186 MEMOIES FROM THE DEPARTMENT OF BOTANY OF COLUMBIA UNIVERSITY 



2, 2 : 199 ; Willd. Sp. PI. 1: 1567; Lam. Fl. Franc. 3 : 643 ; Enc. Meth. 7: 152; Pers. 

 Syn. PL 1: 340; Spreng. Syst. Veg. 1: 956; DC. Prod. 2: 587; Roem. & Schult. Syst. 

 6 : 768 ; Dietr. Syn. PL 2 : 1019 : Don, Gard. Diet. 2 : 562. 



Pursh, FL Am. Sept. 211 ; Nutt. Gen. 1: 207; Eat. Man. Ed. 5; 391; Ed. 6, 337; 

 Ed. 7, 525; Torr. FL U. S. 330; Comp. 142; Frem. Rep. 89; Beck, Bot. 108; Torr. 

 & Gr. FL N. Am. 1: 433 ; Eat. & Wr. X. Am. Bot. 424 ; Oakes, Hovey's Mag. 13: 217; 

 Wood, Class Book, 343 ; Gray, Am. Jom-. Sci. (III.) 33 : 411 ; Proc. Acad. PhiL 1863: 

 61 ; Man. Ed. 1, 119; Ed. 2, 115; Ed. 5, 153; Wats. PL Wheeler, 37 ; Porter, Hayd. 

 Rep. 1870: 475; 1871 : 481 ; Porter & Coult. Fl. Col. 35; Brew. & Wats. Bot. Cal. 1: 

 180; Rothrock, Wheeler Surv. 4: 114; Coult. Man. Rocky Mts. 86; Rattan, An. Key 

 W. Coast. Bot. 52; Wats. & Coult. in Gray, Man. Ed. 6, 161 ; Britt. & Brown, 111. Fl. 2: 

 217. 



Cham. & Schecht. Linnaea, 2 : 28 ; Hook. Fl. Bor. Am. 1: 196 ; C. A. Meyer in 

 Rup. Beitr. Pfl. Russ. 6: 44; Aschers. Fl. Lab. in Regensb. Flora, 43 : 370*; Hook. f. 

 Arct. PL 289 ; Rothr. Fl. Alaska, 445 ; Provancher, Fl. Can. 1: 190 ; Macoun, Cat. Can. 

 PL 1: 135; Lange, Consp. Fl. Groen. 11 and 236; Rosenvinge, ibid. 656 ; Holz Cont. 

 U. S. Nat. Herb. 3 : 223 ; Ledeb. Fl. Ross. 2 : 32. 



Potentilla procumbens Clairv. Man. 166. 1811* Not Sibth. 



Benth. & Hook. Gen. PL 1 : 621 ; Baillon, Hist. PL 1: 371. 



Wood, Bot. & Flor. 107; Wats. Bot. King's Exp. 5 : 89 ; Greene, Fl. Fran. 1 : 62; 

 Coville, Cont. U. S. Nat. Herb. 3 : 339 ; 4 : 96. 



Illusteatioxs : Fl. Dan. pi. 32 ; Lam. 111. fl 221, f. 1; Gaertn. Fruct. & Sem. pi. 73; 

 Baillon, /. A2 3-^27 ; Eag. Bot. 13 : pi. 897 ; Sv. Bot. pi. 761 ; Braune, Fl. Salib. 3 : pi. 3* ; 

 Schkur, Handb. pi. 88; Sturm. Fl. Deutschl. 5 : ^>/. 17; Baxter, Brit. Bot. 6: pi. 470; 

 Britt. & Brown, 111. FL 2 : /. 1938. Plate 100, f. 1 ; dissection of flower, /. 2; pistil, /. 

 3; stamen, /. 4; fruiting hypanthium and calyx, /. .5. 



Densely cespitose, or with numerous creeping scaly rootstocks. Flowering stems 

 less that 1 dm. high, more or less hirsute-strigose, few-leaved. Stipules triangular-obo- 

 vate to lanceolate. Basal leaves on slender petioles, ternate, sparingly appressed-pilose ; 

 leaflets 1-2 cm. long, broadly cuneate, 3-5-toothed at the apex ; stem leaves similar but 

 short-petioled. Flowers few in rather dense cymes. Hypanthium 3-4 mm. in diameter, 

 somewlH pilose. Bractlets and sepals subequal, broadly oblong or ovate. Petals yellow, 

 spatulate, shorter than the sepals. 



Sibbaldla extends in America from Greenland to the White Mountains of New Hamp- 

 shire, British Columbia and Alaska, and in the alpine regions southward to Colorado 

 and Cahfornia. Also a native of arctic and alpine Europe and Siberia. 



