54 BOTANY OF THE ROUTE. 



MuLGEDiUM PULCHELLUM, Niitt. Ill Yakima valley, flowering August 20 ; common. 



Campanula linifolia, Lam. Collected near summit of Cascade range, but common in prairies 

 from Vancouver 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 OrohancJie comosa, Hook, is certainly a Phelipcea, and a close congener of F. 

 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. TJie 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 uucommou on prairies of the Yakima in July, but mostly out 

 of flower. 



GiLiA PULCHELLA, Dougl. Commou 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 Androsaemifolium, Linn. Common east of Cascade range, and also along the 

 Columbia to Vancouver, more rarely. 



Asc'LEPiAS 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, 

 near Walla- Walla, and noticed nowhere else. November 12: flowers white. 



