500 HYDROPHYLLACEAE 



26. Phacelia argentea Nels. & Macbr. Sand Dune Phacelia. Fig. 4085. 



Phacelia argentea Nels. & Macbr. Bot. Gaz. 61: 34. 1916. 



Phacelia heterophylla var. rotundata Dundas, Bull. S. Calif. Acad. 33: 156. 1935. 



Perennial, 1-3 dm. tall from a branched caudex, densely hirsutulous and appressed-hispid 

 throughout, the foliage silvery, the inflorescence softly hirsute; stems several, stout, prostrate 

 or ascending, simple. Leaves thick, the lower rosulate, oval to suborbicular, 2-5 cm. long, 

 2-4 cm. broad, entire or with a pair of much smaller lobes at the base, obtuse, the parallel 

 lateral veins deeply impressed above, the stout petiole usually shorter than the blade; flowers 

 numerous in dense corymbose or subcapitate cymes, the cymes 2-A cm. long, ascending in fruit ; 

 calyx-lobes oblong to oval, 3-4 mm. long, 1-2 mm. broad, densely hirsute, glistening, a little 

 enlarged in fruit; corolla yellowish white, 5-6 mm. long and broad; stamens 6-8 mm. long, 

 the filaments pubescent, the anthers 0.5 mm. long; style 6-8 mm. long, pubescent below; 

 capsule ovoid, about 3 mm. long, acute, hirsute; seeds 1 or 2, ovoid, 1.5-2 mm. long, brown. 



Coastal sand dunes. Humid Transition Zone; Coos County, Oregon, to Del Norte County, California. Type 

 locality: Chetco, Oregon. June-Aug. 



27. Phacelia heterophylla Pursh. Virgate Phacelia. Fig. 4086. 



Phacelia heterophylla Pursh, Fl. Amer. Sept. 140. 1814. 



Phacelia virgata Greene, Erythea 4: 54. 1896. 



Phacelia virgata var. ampliata Greene, op. cit. 55. 



Phacelia californica f. vinctens ]. F. Macbride, Contr. Gray Herb. No. 49: 37. 1917. 



Biennial (or weakly perennial), 3-12 dm. tall from a branched taproot, densely short- 

 pilose and appressed-hispid throughout, the foliage grayish green; stem usually simple, soli- 

 tary, and erect, or numerous supplementary shorter stems arising at its base. Lower leaves 

 lanceolate to ovate, 5-9 cm. long, 1.5-5 cm. broad, pinnate (rarely all entire), the terminal 

 leaflet much larger than the pairs of lateral leaflets, prominently veined, the petiole rather 

 stout, about equaling the blade; cauline leaves reduced upwards, at least the uppermost entire; 

 flowers numerous in a dense thyrsus of short cymes, the cymes 1-5 cm. long, ascending in fruit ; 

 calyx-lobes linear to linear-oblong, 3-4 mm. long, 0.5-1 mm. broad, densely yellowish-pilose 

 and hirsute-ciliate, in fruit 6-10 mm. long, 1-1.5 mm. broad; corolla yellowish or greenish 

 white, 4-5 mm. long and broad; stamens 8-10 mm. long, the filaments pubescent above the 

 middle, the anthers 0.5-0.7 mm. long; style 8-10 mm. long, puberulent toward the base; 

 capsule ovoid, 2.5-3 mm. long, hispid, acuminate; seeds 1 or 2, ovoid or oblong-ovoid, 2 mm. 

 long, brown. 



Rocky open places or in pine woods, Transition Zone; Montana and northwestern Wyoming to eastern Wash- 

 ington and western Oregon, south to Mendocino County and Lake Tahoe, California, east to Idaho, Wyoming, and 

 Utah. Type locality: "On dry hills on the banks of the Kooskoosky" (Clearwater River, Idaho). May-July. 



28. Phacelia leucophylla Terr. Silverleaf Phacelia. Fig. 4087. 



.' Phacelia hastata Dougl. ex Lehm. Stirp. Pug. 2: 20. 1830. 



Phacelia leucophylla Torr. ex Frem. Rep. 75. 1845. 



Phacelia canesccns Nutt. Journ. Acad. Phila. 1: 159. 1848. 



Phacelia Burkei Rydb. Bull. Torrey Club 36: 675. 1909. 



Phacelia magellanica f. angustifolia Brand, Pflanzenreich 4^^: 98. 1913. 



Perennial, 2-5 dm. tall from a branched caudex, canescent and appressed-hirsute or some- 

 what hispid throughout, the foliage silvery; stems few to numerous, ascending, simple or few- 

 branched. Lower leaves linear-lanceolate to ovate-lanceolate, 3-10 cm. long, 0.5-2.5 cm. 

 broad (those of sterile shoots often much smaller), mostly entire, prominently veined, the 

 petiole slender, about equaling the blade; cauline leaves entire, reduced upwards :_ flowers 

 numerous in dense, paniculate or racemose cymes, the cymes 2-10 cm. long, erect in fruit; 

 calyx-lobes linear-oblong to lanceolate, 3-6 mm. long, 0.5-1 mm. broad, canescent and hirsute 

 or more or less hispid, up to 8 mm. long in fruit; corolla white to lavender, 4-6 mm. long, 

 5-6 mm. broad; stamens 6-10 mm. long, the filaments pubescent at the middle, the anthers 

 0.5-0.7 mm. long; style 7-11 mm. long, pubescent toward the base; capsule ovoid, 3 mm. long, 

 acuminate, canescent ; seeds 1 or 2, oblong-ovoid, 2-2 . 5 mm. long, brown. 



Sandy or rocky soil in sagebrush or pine forest, Arid Transition and Upper Sonoran Zones; Montana to west- 

 ern Nebraska and Colorado, west to eastern British Columbia, and south through central and eastern Washington 

 and Oregon to northeastern California. Type locality: "Goat Island, upper North fork of the Platte" (Natrona 

 County, Wyoming). June-July. 



Phacelia leucophylla var. Suksdorfii J. F. Macbride, Contr. Gray Herb. No. 49: 34. 1917. Herbage usually 

 grayish green and strongly hispid; some leaves divided or toothed; calyx-lobes densely and harshly hispid. Along 

 the Columbia River east of the Cascade Mountains, central Washington and Oregon. Type locality: near Bingen, 

 Klickitat County, Washington. 



Phacelia alpina Rydb. Mem. N.Y. Bot. Gard. 1: 324. 1900. Lower and often dwarfed; leaves greenish, 

 sparsely strigose to somewhat sericeous; corolla usually lavender. Higher elevations, eastern Oregon to Mon- 

 tana, Nevada, and Utah. Type locality: Cedar Mountain, Montana. 



Phacelia magellanica f. compicta Brand, Univ. Calif. Pub. Bot. 4:217. 1912. Low, cespitose perennial, 

 densely white-hispid; leaves linear-oblong to oval; corolla usually white. Eastern slopes of the Cascade and Sierra 

 Nevada ranges, from central Oregon to Inyo County, California. Type locality: Douglas County, Nevada. 



29. Phacelia nemoralis Greene. Shade Phacelia. Fig. 4088. 



Phacelia nemoralis Greene, Pittonia 1 : 141. 1887. 

 Phacelia Biolettii Greene, op. cit. 5: 23. 1902. 



Biennial or weakly perennial, 5-15 dm. tall from a taproot, coarsely hispid throughout. 



