xxxviii 
BOTANY. 
canons of the Uintas B. glandulosa and Vacciniwn Myrtillus. The timber 
trees, which are found from the middle canons to an altitude of about 10,000 
feet, consist of Pinus Jlexilis and ponderosa, and the smaller contorta, with 
Abies Menziesii, Engelmanni and Douglasii^ grandis and amabilis. Juniperus 
occidentalis is replaced by J. Virginiana. In some of the canons the Cottonwood 
attains a large size, but the oak, which is frequent through the Wahsatch, 
and maple are rarely large enough to become of value. The valleys of 
Bear River and the Weber have a flora resembling that of the higher valleys 
of the Basin, with Artemisia^ &c., but in the still higher parks the vegetation 
is principally herbaceous and very various. 
As shown by the subdivisions of the following list of the plants collected 
only in these mountains, thirty-two species are either new or not yet found 
elsewhere ; twelve occur in the Pacific ranges, seventy in the Rocky 
Mountain region, and forty -two others in both mountain systems, only twenty 
of the whole extending eastward towards the Saskatchewan or Mississippi. 
Of these western species seventeen are arctic and twelve subarctic, to twenty- 
eight alpine and twenty-two subalj)ine. In division (c.) are forty-two species 
which are found on both the Pacific and Atlantic slopes, and twenty-six be- 
longing to the Atlantic side only ; of these twenty-six are arctic and fifteen 
subarctic, to six alpine and seven subalpine. If, however, the entire collection 
from these mountains be taken into account, division {a.) will include 57 
species, the three sections of division {b.) 61, 120 and 194 species re- 
spectively, and the sections of division (c.) 151 and 35 species. While the 
proportion of arctic and subarctic plants remains the same (but with a dispro- 
portionate increase among the more widely diffused species,) that of Mexico 
and southern species becomes one-half greater. The whole number of alpine 
species will be seventy-nine and of subalpine sixty-eight. 
specks collected only in the Wahsatch and Uintas. 
(a.) 
Parrya macrocarpa. Alp. Arc. 
Caulanthus hastatus. 
Lychnis Ajanensis ? Alp. Sib. 
Sagina nivalis ? Alp. Gr. 
Lewisia brachycalyx. S. 
Linum Kingii. Subalp.* 
Lupinus parviflorus. 
Trifolium Kingii. 
Andinum. 
gymnocarpon. 
Astragalus jejunus. Val . 
Orogenia linearifolia. 
Cymopterus longipes. 
Angelica pinnata. 
Peucedanum simplex. S. 
bicolor. 
Lonicera Utahensis. 
Aster Kingii. 
Erigeron ursinum. Subalp, 
stenophyllum . Subalp . 
Tanacetum diversifolium. 
Taraxacum phymatocarpum. Alp.Gr. 
Synthyris pinniatifida. 
Castilleia flava. Val. 
Gilia stenothyrsa. 
tenerrima. Val. 
Gentiana heterosepala. 
Polygonum minimum. Alp. 
Allium brevistylum. 
Carex elongata. Subalp. Subarc. 
vulgaris, var. Subalp.* 
Poa Eatoni. 
Saxifraga integrifolia. 
Zauschneria Californica. Mex. 
