34 MEMOIRS FEOM THE DEPAETMENT OF BOTANY OF COLUMBIA UNIVERSITY 



New Mexico : H. H. Rusby, No. 128, 1881. 



iMexico: E. Palmer, No. 426, 1885; C. G. Pringle, No. 1578, 1887. 



3. Potentilla fusca Sclileclit. 



PotentiUa Jumt ScMeclit. Linnaea, 13 : 262. 1839 ; Walp. Eep. 2 : 28 : Diet. Syn. PI. 3 : 185. 



Potentilla comariokles fiixca Lehm. Eev. Pot. 111. 18.56. Walp. Ann. 2 : 489. 1852. 



Potentilla Saematochrus Hemsley, Biol. Cent. Am. 1 : 376 (in part). 1880. 



Stem from a thick ligneous root, ascending, gra yisli-silky ; basal leaves petioled, digitately 7-folio- 

 late, green above, wMte-tomentose beneath ; leaflets oblong, attenuate at the base, obtuse, crenate 

 from the middle to the apex. Stem leaves subsessile, the upper ternate. Petals dark red, longer than 

 the lanceolate acuminate sepals. 



It grows in mountain meadows of Central Mexico : *Schiede, *Ehrenbei-g. 



4. Potentilla comarioides Humb. & BonpL 



Potentilla comarioides Humb. & Bonpl.; Nestler, Mon. Pot. 28 and 62. 1876. 



Schlecht. Linnaea, 13 : 262 ; Kunth, Nov. Gen. & Spec. PI. 4 : 217; Seringe in DC. Prod. 2 : 584 ; 

 Sprengel, Syst. Yeg. 2 : 539 ; Lehm. Mon. Pot. 26 137 ; Don, Gard. Diet. 2 : 556 ; Dietr. Syn. PI. 3 : 

 185 ; AYalp. Ann. 2 : 489 ; Poir. Suppl. 4 : 542 ; Hemsl. Biol. Cent. Am. 1 : 376. 



Potentilla rubra ^Vmd.; Schlecht. Mag. Ges. Xat. Fr. Berlin, 7 : 292.* 



Illustkatioxs : Xestl. Monogr. pZ. 4- /■ ^■ 



Stems ascending from a thick root, few-flowered and few-leaved, silky-canescent ; basal leaves 

 quinate, appressed-pilose or glabrate above, silverj' white beneath ; leaflets narrowly oblong, 3-5- 

 toothed at the apex ; stem leaves ternate ; bractlets oblong, acutish, shorter than the ovate acute 

 sepals. Petals broadly obcordate, twice as long aa the sepals, dark purple. 



In the mountains of Central and Southern ^Mexico : *Humboldt and Bonpland ; *Keerl ; 

 *Schiede ; *Ehrenbei-g. 



5. Potentilla Haematochrus Lehm. 



Potentilla Haemutochnis Lehm. Ind. Sem. Hort. Bot. Hamb. 1836 : 7. 1836. 



Lehm. Linnaea, 12 : Lit. 38 ; Knowles & AVestc. Fl. Cab. & Mag. Ex. Bot. 3 : 115* • Schlecht. 

 Linnaea, 13 : 263 ; Lehm. Rev. Pot. 110 ; Hemsley, Biol. Cent. Am. 1 : 376 ; Dietr. Syn. PI. 3 ; 185 • 

 AValp. Eep. 2 : 31. 



Potentilla Haematocliroa Walp. Ann. 2 : 489, 1852. 



Illusteatioxs : Knowles & AVestc. Fl. Cab. 3 : pi. 119 ; Lehm. Eev. Pot. pi. SO. 



Stem from a thick ligneous root, ascending, yellowish, subvelutinous and with longer, spreading or 

 reflexed hairs ; ba-sal leaves digitately 7-foliolate, petioled, yellowish, subvelutinous on both sides ; leaf- 

 lets obovate-oblanceolate or broadly oblong, crenate along the whole margin, and with prominent veins 



* The asterisk indicates that I have either not seen the specimen cited, or have not verified the citation 



