Phacelia. IIYDROPHYI.LACE.E. 507 



Var. calycosa, < Iray, 1. c. Divisions of the calyx larger and more foliaceous, at 

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



Very common in dry open grounds, extending north to British Columbia, east to and beyond 

 the Rocky Mountains, southward into Mexico, and even to Patagonia. A very variable species : 

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

 common in California ; but thus far seen only in a cultivated specimen raised by E. Hall, and 

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

 and green entire and ovate leaves, collected on the Mission bills, San Francisco, by Killoytj. 



3. P. Breweri, Gray, 1. c Foliage, habit, and pubescence as in the foregoing, 

 but smaller and inure 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 calyx-lobes : tdaments glabrous, a little shorter than the corolla. 



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

 P. brachyantha, Benth. ; but that has softer pubescence, broader and almost all entire 1 

 longer calyx, narrower corolla, and still shorter stamens. 



4. P. humilis, Torr. i Cray. A span high, diffusely branched from a slender 

 annual root, pubescent, or the inflorescence hirsute : leaves spatulate-oblong or 

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

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

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

 deeply 5-lohed, surpassing the linear calyx-lobes : filaments mod. lately exserted, 

 glabrous or boarded with very few hairs. — Pacif. E. Eep. ii. l-i', t. 7; Watson, 

 Bot. King Exp. 250. 



Var. calycosa, < rray, 1. e. A less-branched and more slender form, with corolla 

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



of P. cirri,,, It, I. 



Northeastern part of the State ; Sierra and Nevada Counties, at 5,000 to 6,000 feet (Btchmth, 

 Bolander, Lcmmon): also in the adjacent parts of Nevada, Anderson, Watson, &c. The var. 

 calycosa, from near Mono Lake, Bolander. Only in Bolander's specimens have any divided leaves 

 been seen. 



-h +- Leaves simple, rounded and cordate, incisely lobed and serrate. 



5. P. malvEefolia, < ham. Rather tall and stout, loosely branching, hispid with 

 spreading or reflexed stinging hairs, and the foliage more or loss pubescent: root 

 unknown: leaves green, membranaceous, all petioled, somewhat palmatelv 5 — 9- 

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

 corolla (pale or white (t), 3 or 1 lines long) surpassing the unequal linear and spatu- 

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



Bay of San IV.uni i Liiiua i. iv. 4!>4) ; not since detected, until lately Collect 



Dr. Jkellogg, at Potrero. The bristles appear to sting lib t h. 



+- +- +- Leaves once to thria pinnatifid or pinnately compound, oblong or narrower 

 in general outline: stylt l! parted : corolla light violet or blue, varying to whiti : 

 calyx (excepting tht first species) bristly-hispid, its lobes not rarely dissimilar. An- 

 nuals, the species difficult to discriminate. 



6. P. crenulata, Torr. A span or a fool high, viscid-pubescenl and very 

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

 outline, crenately lobed or pinnatifid, or at base lyrately divided ; the lobes shorl 

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

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

 calyx-lobes oblong linear or somewhat spatulate, equalling the globular cap 

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

 ridge. — \Vats,.u, Bot. King Exp. 251. 



N. ii the bordei ol the £ Co., '■ The deeply pinnatifid form 



occurs through Nevada to \x\ oua and New Mexico. 



