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BOTANY OF THE ROUTE. 
Mulgedium pulchellum, Nutt. In Yakima valley, flowering August 20 ; common. 
Campanula linifolia, Lam. Collected near summit of Cascade range, but common in prairies 
from Yancouver eastward. 
Pyrola dentata, Smith, var. Integra. On high wooded hills, east of Mount Adams ; August 
12 ; in fruit. “This is just the Pyrola dentata figured by Hooker, only that the oblong obvo- 
vate leaves are entire, or, at most, with mere vestiges of a few teeth, in some cases.”— Gray. 
Phelipcea COMOSA, Torr. & Gray, ined. Tahk prairie, ten miles from base of Mount Adams ; 
August 12. Corolla pale purple. 
‘ ‘ This, the Orobanche comosa, Hook, is certainly a Plielipoea , and a close congener of P. 
Californica and Ludoviciana; but it invalidates the character of Aphyllon ( Anoplanthus , Endl.) 
as to the bracts, rendering it probable that this genus may be merged in Phelipcea, since some 
species of the latter have a nearly regular corolla. These specimens, as to the corolla, corre¬ 
spond better with Hooker’s character than with his figure ; indeed, the three lower lobes are 
not even emarginate. The notch of the upper lip varies in depth, as it does in the allied 
species. ’ ’ — Gray. 
Pentstemon procerus, Dougl. Common along the banks of the Yakima and its branches ; 
flowering in August, purple ; a foot high. 
P. Richarasonii, Dougl. On the higher parts of the Cascade range eastward ; August; 
purple. 
Mimulus luteus, Linn. Common along the banks of streams. 
Mimulus moschatus, Dougl. Collected, August 9, on a branch of the Yakima river, but 
also found in damp, shady places on both sides of the mountains. 
M. Primuloides, Benth. Found only, August 12, on the higher part of the Cascade range ; 
yellow. 
Orthocarpus bracteosus, Benth. On the low prairie near the Yakima. August; flower 
purple. 
Castilleja miniata, Dougl. On the bank of the Columbia, about latitude 48°. Flowering 
a second time September 20. 
Mentha borealis, Linn. Common on the Yakima and branches, as well as west of the 
Cascade range. August. 
Stachys ciliata, Dougl. With the preceding and more common, 
Phlox speciosa, Pursh. Collected in October on burned prairies, along the Okanagan, 
flowering a second time. Also found in flower near the Dalles, in November. Six inches high. 
Collomia linearis, Nutt. Not uncommon on prairies of the Yakima in July, but mostly out 
of flower. 
Gilia pulchella, Dougl. Common on eastern side of Cascade mountains^ but rarely found 
in flower after June. 
G. inconspicua, Dougl. With the preceding, and also westward. 
Polemonium pulcherrimum, Hook. Found only near the 49th degree, near banks of streams, 
in gravelly soil, a few plants having a second growth of flowers on them. 
Apocynum Androsaehifolium, Linn. Common east of Cascade range, and also along the 
Columbia to Vancouver, more rarely. 
Asclepias speciosa, Torr. Found flowering in Yakima valley in August. Plant 4 feet high, 
flowers yellowish white. 
Abronia mellifera, Dougl. Collected in flower on the sandy desert south of the Columbia, 
neaF Walla-Walla, and noticed nowhere else. November 12; flowers white. 
