ROSE FAMILY 189 



3165; Little Bear Valley, San Bernardino Mts., Chandler; Tahquitz Valley, San Jacinto Mts., 

 Jepson 2297; French Valley, Palomar Mt., Hall 1946; Laguna Mts., e. San Diego Co., T. 

 Brandegee. 



Var. elmeri Jepson comb. n. Stems scantily villous; leaflets pectinately divided deeply or 

 often almost to the midrib into linear-oblong segments, white-silky beneath or greenish silky. — 

 Meadows, 4200 to 7600 feet: mountains bordering Avest side of Mohave Desert; east side or high 

 easterly valleys of the Sierra Nevada in Fresno and Inyo Cos. East to Utah. 



Locs. — Bear Lake, San Bernardino Mts., Munz 10,458; Mt. Pinos, Hall 6419; Lower Hot 

 Sprs., South Fork San Joaquin Kiver, Jepson 13,185 ; Bishop Creek, Inyo Co., SliocTcley 436. 



Eefs. — PoTENTiLLA GRACILIS Dougl. ; Hook. Bot. Mag. pi. 2984 (1830), type loc. banks of 

 the Columbia River, Douglas; Eydb. Mem. Dept. Bot. Columbia Univ. 2 :68, pi. 24 (1898) ; Jepson, 

 Man. 489 (1925) in part. P. gracilis var. iypica Wolf, Biblio. Bot. 16":211 (1908). P. Uasch- 

 Tceana Turcz. ; Lehm. Hamb. Gart. & Blumenz. 9:506 (1853), type loc. Eussian settlement, i. e. Ft. 

 Boss, Blaschlce; Lehm. Eev. Pot. 107, t. 64 (1856). P. gracilis var. ilaschkeana Jepson, Man. 489 

 (1925) in part. Var. hallii Wolf, Biblio. Bot. 16":211 (1908) ; Jepson, Man. 489 (1925). P. 

 hallii Eydb. Bull. Torr. Club 28:176 (1901), type loc. Pine Eidge, Fresno Co., Hall ^ Chandler 

 182. P. dascia Eydb. N. Am. Fl. 22:313 (1908), type loc. The Dalles, Ore., Harford 4r Dunn 

 1144. P. gracilis var. rigida Wats. Proc. Am. Acad. 8:557 (1873), in part; Jepson, Man. 489 

 (1925) in part; not P. rigida Nutt. (1818) or P. nuttallii Lehm. (1851). P. angustata Eydb. N. 

 Am. Fl. 22 :311 (1908), type loc. upper Sacramento Eiver, F. H. Foster. P. suhvillosa Eydb. I.e. 

 316 (1908), type loc. Carson Spur, Alpine Co., Hansen 297 (leaflets more deeply dissected). P. 

 lasia Eydb. N. Am. Fl. 22:314 (1908), type loc. Bear Valley, San Bernardino Mts., Parish 3252 

 (leaflets few-toothed). P. etomentosa Eydb. Bull. Torr. Club 24:8 (1897), type from Cal., Fre- 

 mont 162. P. amadorensis Eydb. N. Am. Fl. 22:312 (1908), type loc. Bear Eiver, Amador Co., 

 Hansen 1946. P. gracilis var. blaschkeana Jepson, Man. 489 (1925), in part; not P. blaschkeana 

 Turcz. (1853). P. iaheri Eydb. Bull. Torr. Club 31:560 (1904), type loc. Grizzly Creek, Colo., 

 C. F. Baker; (at least as to California spms. so determined by Eydberg) . P. comosa Eydb. N. Am. 

 Fl. 22:316 (1908), type loc. Bear Valley, San Bernardino Mts., Parish 3152 (pubescence of stems 

 and petioles very dense, spreading). P. parishii Eydb. I.e. 313, type loc. Descanso, San Diego Co., 

 Parish 4523. P. hassei Eydb. I.e. 329 (1908), type loc. Strawberry Valley, Mt. San Jacinto, Eiver- 

 side Co. (formerly San Diego Co.), Hasse 5696. P. gracilis var. fastigiata Jepson, Man. 489 

 (1925), in part; not P. fastigiata Nutt. (1840). Var. elmeri Jepson. P. elmeri Eydb. N. Am, 

 Fl. 22:315 (1908), type loc. Mt. Pinos, n. Ventura Co., Elmer 4009. P. gracilis var. Uasch- 

 Tceana Jepson, Man. 489 (1925), in part; not P. blaschkeana Turcz. (1853). Perhaps P. pectini- 

 secta Eydb. Bull. Torr. Club 24:7 (1897), type loc. (ace. N. Am. Fl. 22:317,-1908) Salt Lake 

 City, Utah, Jones 1765. 



PoTENTiLLA RECTA L. Sp. PI. 497 (1753), type from Italy. This European species differs 

 from the American P. gracilis complex in the characteristic pubescence of the stems (which con- 

 sists of both long and short hairs), and in the short thick styles. — Adventive: Saratoga, Santa 

 Clara Co., Pendleton. 



22. P. flabellifonnis Lehm. Spread Cinquefoil. Stems strictly erect or 

 nearly so, 1% to 2^2 feet high, thinly silky-strigose; leaves digitate, green above 

 and appressed-hairy, white below with a felt-like tomentum, the veins silky-hairy; 

 leaflets 5 to 7, 2^ to 3^2 inches long, pectinately divided into narrowly linear lobes, 

 the lobes spreading, generally stiffish and with finely revolute margins; cyme 

 mostly loose, sometimes dense, usually many-flowered, at first congested, later 

 corymbose-spreading ; flowers 7 to 8 lines broad ; petals yellow, obcordate, a little 

 exceeding the calyx-lobes; stamens 20; styles slender, slightly dilated at base; 

 achenes many, smooth. 



Mountain valleys, 300 to 4500 feet : Modoc Co. North to British Columbia and 

 Saskatchewan, east to Wj'oming. June-July. 



Locs. — Forestdale, If. S. Balcer ; Egg Lake, BaTcer 4r Nutting. 



Tax. note. — No tj^Q specimen was named for Potentilla flabelliformis var. ctenophora Eydb. 

 but examination of nine specimens from the New York Botanical Garden Herbarium so annotated 

 by Eydberg indicates that the segregate very well represents P. flabelliformis as understood by 

 Lehmann. It is not synonymous with P. blaschkeana Turcz. as later disposed of by Eydberg. This 

 latter plant as indicated by the original illustration and description is a variant of the P. gracilis 

 group. The Inyo County specimen cited below as the type of var. inyoensis shows on the whole a 

 closer relation to P. flabelliformis than to P. gracilis, although it is in many respects similar to 

 P. gracilis var. elmeri of the same region, and perhaps a parallel variant. — E. K. Crum. 



Var. inyoensis Jepson var. n. Leaflets sparsely hairy beneath (rarely sparingly tomentulose) , 

 the segments broader, the margin not revolute. — Wet meadows, 4000 to 4400 feet: Inyo Co. 

 (Bishop, Hall ^ Chandler 7279, type; White Mts., Duran 2503). 



