Saxifraga. SAXIFRAGACE;E. 575 



by leafy bracts. Flowers larjjo. Petals purplisli. Filaments scarcely lonpcr 

 than tlie oblor)<T anthers. — The (brm ami si/e of tlie petals seem to be (piitc 

 variable in this species. In the specimens eoUected bv Dr. .lames iIkv ;ire 

 orbicular wiiJi very slender daws, as oriyinally descrilM-d, at first a litilo 

 longer than the calyx-segments, but at lenuth coiisideral>ly exserled. As 

 described and figured by Hooker from Drummoiid's sjK'cimens, tiiey are 

 small, sj)atulato and acute. In our specimen, coUectcd l)v Drummond, the 

 petals are not uniform in shape, but are more commonly obtuse. 



43. S. Richardsonii (Hook.) : stem glandidar, pubescent near the summit ; 

 leaves on long petioles, orbicular-cordate, crenately lobed, veiny, the margins 

 and veins beneath beset with pedicellate glands; racemf- com|)ound, s^nne- 

 what spicate ; tlie peilicels and lanceolate bracts glanilular ; petals obovate- 

 elliptical, with short claws, nerved, very acute, nearly twice the length of 

 the acuminate segments of tiic calyx; stamens 5. Hook.! fl. Bor.-Ain. 1. 

 p. 247. S. Nelsoniana, Hook. UfArn.! bol. Beccltey, j). 124, /. 29, not of 

 Don. 



Arctic Sea-shore, near Mackenzie River, Dr. Richardson. Koiy.ebue's 

 Sound, Capt. Becchey I — A robust and handsome species, often a foot high. 

 The flowers are large and apparently white. 



44. (S. data (Nutt. mss.) : "more or less hirsute with long brownish hairs; 

 stem leafy, simi)le, tall and erect, smooth and cymosely branched above ; 

 the branches slender; leaves cordate, roundish, 5-7-lobed, acutely and in- 

 cisely serrate, petioled, with tufts of long ciiatfy hairs in tlie axils; pedun- 

 cles bracteate, viscid ; segments of the calyx lanceolate, acute, scarcely half 

 the length of the cuneate-oblong obtuse petals ; stamens 5. 



" In wet places near Chenook Point at the estuary of the Oregon, rare. 

 June. — A very remarkable robust species, 12-18 inches high, with acutely 

 lobed many-cleft veiny leaves, similar to some species of Ranunculus ; the 

 incised and unequal small serratures usually terminated by short, hairs. The 

 slender axillary flower-branches arise near the summit of the stem, and 

 tenninate in loose few-flowered cymes of small white pedicellate flowers. 

 Styles 2, rather short : about half of the ovary free." Nultall. — We have 

 not seen this species. 



45. S. ranunculifolia (Hook.) : somewhat glandularly pubescent, slender; 

 lower leaves on very long petioles, reniform, .3-parted, the segments broadly 

 cuneiform and incisely lobed ; those of the stem few ; flowers corymbose, 

 pentandrous ; petals obovate, twice the length of the glandular acute seg- 

 ments of the calyx. Hook. fl. Bor.-Am. l.p. 246, t. 83. 



Common on the high grounds around the Kettle Falls of the Oregon, and 

 on the Rocky Mountains, Douglas — Stem nearly a foot high, slender. 

 Petioles of the radical leaves bulbiferous at the base. Corymb compact. 

 Flowers white, as large as in S. stellaris. Hook. — This species is only known 

 to us through the figure and description of Hooker. Possibly a species of 

 Boykinia ; but it cannot be our B. occidentalis. 



46. S. ? Sullivantii : somewhat glandular ; stems or scapes declined, 

 slender, 1-2-leaved ; radical leaves reniform-orbicular, incisely dentate with 

 numerous broadly ovate teeth, and slightly lobed, nearly glabrous, veiny, on 

 long petioles ; cauline leaf similar but smaller, or the upper one nearly 

 sessile and bract-like ; flowers paniculate-cymose ; calyx glabrous, coherent 

 only with the base of the ovary ; the segments ovate, rather f)btuse, scarcely 

 half the length of the oval-spatulate distinctly unguiculate slightly acute 

 petals ; stamens 5, shorter than the calyx. 



Limestone clitTs, Highland County, Ohio, Mr. Wm. S. SuIIivanl ! May- 

 June.— Stems weak, diffuse or decumbent, about 6 inches in length. Radical 

 leaves 2 inches or more in widtli, reticulately radiate-veined, llie sinus at 



