TO Part IV. Chapter 3. 
uch a mountain meadow contains Poa Sandbergii, Agropyrum spicatum, Festuca ovina, Poa 
S 
Wheeleri, Poa nevadensis, Koeleria eristata along with Achillea millefolium, Wyethia amplexicaulis, 
Arnica alpina, Erigeron aphanactus, Gaillardia aristata, Balsamorrhiza incana, Lupinus sulphureus, 
Clarkia pulchella, Navarretia Breweri, Gilia re Eriogonum heracloides, Geum trifolium, 
Pentstemon attenuatus, Deschampsia "allcias olygonum Donglaii, Peucedanum leptocarpum, 
Calochortus Nuttallii and Sedum Douglasii. — Along Quinn River, the meadows show a rich 
growth of characteristie grasses and sedges. 
Greasewood Formation. As one descends from the open plains into the 
valley bottoms the soil becomes alkaline and the vegetation changes, the sage 
brush Artemisia tridentata etc. being replaced by the greasewood Sarco- 
batus vermiculatus with Distichlis spicata, Atriplex hastata, Bigelovia (Chryso- 
thamnus) graveolens, Suaeda depressa var. erecta, and diffusa, iodine weed 
Spirostachys occidentalis, Sporobolus airoides. 
Stream Bank Formation. Along the streams and by springs willows of several species 
grow together with Crataegus brevispina (= C. Douglasii), Populus tremuloides, P. trichocarpa 
which form groves. The common undershrubs are Symphoricarpos racemos 
iguum 
abundant shrub, The ee plants found here are Castilleja miniata, Clematis hirsutissima 
(= C. Douglasii), Heracleum lanatum, Lupinus leucophyllus, Sidalcea oregana, Solidago serotina, 
Urtica Lyallii, U. holosericea, Valeriana ceratophylla. 
B. Nevada District. 
The proper flora of the Great Basin occupies the states of Nevada and Utah 
parts of the states of Idaho and California north of the eastward flowing portion 
of the Colorado River. A large area of this district Iying at elevations up 
to 5000 feet includes numerous valleys and widely extended plains with n0 
outlet for the drainage. Into these the streams from the mountains flow and 
terminate in lakes at the lowermost part of the basin formed, or spread out in 
great flats or playas in such a manner that the waters disappear in the ground, 
forming what are known as sinks. The soil of the basin in many places, 
becomes highly charged with salts and supports a flora in which the predo- 
minant forms consist of perennial compositous shrubs of which the genus ; 
. 
50 
Artemisia furnishes three or four species known locally as sage-brush grease 
wood and desert sage. 
No portion of this district, however desert, is destitute entirely of some 
vegetation, even in the driest season, excepting only the alkali flats, which are 
usually of quite limited extent. To the absence of trees outside of the moun- 
tains of the basin, there seems to be a single exception in the valley of the 
Truckee River, where Populus monilifera (= P. deltoides) and P. trichocarpa 
grow in considerable numbers in the river bottom. Ascending the mountain 
ranges for example Table Mountain 11,200 feet‘), the botanist finds seven 
Ben of ein viz: Juniperus virginiana, Populus tremuloides, Pinus Bal- E 
1) SARGENT, C. S.: The Forests of central Nevada. American Journal Science and Arts. Third 
ser. XVH (1879): 417—426. 
