MEMOIRS FROM THE DEPARTMENT OF BOTANY OF COLUMBIA UNIVERSITY 109 
94. Potentilla Richardii Lehm. 
Potentilla Richardii Lehm. Ind. Sem. Hort. Bot. Hamb. 1849: 6, 1849. 
Lehm. Stirp. Pug. 9: 1; Rev. Pot. 26; Hemsley, Biol. Cent. Am. 1: 376; Walp. Ann. 2: 471. 
Potentilla ancistifolia Galeotti, Coll. Pl. Mex. No. 3078, fide Lehmann, J. ¢. 
InLustRATION: Lehm. Rev. Pot. pl. 5, f. 1. 
Stems short, ascending or erect, few-flowered, hirsute, with spreading hairs. Basal leaves pin- 
nate; leaflets about 3 pairs, hairy, with few spreading hairs, cuneate-flabelliform, incised or deeply 
5-7-toothed at the end with broadly oblong teeth. Petals yellow, obcordate, nearly twice as long as 
the sepals. 
Central Mexico: *J. Linden, No. 661 (Orizaba); *H. Galeotti, No. 3078. 
95. Potentilla Cascadensis. 
Stem erect or ascending from a perennial rootstock, simple, with 2-3 small leaves, 
slightly strigose or glabrate, strict. Stipules very large, broadly ovate, 10-15 mm. long, 
the lower ones brown and scarious and covering the ascending rootstock. Basal leaves 
pinnate; leaflets 3-6 pairs, slightly silky-strigose or in age glabrate, 1-2 cm. long, 
broadly cuneate to nearly orbicular in outline, deeply incised with ovate teeth at the 
apex. Stem leaves small, with 1-2 pairs of leaflets. Hypanthium silky-hirsute or strigose, 
in fruit about 1 em. in diameter; bractlets oblong to oval, two-thirds the length of the 
broadly lanceolate acute sepals. Petals yellow, obcordate, about a fourth exceeding the 
sepals. 
I have had much doubt as to whether this plant is or is not a valid species. It is 
intermediate between P. Plattensis, Drummondii, multijuga and Brewert. In leaf form 
and general habit it is nearest to P. Brewer, from which it differs in the kind of pubes- 
cence, viz., in P. Cascadensis silky and mostly appressed, in P. Breweri woolly. It differs 
from P. Plattensis in the broader and less lobed leaflets, the more upright and less leafly 
stem and larger flowers. It differs from. P. ma/tijuga in the small number of leaflets 
and the larger flowers; from P. Drummondii in the smaller size of the leaflets. The 
specimens examined are: 
Washington: Suksdorf, No. 2165, 1892 (type; Chiquash Mts. of the Cascades). 
California: J.G. Lemmon, No. 84, 1875, and Nos. 966 and 969, 1875 (Lassen’s Peak). 
British Columbia: Macoun, No. 7310, 1889. 
96. Potentilla Drummondii [ehm. 
Potentilla Drummondii Lehm. Stirp. Pug. 2: 9. 1830. 
Hat. Man. Ed. 7: 458; Torr. & Gray, Fl. N. Am. 1: 439; Hat. & Wright, N. Am. 
SOumon as 
