60 MEMOIRS FROM THE DEPARTMENT OF BOTANY OF COLUMBIA UNIVERSITY 



Mts. 85; Rattan, An. Key W. Coast. Bot. oP; Greene, Fl. Fran. 1: 64; Rose, Cont. U. 

 S. Nat. Herb. 3 : 570 ; Rydberg, Bull. Torr. Bot. Club, 23 : 395. 



Lehm. in Hook. Fl. Bor. Am. 1: 193; Macoun, Cat. Can. PL 138 and 517. 



Potentilla divcrsifolia Lehm. Stirp. Pug. 2: 9. 1830. 



Don, Card. Diet. 2: 556; Dietr. Syn. PI. 3 : 185; Walp. Rep. 2 : 33; Ann. 2 : 482; 

 Lehm. Rev. Pot. 72. 



Eat. Man. Ed. 7: 458; Torr. & Gray, Fl. N. Am. 1: 439 ; Eat. & Wr. N. Am. Bot. 

 374; Torr. Frem. 1st Exp. 89 [174]; Wats. King's Rep. 5: 86; Gray, Am. Journ. Sc. 

 (11)33: 411 (Rep. 22). 



Lehm. in Hook. Fl. Bor. Am. 1: 190. 



PofeutiUa camjmtris ^utt; Torv. & Gray, Fl N. A. 1: 439. As synonym. 1840. 



Illustrations : Lehm. Rev. Pot. jj/. -Jl. Plate 19, f. 6; dissection of flower, /. 7 ,- 

 stamen,/. 8; pistil,/. 9; fruiting hypanthium and calyx,/. 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 Pursli is. 

 Dr. Watson thought it to be the same as P. diver-nfolia Lehm. Lehmann had seen P. 

 dmcda in Bank's herbarium, but thought that his P. diversifoUa 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. diverai folia 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. muHisecta (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. ^^'atson included in his P. dissecta, with varieties, not less than six difierent 

 plants, which I believe are all good species, viz : P. diversifoUa Lehm. P. decurrens 



