Saxifraga. SAXTFRAGACEyE. 565 



3-cuspiclate, witli cartilag^inous points, the margins very sliglitly ciliatc ; 

 flowers somewhat corymhose, tlie pedunrles rather sliort and ripid ; sepals 

 ovate, somewhat eoriaceous ; jjetals ol)ovale-()l)lc)ii2, not sjmtted [puiuiate 

 with numerous dots in speeimens, and acrordiii!! to Pursh iff Jkni], longer 

 than the calyx ; cai)sule ovoid, apicuhite with tin- eonieal diverging styles; 

 stigmas somewhat capitate. Serin <re. — " Rdz,])rudr.Jl. Srand. ; liottb. art. 

 Hufn. 10. j}' 44G, t. (J;" Pursh! Jl. 1. p. 312; Fi. Dan. t. 970; Don! 

 Saxifr. I. c. 2>- 440; Scringe, in DCprodr. 4. p. 47 ; Hook.! Jl. Bor.-Am. 

 I. p. 254. 



fi. smaller in all its parts. Hook. I. c. — S. Clianiissoi, Sternb. rev. Saxifr. 

 suppl. p. 12, /. 10. 



Arctic and Suharctic America, from Greenland ! and Hudson's Bay ! to 

 the N. W. Coast ! south to Lake Winipep, lat. 50°, ex Hook. fi. Unalasch- 

 ka, Chamisso ; and on iNIonnt Hooil, Doualas, ex Hook. — Flowers large, 

 white according to Pursli and Seringe ; yellow according to Don. 



7. S. Pseudo-Burseriana (Fischer ! mss.) : ca-spitose, much branehefl from 

 the base; sterile branches short and crowded; leaves flat, linear-s])atulate, 

 raucronate, strongly ciliate, densely imbricated ; tliose of the flowering 

 branches numerous, scattered ; sepals nearly distinct, ovate, rather obtuse, 

 glabrous, shorter than oval-obovate not unguiculate somewhat 3-nerved pe- 

 tals ; ovary short ; styles very' short, stiginatic along the inside. 



Unalasclika and Bay of St. Lawrence, Chamisso. — Stems 3-4 inches 

 high. Leaves 2-3 lines in length, very densely imbricated on the sterile 

 stems, coriaceous, obscurely l-ners^ed, glabrous. Flowers few, small. — We 

 know not whether any description of this species has been published: ours 

 is drawn from a speciinen collected in Kamtschatka. It is enumerated 

 among the plants of Chamisso's collection in the Linneea, 6. p. 555. 



8. S. aizoides (Linn.) : stems cfcspitose, leafy ; leaves linear, more or less 

 ^ ciliate, slightly mucronate, thick ; flowers jjaniculate, sometimes solitary' ; 

 sepals ovate ; petals oblong, longer tlian the calyx, yellow or orange-color, 

 often dotted ; stigmas depressed ; capsule rather thick, as long as tlie styles ; 

 seeds ovate-triqiietrous, minutely rugose. Seringe. — Smith, Engl. hot. t. 39 ; 

 Wahl.fl.Lapp.p.llb; Pursh ! jl. 1. p. 312; Don, Saxifr. I. c. p. 376; 

 Seringe! in DC. prodr. 4. p. 47; Hook.! jl. Bor.-Am. 1. p. 255. S. 

 autumnaUs, Linn. ! I. c. ; Fl. Dan. t. 72. 



Arctic America! and from Greenland to Labrador! Newfoundland! 

 and the Island of Anticosti. Alpuie rivulets on the Rocky Mountains, 

 Drummond ! 



§ 3. Caudex perennial, leafy : leaves persistent, the margins not punctate nor 

 cartilaginous: jloicering stems annual, somewhat leafy: sepals united 

 below and coherent with the base of the ovary : cilia of the leaves articulated.— 

 Dactyloidcs, Tausch. 



9. 6'. cfEspitosa (Linn.) : caespitose ; leaves 3-5-cleft, the uppermost linear 



' and entire, glandularly pubescent ; the segments broadly linear, obtuse, not 



pointed : flowering stems Avith a few scattered leaves, glandular, 1-4-flow- 



ered ; tube of the calyx adherent to tlie ovary ; petals obovate, 3-nerved, 



twice the length of the calyx. Hook. ! jl. Bor.-Am. 1. p. 244. 



a. stems 2-3-flowered. ' Hook.! I. c.—S. caespitosa, Linn; Don, Saxifr. 

 I. c; Pursh! jl. 1. p. 312; Wahl. Jl. Lapp. p. 119. S. Gra^ilandica, 

 Linn. ; Seringe, in DC. prodr. 4. /;. 27. 



fi. stems 1-flowered. Hook. I. r.— S. uniflor? R. Br. in Parrfs 1st voy. 

 suppl. p. 274. S. caespitosa, Engl. hot. t. 764 ; Seringe, I. c. S. venosa, 

 Haw. enum. Saxifr. p. 28. 



