Phacelia. HYDROPHYLLACE^. 159 



narrovv-campanulate blue corolla, exceeding the globular sparsely hirsute-pubescent cap- 

 sule : stamens and at length deeply 2-parted style included : appendages at base of fila- 

 ment short : seeds alveolate-reticulated. Proc. Am. Ac-ad, x. 017, & Bot. Calif, i. 506. 

 Nama racemosa, Kellogg, Proc. Ac-ad. Calif, v. 51. California, in the Sierra Nevada from 

 Calaveras to Nevada Co., at Cisco, Summit Station, &c., Bolander, Kellogg. Corolla and 

 capsule a line long. 



# * Leaves (as in the rest of the genus) all alternate: pubescence or some of it hispid or hirsute: 

 spikes or branches of the cyme scorpioid and dense: pedicels short or hardly any (except in P. 

 pedicellata) : appendages of the corolla broad and salient, usually more or less united at the base 

 of the filament. 



-1 Leaves all simple and entire, or some of the lower pinnately 3-5-partect or divided; the segments 

 or leaflets entire : capsule ovate, acute : seeds densely alveolate-punctate, upper end acutish. 



P. circinata, Jacq. f . Hispid and the foliage strigose, and either green or canescent, a 

 span to 2 feet high from a perennial or biennial root : leaves from lanceolate to ovate, 

 acute, pinnately and obliquely straight-veined ; the lower tapering into a petiole and com- 

 monly some of them witli one or two pairs of smaller lateral leaflets : inflorescence hispid ; 

 the dense spikes thyrsoid-congested : corolla whitish or bluish, moderately 5-lobed, longer 

 than the oblong-lanceolate or linear calyx-lobes : filaments much exserted, sparingly 

 bearded. Eclog. 135, t. 91 ; Benth. 1. c. ; A. DC. Prodr. 1. c., where see the older synonymy. 

 (Aldea circinata, Willd. Enum.) P. heteropliijlla, Pursh, Fl. i. 140. P. CaUjbriuca, Cham, in 

 Linn. iv. 495. P. hastata, Dougl. in Hook. Fl. ii. 80. P. leucophyUa, Torr. in Frein. Rep. 93. 

 P. canescens, Nutt. PL Gamb. 159, a dwarf very canescent state. Dry ground, Dakota to 

 British Columbia, New Mexico, and California. (S. to the Straits of Magellan.) Very 

 variable: dwarf forms sometimes with a naked scape-like stem. 



Var. calycosa, Gray, 1. c. Divisions of the calyx more foliaceous and ample, and 

 in fruit with narrowed base, oblong to obovate-spatulate, reticulated. California ; not rare 

 in the western part of the State, under otherwise varying forms. 



P. Breweri, Gray, 1. c. Resembling the preceding but smaller and slender, from an 

 annual root: corolla blue or violet, more broadly campanulate, nearly twice the length of 

 the linear calyx-lobes : filaments glabrous, a little shorter than the corolla. Monte Diablo, 

 California, on dry and soft sandstone, Brewer. Leaves seldom an inch long, exclusive of 

 the petiole of the lowermost ; many of them 8-5-parted ; the lanceolate lobes ascending. 

 Corolla barely 3 lines long. 



P. humilis, Torr. & Gray. Annual, diffusely branched from the base, a span high, 

 pubescent, or the inflorescence often hirsute : leaves spatulate-oblong or oblanceolate, 

 rather obtuse ; the lower rarely with one or two lateral ascending lobes, the veins branch- 

 ing : spikes loosely paniculate or solitary, in age rather slender : pedicels either all very 

 short, or the lower sometimes almost as long as the calyx : corolla indigo-blue, rather 

 deeply lobed, surpassing the usually linear calyx-lobes : filaments moderately exserted, 

 glabrous or sparingly bearded above. Pacif. R. Rep. ii. 122, t. 7 ; Watson, Bot. King, 250. 

 Sierra Nevada, California, from Siskiyou to Mariposa Co., and E. Nevada. Leaves an 

 inch or two in length. Corolla 2 or 3 lines long. 



Var. calycosa, Gray. A strict and slender form : corolla apparently pale : calyx- 

 lobes larger and spatulatc, as in the similar variety of P. circinata. Proc. Am. Acad. & 

 Bot. Calif, i. 507. E. side of the Sierra Nevada, near Mono Lake, Bolander. 



* H Leaves simple, all petioled, rounded-cordate, somewhat palmately lobed or incised, the lobes 

 serrate. 



P. malvaefolia, Cham. Rather tall and stout, from an annual ? root, hispid with spread- 

 ing or reflexed stinging bristles, and the foliage more or less pubescent: leaves (1 to 3 

 inches in diameter) green and membranaceous, round-cordate, incisely 5-9-lobed, acutely 

 toothed : somewhat palmately ribbed at base : spikes solitary or geminate : corolla (3 or 4 

 lines long) white, longer than the unequal linear and spatulate calyx-lobes : stamens ex- 

 serted : seeds alveolate-scabrous. Linn. iv. 494; Gray, 1. c. California, Bay of San 

 Francisco, Chiunisso, Kellor/y, G. R. Vasey. 



* 4 -i Leaves oblong or narrower in outline, pinnately toothed, lobed, or compound, and the 

 lobes or divisions toothed or incised: capsule globular "or ovoid, obtuse : seeds with excavated 

 ventral face divided by a salient ridge: annuals, or rarely biennials (or one perennial?), mostly 

 with cymosely or umbellately or thyrsoid congested spikes. 



w- Calyx, c., not setose-hispid: stamens and style more or less exserted. 



