SAXIFRAGE FAMILY 351 



3. SUKSDORFIA A. Gray, Proc. Amer. Acad. 15:41. 1879. 



Slender glandular-pubescent perennials with leafy axial flowering shoots from a small 

 bulblet-bearing rootstock. Basal leaves reniform, merely crenate; cauline leaves stipulate. 

 Inflorescence a loose few-flowered panicle. Hypanthium at first obconic-campanulate, 

 becoming more deeplv campanulate, in fruit urceolate, adnate to the major portion of the 

 ovary. Sepals 5, oblong-lanceolate, erect. Petals 5, spatulate, entire or 2-3-lobed, at- 

 tenuated to a long claw, violet. Stamens 5, opposite the sepals; anthers almost sessile. 

 Ovary 2-celled, with many-ovuled axile placentae, almost wholly inferior; styles short, 

 more'or less erect; stigmas truncate. Capsule dehiscent between the styles. [Dedicated 

 to Wilhelm Suksdorf, for many years a collector and student of the flora of the Pacific 

 Northwest.] 



A monotypic genus restricted to the Pacific Northwest. 



1. Suksdorfia violacea A. Gray. Suksdorfia. Fig. 2226. 



Suksdorfia violacea A. Gray, Proc. Amer. Acad. IS: 42. 1879. 

 Hemieva violacea Wheelock, Bull. Torrey Club 23: 71. 1896. 



Slender perennial ; stem 1-3 dm. high, more or less glandular-pubescent. Basal leaves reni- 

 form with 5-7 rounded lobes, 1-3 cm. wide, more or less puberulent; petioles 2-8 cm. long, 

 glandular-puberulent ; lower cauline leaves similar with broad toothed stipules ; the upper sub- 

 sessile, cuneate and 1-4-toothed at the apex, the broad leaf-bases and the foliaceous stipules 

 often coalesced; inflorescence a more or less elongated, long-pedicelled, few-flowered panicle; 

 hypanthium obconic-campanulate, becoming broader, densely glandular, 2-3 mm. long, in fruit 

 urceolate and 4-7 mm. long; sepals oblong-lanceolate, 2-3 mm. long, often longer than the 

 hypanthium ; petals violet, 5-7 mm. long, spatulate, long-clawed and almost erect. 



Wet rocks near streams, Humid and Arid Transition Zones; Montana westward to the eastern slope of the 

 Cascade Mountains of Washington, south to northwestern Oregon. Type locality: along the Columbia Kiver, m 

 Washington, near the mouth of the White Salmon River. April-June. 



4. SULLIVANTIA Torr. & Gray, Amer. Journ. Sci. 42:22. 1842. 



Slender perennial herbs with small horizontal rootstocks and more or less leafy stems. 

 Leaves alternate, usually one or two from the base, reniform to orbicular in outline, more 

 or less shallowly lobed and often coarsely toothed, cordate at the base, long-petioled. 

 Flowers small, in paniculate cymules. Hypanthium campanulate, adnate to the lower 

 third to half of the ovary. Sepals 5, imbricate in the bud, erect. Corolla white or whitish, 

 regular. Petals 5, clawed, withering-persistent. Stamens 5, incurved; anthers reniform, 

 2-celled ; filaments short, broadened at the base. Ovary 2-celled, one-third to half inferior, 

 the valves united to the beaks. Follicles erect, well included in the drooping hypanthium, 

 the slightly divergent beaks alone protruding. Seeds wing-margined. [Dedicated to 

 William Starling Sullivant, 1803-1873, an American bryologist.] 



A North American genus of three snecies, two in the Middle West, one of these reaching Wyoming and 

 Colorado, and the following. Type species, Saxifraga Sullivantii Torr. & Gray. 



1. Sullivantia oregana S. Wats. Oregon Sullivantia. Fig. 2227. 



Sullivantia oregana S. Wats. Proc. Amer. Acad. 14: 292. 1879. 



Stems slender, 1-3 dm. high, smooth below, minutely glandular-pubescent above, usually 

 bearing about three leaves. Leaves reniform to reniform-orbicular in outline, 2.5-6 cm. wide, 

 glabrous, laciniately though not deeply cut into broadly cuneate lobes, the lobes coarsely and 

 laciniately toothed ; petioles glabrous, 5-10 cm. long, usually much longer than the leaves, with 

 small scarious stipules at their bases ; panicle 3-10 cm. long, with the exception of the flowers 

 minutely glandular-puberulent, the peduncles and pedicels subtended by linear-lanceolate folia- 

 ceous bracts; hypanthium glabrous, 2-3 mm. long, turbinate-campanulate, becoming rounded at 

 the base in fruit ; sepals ovate, about 1 mm. long, 1-nerved and greenish in the center and with 

 a wide colorless margin; petals 1.5-2 mm. long, rhombic-ovate in outline, abruptly narrowed to 

 a short wide claw ; follicles about 4 mm. long. 



Wet rocks and cliffs, Humid Transition Zone; evidently restricted to the Columbia River Gorge and the 

 lower Willamette River, Oregon. Type locality: banks of the Willamette River, near Oregon City, Oregon. 

 May-July. 



5. BOYKINIA Nutt. Journ. Acad. Phila. 7: 113. 1834. 



Glandular-pubescent perennial herbs with usually a basal tuft of leaves and leafy 

 lateral flowering shoots from a scaly rootstock. Leaves reniform. variously cleft or lobed 

 and dentate or crenate ; stipules usually present, either leafy or reduced to bristles. Flow- 

 ers in a usually leafy-bracteate paniculate or corymbose cyme. Hypanthium campanulate, 

 urceolate or turbinate, adnate to the lower half of the ovary. Sepals 5, lanceolate or 

 ovate-lanceolate, valvate. Petals 5, white, obovate or spatulate, usually narrowed to a 

 claw, usually soon deciduous. Stamens 5, opposite the sepals: anthers 2-celled: filaments 

 short. Ovary and capsule usually 2-celled, opening between the beaks ; styles 2. distinct 

 and in fruit 'forming two divergent beaks. Placentae axile; seeds numerous, ovoid, with 



