448 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
California. No specimens from California representing true B. 
aquifolium have been seen. 
Berberis repens ranges from the Cascade Mountains eastward to 
the Black Hills of South Dakota and from about the 55th parallel 
of latitude southward to New Mexico and California. In Arizona 
and California particularly occur divergent forms or perhaps dis- 
tinct species, such as B. pumila Greene, B. dictyota Jepson, and B. 
wileowit Britt. & Kearney. All these exhibit the same papillate 
character in the under epidermis of the leaf as does B. repens. The 
relationship of these forms is not here especially considered, but a 
few words need to be said about a peculiar plant of southwestern 
Oregon and northern California which in habit, stature, and its 
somewhat shiny leaves resembles B. aquifolium. From that species 
it is at once separated by the under surface of the leaves, which is 
covered with a rather dense, somewhat ferruginous bloom that under 
the binocular shows a papillate appearance quite like that of 2B. 
repens, B, pumila, and B. dictyota. The leaves are reticulate less 
strongly than those of 2. dictyota and B. pumila. For the present it 
seems best to associate this plant with 2B. dictyota. The larger 
thinner leaves may well be the result of less arid conditions. The 
specimens referred to include the following: 
OREGON : Gold Hill, Walpole 146, March 25, 1899, Cascade Mountains, Austin 
1467, August 20, 1897. Black Mountain near Keno, Applegate 2007, May 8, 
' 1898. Wimer, Hammond 13, April 30, 1892. Four Mile Creek, Klamath 
County, Coville € Applegate 272, July 29, 1897. Grizzly Peak near Med- 
ford, Leiberg 4139, June 22, 1899. 
CALIFORNIA: Yreka Creek, Butler 1807, August 1, 1910: Butler 1169, April 11, 
1910. Truckee, Sonne 11, April, 1885. 
, 
The original specimens of Lewis, which must be considered the 
iypes of Berberis aquifolium Pursh, are illustrated in Plates 24 and 
25. The specimens are sewed to the sheet with olive-green silk thread 
in a uniform manner. The two large leaves are darker in color and 
a trifle more shiny than the rest of the specimens. On the back of 
the sheet appears in Pursh’s handwriting, “ N. American Herb. Lewis 
& Clark. Fred. Pursh.” There is no inherent reason why all the 
specimens on the sheet may not have been collected by Lewis at 
“Great Rapids,” as all of them can be matched perfectly by material 
collected at the type locality. The two larger leaves are typical of 
the shiny-leafed plant growing in copses in partial shade. The leaf 
of the flowering branch is likewise matched by that of a fruiting 
specimen growing in the open, which from both its tallness and its 
shiny leaves is the same species as the more shiny-leafed plant of 
the copses. 
By comparing Pursh’s illustration (Plate 26) with the type speci- 
men (Plates 24 and 25), it is clear that the large figure is drawn 
