: spikes at length slender, 

 soHtary or loosely panicled : corolla (2 or 3 lines long) bright indigo-blue, rather 

 deeply 5-lobed, surpassing the linear calyx-lobes : filaments moderately exscrted, 

 glabrous or bearded with very few hairs. — Pacif. E. Rep. n. 122, t. 7 ; Watson, 



Bot. King Exp. 250. •, , p -.i i, 



Var calycosa Gray, 1. c. A less-branched and more slender form, with corolla 

 apparently pale, and the calyx-lobes dilated-spatulate, as in the analogous variety 

 of P. circinata. 



Northeastern part of the State; Sierra and Nevada Counties at 5,000 to 6 000 feet (5ec^-H-//A, 

 Bolandcr, Lcmmon) : also in the adjacent parts of Nevada Anderso,,, mUson, &?• J/i« ^^i; 

 cahjcosa, from near Mono Lake, Bolandcr. Only in Bolauder s specimens have any divided leaves 

 been seen. 



^ +- Leaves simple, rounded and cordate, iiicisely lohed and serrate. 

 5. P. malvcefolia, Cham. Eather tall and stout, loosely branching, hispid with 

 spreading or reliexed stinging hairs, and the foliage more or less pubescent :^root 

 unknown • leaves green, membranaceous, all petioled, somewhat palmately 5-9- 

 lobed, acutely toothed (2 inches or more in diameter): spikes solitary or m pairs: 

 corolla (pale or white (?), 3 or 4 lines long) surpassing the unequal linear and spatu- 

 late calyx-lobes : stamens much exserted : seeds alveolate-scabrous. 



Bay of San Francisco, awmisso {Uunxa, iv. 494) ; not since detected, until lately coUected by 

 Dr. Kellogg, at Potrero. The bristles appear to sting like those of a Loasa. 

 4- ^- -i- Leaves once to thrice pinnatifid or pinnately covipoimd, oUong or narrmver 

 in general otUline : style 2-parted : corolla light violet or blue, varying to tvhite : 

 calyx {excejiting the first species) hristly-hispid, its lobes not rarely dissimilar. An- 

 nuals, the species difficult to discriminate. 



6 P crenulata, Torr. A span or a foot high, viscid-pubescent and very 

 Glandular, and the calyx hirsute but not hispid : leaves oblong or linear-oblong in 

 outline, crenatelv lobed or pinnatihd, or at base lyrately divided ; the lobes short 

 and rounded, the larger ones oblong and sometimes crenately incised : spikes clus- 

 tered: corolla rotate-campanulate, bright violet: stamens and style much exserted : 

 calvx-lobes oblong-linear or somewhat spatulate, equalling the globular capsule: 

 seeds with corky-thickened and transversely corrugated inflexed margins and central 

 rijo-e. — Watson, But. King Exp. 251. 



Near the border of the State in Washoe Co., Nevada, Lemmon. The deeply pinnatihd form : 

 occurs through Nevada to Arizona and New Mexico. 



