192 SAXIFRAGACEAE. 



Bolandra oregana Wats. Flowering stems 10-40 cm. high, the inflores- 

 cence glandular-pubescent; leaves reniform, angularly lobed, dentate, glabrous, 

 2-6 cm. broad; calyx large, campanulate, green or purple, the tube 5 mm. long, 

 the lanceolate lobes shorter; petals purple, lanceolate-attenuate, about 1 cm. 

 long; carpels scarcely diverging, conical, 1 cm. long. 



On wet cliffs in the gorge of the Columbia River and at the falls of the 

 Willamette, Oregon. The plant bears bulbils near the base. 



252. HEMIEVA. 



Glandular-puberulent perennial herbs with short bulbiferous 

 rootstocks; basal leaves ternately divided; cauline leaves with 

 more or less developed stipules; flowers in a cyme; calyx-tube 

 campanulate, adherent to the lower half of the ovary; sepals 5, 

 triangular-lanceolate; petals 5, obovate; stamens 5, opposite the 

 sepals, erect, on the outer margin of the disk; styles distinct; 

 ovary 2-celled, with axile placentae. 



Hemieva ranunculifolia (Hook.) Raf. Glandular-pubescent; stems 10-30 

 cm. high; basal leaves long-petioled, reniform, 3-parted, the segments cuneate 

 and incisely 3- or 4-lobed; middle cauline leaves similar but the petiole short 

 and broad; uppermost leaves sessile, 3-lobed, passing into the oblong bracts; 

 flowers white, in a compact cyme; calyx campanulate, its ovate lobes as 

 long; petals obovate, 6-7 mm. long. 



In the Cascade Mountains in rocky places at about 1700 m. altitude. 

 Bulblets are produced in the axils of some of the leaves. 



253. SULLIVANTIA. 



Slender acaulescent perennial herbs with small rootstocks 

 and scape-like stems; leaves alternate, all but one basal, reniform 

 to orbicular in outline, shallowly lobed and coarsely toothed, 

 cordate, long-petioled; flowers in panicled cymes; calyx-tube 

 campanulate, longer than the calyx; sepals 5, erect; corolla 

 whitish, regular, of 5 persistent clawed petals; stamens 5; ovary 

 half-inferior; follicles erect, enclosed in the calyx-tube. 



Sullivantia oregana Wats. Glandular-pubescent above; stems 10-20 cm. 

 high; leaves orbicular, cordate, obscurely lobed, incisely toothed, 2-5 cm. 

 broad, the slender petioles dilated at base; calyx campanulate with ovate 

 lobes; petals obovate, unguiculate, white, 1.5 mm. long; carpels thin, 4 mm. 

 long. 



On wet cliffs, Multnomah Falls and Elk Rock, Oregon. 



254. THEROFON. 



Glandular-pubescent perennial herbs with scaly rootstocks; 

 leaves reniform, cleft or lobed and dentate or crenate; stipules 

 foliaceous or bristle-like; flowers perfect, in panicles on leafy 

 lateral shoots; calyx- tube campanulate, urn-shaped or turbi- 

 nate, adnate to the lower half of the ovary; sepals 5, lanceolate 

 or ovate-lanceolate; petals 5, white, obovate or spatulate; stamens 

 5, opposite the sepals; styles 2, distinct, in fruit forming 2 diver- 



