60 MEMOIRS FROM THE DEPARTMENT OF BOTANY OF COLUMBIA UNIVERSITY 
Mts. 85; Rattan, An. Key W. Coast. Bot. 51°; Greene, F]. Fran. 1: 64; Rose, Cont. U. 
S. Nat. Herb. 3: 570; Rydberg, Bull. Torr. Bot. Club, 28: 395. 
Lehm. in Hook. Fl. Bor. Am. 1: 193; Macoun, Cat. Can. Pl. 138 and 517. 
Potentilla diversifolia Lehm. Stirp. Pug. 2: 9. 1880. 
Don, Gard. Dict. 2: 556; Dietr. Syn. Pl. 3: 185; Walp. Rep. 2: 33; Ann. 2: 482; 
Lehm. Rey. Pot. 72. 
fat. Man. Ed. 7: 458; Torr. & Gray, Fl. N. Am. 1: 439; Hat. & Wr. N. Am. Bot. 
374; Torr. Frem. 1st Exp. 89 [174]; Wats. King’s Rep. 5: 86; Gray, Am. Journ. Se. 
(11) 38: 411 (Rep. 22). 
Lehm. in Hook. Fl. Bor. Am. 1: 190. 
Potentilla campestris Nutt.; Torr. & Gray, Fl. N. A. 1: 439. As synonym. 1840. 
Intustrations: Lehm. Rev. Pot. pl. 31. Puare 19, f. 6; dissection of flower, f. 7 ; 
stamen, f. 8; pistil, f. 9; fruiting hypanthium and calyx, f. 10. 
Stem erect, few-leaved, smooth, 1-2 dm. high (in the variety of ten 3. dm.). Stipules 
lanceolate to ovate-acuminate. Basal leaves with petioles 5-15 cm. long, digitate, or often 
pinnate with approximate leaflets, slightly hairy, very rarely a little tomentose, in the 
variety generally perfectly smooth, veiny beneath. Stem leaves reduced, the uppermost 
3-foliolate and sessile; leaflets most commonly 7, oblanceolate or cuneate or sometimes 
obovate, more or less toothed with triangular teeth. Hypanthium more or less pubes- 
cent, in fruit 7-10 mm. in diameter. Bractlets and sepals lanceolate, acute, the former 
shorter. Petals obcordate or obovate and emarginate, about one-third longer than the 
sepals. 
It would be much better if Lehmann’s name were used for this species, as this, with- 
out doubt, belongs to it. Nobody seems to know absolutely’ what P. dissecta Pursh is. 
Dr. Watson thought it to be the same as P. diversifolia Lehm. Lehmann had seen P. 
dissecta in Bank’s herbarium, but thought that his P. diversifolia was different. Not. be- 
ing able to settle the matter satisfactorily, the author thinks it best for the present not 
to make a change in the “accepted” nomenclature, although P. diversifolia is a good 
name and available, and besides has the advantage of belonging to this plant without 
doubt. 
It seems to me as if the name P. dissecta belongs rather to P. mu/tisecta (see below) or 
to P. Ranunculus. Lange’s description and figure of the latter in Flora Danica, and the 
only specimen seen by me agree much better with Pursh’s description of P. dissecta than 
the present species does. 
Dr. Watson included in his P. dissecta, with varieties, not less than six different 
plants, which I believe are all good species, viz: P. diversifolia Lehm., P. decurrens 
