bolaxdra. SAXIFRAG ACE.E, 197 



HEMIEVA. 



7 BOLVNDRA Gray Proc Am. Acad, vii, 341. 

 Perennial herbs with palmately veined, thin leaves and loose 

 panicles of purple flowers. Calyx broadly campanulate, 5-lobed, 

 valvate in the bud, the tube free from the ovary. Petals 5, 

 linear, entire, inserted in the throat of the calyx and alternate 

 with its lobes, persistent. Stamens 5, alternate with the petals: 

 filaments filiiorm : anthers cordate, 2-celled. Ovary included in 

 but wholly free from the inflated calyx, many-ovuled with the 

 placentae in the axis : stigma truncate. Capsule membranaceous, 

 ovate, with a broad 2-celled base. Seeds numerous, with a 

 rather loose testa. 



B. California Gray 1 c. Stems 6-18 inches high, weak and ascend- 

 ing apparently from a" filiform rootstock, granulate-bulblet-bearing at the 

 base of the stem, glabrous or nearly so: leaves alternate, membranaceous; 

 the lower round-reniform, 1-2 inches in diameter, about 5-lobed, on long- 

 filiform petioles; the upper sessile or clasping, merely incised or few- 

 toothed, gradually reduced upward to small ovate or lanceolate bracts, 

 borne on or subtending the slender 1-flowered somewhat paniculate pedun- 

 cles : petals dull purple, attenuated, 2 lines long. On wet rocks near the 

 Yosemite falls, California, said by Mr. VVheelock to have been found in 

 Oregon. 



B. Oregana Watson Proc Am Acad, xiv, 292. Minutely-pubescent 

 and glandular, at least above, stems slender, 6-20 inches high, from a 

 small bulbiliferous caudex : lower leaves round-reniform, incisely lobed 

 and toothed, 1-3 inches in diameter, on long slender petioles with dilated 

 stipule-like base; the upper similar but smaller, gradually passing into 

 sessile bracts: flowers rather numerous, in loose panicles, on slender 

 pedicels ; calyx inflated, campanulate, becoming urceolate, the tube 3-4 

 lines long, the subulate acuminate lobes, as long as the tube; petals dark 

 purple, filiform, 6 lines long or more; filaments a line or more long: cap- 

 sule ovate, the long acuminate beaks but slightly diverging, included in 

 the calyx; carpels united to the middle. On wet cliffs along the Colum- 

 bia river near the Cascades. 



8 HEMIEYA Raf. Fl. Tell, ii, 70. 

 SUKSDORFIA Gray Proc. Am. Acnd. xv, J,2. 



Low herbs with small bulb-like caudex, round lobed leaves 

 and few flowers in loose paniculate cymes. Calyx campanulate, 

 the tube coherent with the ovary, the 5 erect lobes imbricate in 

 the bud. Petals 5, alternate with the calyx-lobes, persistent. 

 Stamens 5, alternate with the petals. Ovary 2-celled, many- 

 ovuled, with the placentae in the axis. Stigma truncate. 



H. ranunculifolia Raf. I. c. Saxifraga ranunculifolia Hook. Pubes- 

 cent and glandular: stems erect, 6-12 inches high, from a small bulb-like 

 caudex, propagating by bulblets in the axils of the lowest leaves : lower 

 leaves round-cordate, 6-12 lines in diameter, 3-lobed, the lobes 3-9-toothed, 

 on long petioles with dilated base, upper ones similar, on short petioles, or 

 reduced to oblong or lanceolate bracts : flowers white, in a loose open or 

 short capitate cy mouse panicle; calyx campanulate, cleft to about the 

 middle, with oblong acute erect lobes; petals oblong, acute, attenuate 

 below to a short claw, 3-4 lines long; stamens 5, filaments less than a line 

 long: carpels united only near the base, the beaks diverging. On wet 

 cliffs on the highest mountains, Brit. Columbia to Oregon. 



