Volume 9 April 30, 1913 
MUHLENBERGIA 
= z a = — LIBRARY 
| ‘ f NEW YORK 
ADDITIONS TO THE FLORA OF THE BLACK HILLS BOTANICAL 
OF SOUTH DAKOTA—III GARDEN. 
By STEPHEN SARGENT VISHER 
Additions I.(1) and II.(2) dealt with the Hills proper. 
This list treats of the southern foothills and the Cheyenne val- 
ley just south of the Hills. The area embraced is Fall River 
county, the most southwesterly county of South Dakota. About 
one-third of this county is included within the Black Hills as 
that term is narrowly applied, while all of it is included by a 
looser definition. The collection upon which these notes ate 
based was made for the South Dakota State Survey, July 24th 
to August 6, 1911. The determinations are by Dr. Aven Nel- 
son, of the Rocky Mountain Herbarium, at Laramie, Wyoming. 
By comparison with “The Flora of South Dakota,” (3) it 
was found that about 31 species are here first reported from the 
state. These uames of these are in italic. Some 12 additional 
are new to the Black Hills region, but have hitherto been found 
in portions of eastern South Dakota. The former South Dakota 
“range” is given in parentheses. Four more species hitherto 
only known from a single South Dakota locality are mentioned. 
Nine other species recorded by Rydberg from the Black Hills(4) 
but omitted by Saunders are mentioned. 
(1) Torreya 9: 186-188. 1909. (16 Black Hills records; 
8 state records. 
(2) Muhlenbergia 8: 135-137. 1913. (21 Black Hills 
records; 1g state records.) 
(3) Bulletin 64, South Dakota Experiment Station, Brook- 
ings, 1899. 
(4) Cont. U. S. Nat. Herb. 3: 463-536. 1896. 
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