48 
THE BOTANY OF THE ROUTE. 
much shorter than the at length spreading or recurved pedicels; calyx campanulate, minutely 
pubescent, its teeth very short; corolla purple; the legume sessile in the calyx, linear, 
acute, glabrous, or minutely puberulent, 8-10 seeded; the narrow valves considerably convex. 
Two forms occur, one rather smaller and more cinereous than the other. Leaflets half an inch 
to one inch long, varying from half a line to two lines wide. Corolla four or four and a half 
lines long. Legume nine or ten lines long, a line and a half wide; neither suture in the least 
introflexed or tumid; the funiculi short. To none of Nuttall's too numerous species of 
Homalobus can this be referred. It most resembles his H. decumbens, but is less rigid, not 
silky-canescent, and has very much shorter and blunter calyx-teeth. It may possibly be the 
obscure Astragalus miser of Douglas, but the pubescence of the calyx is seldom and slightly 
blackish. ' ' — Gray. 
LupiNUS SERICEUS, Pursh. Common on higher parts of eastern slopes in the pine forest, 
growing three feet high, and in August nearly past flowering. 
L. LEUCOPHYLLUS, Lindl. In similar localities. A very beautiful plant three feet high, with 
long spikes of blue flowers. 
Spirea betulaepolia, Pallas. Collected near 49th° on the Okanagan river flowering a second 
time in October. Seen also on summit of range in July; 3 feet high. 
Potentilla gracilis, Dougl. Abundant on the prairies mostly east of the range. 
Epilobium paniculatum, Nutt. Common along streams; August; 4 feet high. 
Oenothera albicaulis, Nutt. A single specimen found in flower along the Okanagan river, 
in October, on ground lately burnt over. 
Mbntzblia (Bartonia) laevicaulis, Torr & Gray. Found in flower on the plains from the 
"Wenass river north, to the 49th°; August; 2 feet; yellow. 
Galium rubioides, Linn. Common in damp soil, flowering in August. 
Brickellia oblongifolia, Nutt. Common on branches of the Columbia; flowering August 
20. Odor peculiar and not unpleasant. 
Machaeranthera canescens. Gray, var. [Dieteria divaricata, Nutt.) Common on gravelly 
shores of the Yakima, and other rivers; flowering in August. 
Aster salsuginosus, Rich, var. Rare on banks of Yakima river. Flowering in September; 
a foot high; flowers purple. 
A. MULTIFLORUS, Willd. Two Varieties collected on the plains in October. Two feet high; 
flowers white. 
Erigeron Douglassit, var? eradiatum. Sandy pine forest on the table-land, east of Mount 
Adams; August. "As far as can be judged from the poor specimens, this accords pretty well 
with E. Douglassii, Torr. & Gray; except that the heads are rayless." Gray. 
SoLiDAGO gigantea, Aiton. Common along streams on east side, growing 6 feet high. 
Linosyris albicaulis, Torr. & Gray. Near Yakima and its branches, flowering in September, 
when this and a few other compostice were the only plants showing signs of life; 5 feet high 
and very ornamental. 
L. visciDiFLORA, Hook. Found common along Snake river in November, but not seen 
northward. Accords with L. viscklifiora, except that the flowers in these specimens were not 
viscid. A large shrub much less beautiful than the last. 
Grindelia discoidea, Nutt. Banks of the Columbia near latitude 48°; flowering in Septem- 
ber a foot high. " Not the species so called by Hooker and Annot; which is G. anomala, D.C. 
This specimen has heads as large as those of G. squarrosa, from which, except in the want of 
