Phacelia. HYDROPHYLLACE^. 159 



narrow-campanulate blue corolla, oxoeeding 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. Acad. x. 317, & Bot. Calif, i. 506. 

 Nama racemosa, Kellogg, Proc. Acad. Calif, v. 51. — California, in the Sierra Nevada from 

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

 capsule a line long. 



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

 spikes or branches of the cyme .scorpiuid and dense: pedicels sliort or hardly any (e.Kcejjt iu P. 

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

 of the filament. 



+- Leaves all simple and entire, or some of the lower pinnate!}' 3-5-parted 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 sti'igose, and either green or canescent, a 

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

 acute, i)innately and obliquely straiglit-veined ; the lower tajiering into a petiole and com- 

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

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

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

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

 (Aldea aranata, Willd. Enuni.) P. heterop/ii/lla, Pursh, Fi. i. 140. P. Culi/oniiai, Cham, in 

 Linn. iv. 495. P. husfata, Dougl. in Hook. Fl. ii. 80. P. leucoph/j/la, Torr. in Frem. Hep. 93. 

 P. canescens, Nutt. PI. Ganib. 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 anii)le, and 

 in fruit with narrowed base, oblong to obovate-sj^atulate, reticulated. — California ; not rare 

 in tlie western part of the State, under otlierwise 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 3-5-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 inllorescence 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 nsually 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 spatulate, as in the similar variety of P. circindta. — Proc. Am. Acad. & 

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



-1— H— Leaves simple, all petioled, rounded-cordate, somewhat palmatcly 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-lobcd, 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 caly.x-lobes : stamens ex- 

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

 Francisco, Chamisso, Kd/o'/;/, G. R. Vascy. 



-t— -i— -1— Leaves oblong or narrower in outline, pinnatcly toothed, lobed, or compotmd, and the 

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

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

 with cymoscly or umbellately or thyrsoid congested spikes. 



•H- Calyx, &c., not setose-hispid : stamens and stylo more or less exserted. 



