198 MEMOIRS FROM THE DEPARTMENT OF BOTANY OF COLUMBIA UNIVERSITY 



cept the upper ones, which are somewhat rhombic, all deeply incised and doubly serrate. 

 Stem leaves similar, only the upper ones reduced. Flowers large, 15-20 mm. in diame- 

 ter, in a narrow cyme, often in the axils of the leaves far down. Hypanthium densely 

 glandular-viscid. Bractlets linear to ovate, the broader ones sometimes toothed, shorter 

 than the triangular-lanceolate, long-acuminate sepals, which are often 1 cm. long in fruit. 

 Petals orbicular, very concave, much exceeding the sepals. 



The flowers much resemble those of the preceding, the petals being bright yellow, 

 very large, orbicular, very concave, and much exceeding the ovate-lanceolate long-acumi- 

 nate sepals, but the habit is very different ; D. fissa is a low plant, seldom exceeding 2 

 dm. high, very bushy, with a narrow and few-flowered cyme ; also often with some flow- 

 ers in the axils of the leaves ; the leaves most resemble those of the next, but the leaf- 

 lets are generally more rounded and with stronger veins. The type specimens of D. scop- 

 ulorum are less glandular than the original of D. fissa, but very glandular specimens 

 have been collected even in Colorado. D. fissa occurs in the higher Rockies. It is 

 common in Colorado, rare in Wyoming and Montana. 



Colorado : Numerous collections. 



Wyomijig: T. C. Porter, 1871 ; Aven Nelson, Nos. 85 and 95, 1894; No. 1351, 

 1895; F. Tweedy, No. 74, 1893; B. C. Buflfum, 1892. 



YeUo2vstone National Park: G. W. Letterman, No. 136, 1885; C. H. Hall, 1888. 



Montana: F. V. Hayden, No. 8, 1859 ; Mrs. Moore, 1874 (?); F. W. Traphagen, 1885. 



f Oregon: Nuttall (type). 



6. Drymocallis glandulosa (Lindl). 



Potentilla glandulosa Lindl. Bot. Eeg. 19: pi. 1583. 1833. 



Dietr. Syn. PL 3 : 187; Walp. Rep. 2 : 35 ; Ann. 2: 476; Lehm. Rev. Pot. 48. 



Torr. & Gray, Fl. N. Am. 1: 446; Newberry, Pac. R. R. Rep. 6: No. 3, 72; Porter, 

 U. S. Geol. Surv. 1871: 482; Coulter, 1. c, 1872: 765; Wats. Proc. Am. Acad. 8: 

 552 (mainly) ; Port. & Coult. Syn. Fl. Col. 36 ; Coulter, Man. Rocky Mts. 83 (mainly) ; 

 Tweedy, Fl. Yell. Nat. Park, 55; Coville, Cont. U. S. Nat. Herb. 4: 95 (in part); Rose, 

 I.e. 3: 570; Holz. /. c. 3 : 222; Rydberg, /. c. 3: 496. 



J. Macoun, Cat. Can. PL 136 and 516; J. M. Macoun, Can. Rec. ScL, 1895 (Rep. 4). 



Illustratioi^s : Lindl. Bot. Reg. 19: pi. 1583. Plate 107, f. 1; dissection of 

 flower, /'. ^ ; pistil, /. 3 ; fruiting hypanthium and calyx, /. 4.. 



Stem strict, 3-6 dm. high, more slender than in D. arguta, indistinctly striate, viscid 

 and glandular-hairy, especially upward, subsimple below, irregularly branched above. 

 Lower stipules lanceolate, the upper ovate, acuminate and generally deeply toothed. 



