186 MEMOIRS FROM THE DEPARTMENT OF BOTANY OF COLUMBIA UNIVERSITY 
2, 2. 199; Willd: Sp. Pied: 1567; ams il rane) 3204370 Ene: Methat- 152. seers: 
Syn. Pl. 1: 340; Spreng. Syst. Veg. 1: 956; DC. Prod. 2: 587; Roem. & Schult. Syst. 
168; Diett. Syn. Pl: 2: 1019; Don, Garde Wict 2% 562: 
Pursh, te Am. Sept. 211; Nutt. Gen. 1: 207; Eat. Man. Ed. 5; 391; Ed. 6, Be 
Hd) 7, 525: Lorr. Hl. U. 8. 330; Comp. 142; Erem. Rep. 89; Beck, Bot 108); Vorr. 
& Gr. Fl. N. Am. 1: 433; Eat. & Wr. N. Am. Bot. 424; Oakes, Hovey’s Mag. 13: 217; 
Wood, Class Book, 343; Gray, Am. Jour. Sci. (III.) 33: 411; Proc. Acad. Phil. 1863: 
Clee Many vEidis ian): 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, sea Surv. 4: 114; Coult. Man. Rocky Mts. 86; Rattan, An. Key 
W. Coast. Bot. 52; Wats. & oo in Gray, Man. Ed. 6, 161; Britt. & Brown, Ill. Fl. 2: 
ZAM 
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. 
Aret. Pl. 289; Rothr. Fl. Alaska, 445; Provancher, Fl. Can. 1: 190; ee Cat. Can. 
Pl. 1: 185; Lange, Consp. Fl. Groen. 11 and 236; Rosenvinge, ibid. 656; Holz Cont. 
WS; Nat. Herb. 322237. Wuedeb: Fl. Ross..2 =) 32: 
Potentilla procumbens Clairy. 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. 
Inuustrations: Fl. Dan. pl. 32 ; ia Ill. pl. 221, f. 1; Gaertn. Fr uct. & Sem. pl. 73 ; 
Baillon, f. 423-427 ; Eng. Bot. 13: pl. 897 ; Sv. Bot. pl. 761; Braune, Fl. Salib. 3: pl. 3* ; 
Schkur, Handb. on 88; Sturm. Fl. Deutschl. 5: pl. 17; Baxter, Brit. Bot. 6: pl. 470; 
Britt. & Brown, Ill. Fl. 2: f. 1938.. Puate 100, f. 1; dissection of flower, f. 2; pistil, f- 
3; stamen, f. 4; fruiting hypanthium and calyx, f. 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 ee 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, 
somewhat pilose. Bractlets and sepals subequal, broadly oblong or ovate. Petals yellow, 
spatulate, shorter than the sepals. 
Sibbaldia extends in America from Greenland to the White Moweraine of New Hamp- 
shire, British Columbia and Alaska, and in the alpine regions southward to Colorado 
and California. Also a native of arctic and alpine Europe and Siberia. 
