68 BOTANY OF THE ROUTE. 



CuscUTA UMBROSA, Beurick. (G.) ^^ ex-Hooker." Common among .Salicornia on sea-coast. 

 September. 



SOLANUM NIGRUM, Linn. (G.) A large form, growing chiefly around cultivated grounds 

 Introduced? July to December. 



Fraxinus Oregonus, Nutt. Ash. River bank above tide-water; June. 



AsARUM HooKERi, Gray. (G.) A canadensis, var. Hook. Forests; not common; June. (Steila- 

 coom, S.) "The specimens are not in flower, but it is no doubt a distinct species." — Gray. 



Salicornia herbacea, Linn. (G.) Salt marshes; abundant. 



Chenopodium album, Linn. (G.) Several varieties about cultivated grounds on sea-shore. 

 Introduced? 



Blitum Rubrum, Linn. var. B. humile, Mov. (T.) Salt marsh at Shoalwater bay; May. 

 Branches decumbent, fleshy; 6 inches long. 



Abronia arenaria, Menz. (G.) Sandy sea-shore nearest to water, spreading. Flowers in 

 June and July; orange yellow, and with the odor of orange blossoms. 



A. umbellata, Lamk. (C.) With preceding, a smaller plant; flowers pink, expanding in 

 September; scentless. 



Polygonum Paronychia, Cham. (G.) Common on dry sandy prairies along sea-coast; July; 

 2 feet; rose-colored. 



P. Persicaria, Linn. (G.) About cultivated grounds. Introduced? July. 



P. tenue, Michx. (G.) Sea-shore prairies; June. 



P. AMPiiiBiUM, var. aquaticum, Linn. (T.) In lakes about Puget Sound, common; June. 



Rumex Salicifolius, Weinm. (G.) About salt marshes, etc., common; June. 



R. DOMESTicus, Hartm. ex-Hook. (G.) Introduced? not common. (Steilacoom, S.) "Leaves 

 boiled and eaten by Indians." — (G.) 



R. PERSiCARioiDES, Linn. (G.) Common about salt marshes. June; 1 foot. 



R. ACETOSELLA, Linn. Becoming common in cultivated prairies. Introduced 20 years since 

 at Nisqually farms, and is now spread for miles around, crowding out everything else in the 

 poor gravelly soil. — (S.) 



Shepherdia Canadensis, Nutt. Found only on banks near Straits of Fuca; flowering March 10, 



QuERCUS Garryana, Dougl. White Oak. The abundant and sole species of oak, in prairies. 

 Flowers, May 25. 



CoRYLUS Americana, Walter. (C.) Hazel. An abundant shrub in the fir forests ; March. 



Myrica Californica? Cham. (G.) Not common in marshes along coast; leaves evergreen, 

 inodorous; flowers and fruit not found. 



Alnus Oregona, Nutt. (A. rubra? Bong.) Alder. Common near coast. See notes on trees. 



A. viRiDis, DC. (T.) A shrub 20 feet high, rare ; Steilacoom. 



Salix brachystachys, Benth. Scouleriana, Barratt. (G.) Common along coast, <fec. ; Feb. 

 20, yellow, 25 — 30 feet high. Specimens of several other species were collected, but in the 

 uncertain state of our knowledge of Avestern willows, cannot be confidently named. 



Populous tremuloides, Michx. Common on mountains and around lakes near Puget Sound. 



P. angustifolia, Torr. Abundant on river banks above tide-water. The specimens do 

 not certainly identify the other species, but they are probably P. halsami/era, Linn., and 

 P. monilifera, Ait. 



Urtica gracilis, Ait. (G.) Nettle. Abundant in wet woods ; July. 



PiNUS PONDEROSA, Dougl. Yellow pine. Prairies near Steilacoom, not common ; stunted. 



