479 



CATALOGUE OF SPECIES. 

 RANUNCULACEiE. 



Clematis scottii Porter; Tort. A: Coult. Fl. Col. 1 (1874). 



The spetimeus in this collection are like those collected by Dr. Scoville in Colo- 

 rado, hut not like those obtained by Lenmion in Arizona, which undoubtedly belong 

 to a distinct species. Coulter, in the Manual of the Rocky Mountain Region, describes 

 the sepals as less hairy than those of C. douglasii. In mine they are fully as hairy, 

 but thicker and shorter. 



On hillsides near Hot Springs, altitude 1,060 m., June 1, 17; in fruit, August 2 (No. 

 481). 



Clematis ligusticifolia Nutt. ; Torr. & Gray, Fl. i, 9 (1838). 



In canyons among till' foothills: Hot Springs, altitude 1,050 m., August 2 (No. 482). 



A form with large (5 to 7 cm. long) and dullish leaflets and verj^ long (15 to 22 cm.) 

 and slender peduncles, was collected on the very steep sides of Hot Springs Canyon, 

 near the Chautauqua grounds, altitude 1,050 m., August 3 (No. 483). 



Clematis alpina tenuiloba (Gray). 



Gray ' makes this a subvariety of C. alpina oecidentalis Gray, which is described as 

 having smooth achenes. In my specimens they are silky. The plant further differs 

 from C. alpina ochotensis or occideniaUs in having more delicate stems, smaller and 

 more lobed leaves with more rounded lobes and sinuses, and longer, lanceolate sepals. 

 This plant has been collected also by Dr. Chas. E. Bessey at Maniton, Colo. It was 

 sold in albums of Black Hills flowers at Deadwood under the name of C. douglasii. 

 Perhaps the silkiness of the achenes was the cause of this error. 



Here and there in canyons, in the Black Hills proper, near Piedmont, altitude 1,200 

 m., June 27; Lead City, altitude 1,600 m., July 6; Bull Springs, in the Limestone 

 District west of Custer, altitude 1,900 m., July 27 (No. 484). 



Pulsatilla hirsutissima (Pursh) Britton, Ann. N. Y. Acad, vi, 217 (1891); Clematis 

 hirsittissiina Pursh, Fl. i, 385 (1814). 



Common in the Hills: Custer, altitude 1,650 m., May 28, 31. .Tune 4 (No. 485). 



Anemone multifida Poir. Kncyl. Suppl. i, 364 (1810). 



Not uncommon in the Northern Hills: Elk Canyon, altitude 1,200 m., June 29; I^ead 

 City, altitude 1,800 ni., July 4; Rochford, altitude 1,700 m., July 11 (No. 486). 



Anemone cylindrica Gray, Ann. Lye. N. Y. iii, 221 (1836). 



In the Northern Hills: Hermosa, altitude 1,000 m., June 21; Lead City, altitude 

 1,700 m., July 6; Rochford, altitude 1,650 m., July 11 (No. 487). Several of the plants 

 have some of the peduncles with secondary involucres. In a few specimens from 

 Elk Canyon, altitude 1,200 m.,.Tune 29, the divisions are also broad, and the plants 

 can not be distinguished from A. rirginiana, except by the very short style (No. 488). 



Thalictriim purpurascens L. Sp. PI. i, .546 (1753). 



In canyons, among the foothills: Hot Springs, altitude 1,0.50 m., .Tune 18; Elk 

 Canyon, altitude 1,200 m., June 29 (No. 489). 



Thalictrum occidentale Gray, Proc. Amer. Acad, viii, .372 (1872). 



The sjiecimens are rather too young for identification. None were seen in fruit, as 

 I was not in tlie locality of the plant except in the early part of the summer. The 

 foliage is very like that of T. occidmiale, and the plant agrees well with the descrip- 

 tion of that species. If the determination is correct, the range of T. occidentale is 

 extended far east. 



Elk Canyon, altitude 1,200 m., June 29 (No. 490). 



Thalictrum venulosum Trelease, Proc. Bost. See. Nat. Hist, xxiii, 302 (1886). 



This is T. dioicnm L., of Newton &, .Teuney's Report.^ 



The only specimens in fruit seem to be typical. They were collected near Bull 



' In Newton & Jenney, Geol. Surv. Black Hills, 531 (1880). « Loc. (it., p. 532. 



