THE BOTANY OF THE ROUTE. 55 



L. POLYPHYLLUS, LincU. (T.) Common in damp, rich woods near Steilacoom; June, often 5 

 feet high, the raceme 1^ foot long, color light or dark purple. 



L. NOOTKATEXSIS, Dougl. (G.) Sandy prairie along coast north of Columbia river; May 20th, 

 flowers blue, with white keel. Differs from the description in wanting the ' ' red and yellow 

 veins," and the leaflets are pubescent on hoth sides. Stems procumbent, spreading, 2 feet 

 long. The only species I found along the coast. The L. littoralis, Dougl., somewhat resembles 

 this, but I met with none of which the roots were used by the Chenooks as food. They do dig 

 in the same place the roots of an Ahronia, which he may have mistaken for those of lupine. 

 This species is said to grow on "rocky shores" which I have never examined. 



L. LAXIFLORUS, Dougl. (T.) Very abundant on dry prairies of the interior, forming shrubby- 

 looking tufts two feet high, the whole plant with a grayish appearance. Flowers pale purple 

 blue, or white, in racemes 6 — 12 inches long; June 10th, Steilacoom, (S.) 



L. FLEXUOSUS, Lindl. ? A more shrubby species, growing only in dry woods, and flowering a 

 month earlier near Steilacoom. Flowers, larger, more ornamental, violet. Plant three feet 

 high. 



Cerasus MOLLIS, Dougl. (G.) A common tree on the borders of woods, <fec., 25 feet high- 

 Bark and form of tree very similar to the cultivated cherry. Flowers, April 1st, large, fragrant. 

 Fruit, black, bitter; as large as a pea; ripe in June. 



C. DEMissA, Nutt. (T.) Banks of brooks near Steilacoom. White, June. Flowers large, 

 many staminate only. 



NuTTALLiA CERASiFORMis, T. & G. (G.) A common shrub in wet grounds, especially on 

 the brackish marshes of the Chehalis above tide water, &c., 6 feet high; flowers in March. 

 Whole plant with the odor of Stapshylea trifoUa, Berries black, bitter; ripe in July. 



Spibea opulifolia, Linn. Not rare, along brooks, &c. ; Steilacoom, May 15th. 



S. DouGLASSii, Hkr. (G.) Abundant in wet grounds, on prairies, &c., throughout forest 

 regions; July, 5 feet high. Besides the distinctions mentioned, I find the leaves only half as 

 large as in S. tomentosa, and the small branches purplish, instead of rusty brown. Panicles 

 smaller and denser. 



S. Menziesii, Hooker. Eare on damp prairie near Steilacoom, near woods. Flowers, June 

 20th. Stems simple, two feet high only, ending in large panicles of pale rose colored flowers; 

 leaves in this specimen much. paler below than above, 1| inch long and ^ inch wide; flowers 

 larger than in S. salicifolia, as found in New Jersey. Whole appearance intermediate between 

 this and S. tomenfosa. 



S. Ariaefolia, Smith. A common shrub about Vancouver, but rare near Puget Sound; 12 

 feet high; June 15th, (Steilacoom, S.) 



S. Aruncus, Linn. (G.) Abundant on exposed clay banks, along coast, and at Puget Sound; 

 July 1st. 



Geum macrophyllum, Willd. (G.) Common in wet shady grounds; May 15th. 



Geum triflorum, Pursh. (T.) Rare; on Whidby's island, (Penn's cove,) April 12th. Flowers 

 richer purple than common. 



Potentilla Norvegica, Linn, "war., carpels glabrous," (T.) Rare on dry prairie near 

 Steilacoom, June 20th. 



P. GRACILIS, Dougl. (G.) B. flahelliformis, Nutt. Abundant on dry prairies of the interior; 

 Steilacoom, May 15th, (S.) 



