THE BOTANY OF THE ROUTE. 
65 
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 Oregana, 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, &c.; Feb. 
20, yellow, 25—30 feet high. Specimens of several other species were collected, but in the 
uncertain state of our knowledge of western willows, cannot be confidently named. 
Populus tremuloides, Miclix. 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. balsamifera , Linn., and P. 
monilifera, Ait. 
Urtica gracilis, Ait. (G.) Nettle. Abundant in wet woods; July. 
PiNUS ponderosa, Dough Yellow Pine. Prairies near Steilacoom, not common; stunted. 
P. contorta, Dough? Scrub Pine. Damp sandy soil, sea-coast and interior. (Steilacoom, S.) 
Abies canadensis, Michx. Hemlock. Damp forests, common; April. 
A. Douglassii, Sabine. “Red” and “ Black Fir.” See notes on forest trees. March; 
yelloAv. 
A. grandis, Dough “Yellow Fir.” Young cone green and resinous. 
A. taxifolia,? Lambert. “White Spruce.” Undoubtedly a distinct species, 
A. MENZXESII, Lambert. “Black Spruce.” April; flower and cones red. 
Thuja gigantea, Nuttall. “Cedar.” 
Taxus brevifolia, Nuttall. “Yew.” (Oregona in plate.) April; yellow. 
SymploCARPUS kamtschaticus, Bong. (G.) Wet grounds, in forest; sea-shore to 3,000 feet 
high on mountains. Flowers March 21. Spathe white. (Steilacoom, S.) 
Typha latifolia, Linn. (G.) Common in wet grounds. 
Sparganium ramosum, Smith, (G.) Banks of streams, rare; June. 
Zostera marina, Linn., (G.) Common in bays, in shallow water or mud. 
Ruppia maritima, Linn. (G.) With the preceding; common. 
Triglochin maritimum, Linn. (G.) About the edge of high water in mud, common. 
Sagittaria Sagittifolia,? Linn. Tubers sent by Dr. Suckley from Steilacoom, said to be of 
this plant, are eaten by the Indians, under the name of “ Wappatoo.” 
Calypso borealis, Salisb. (T.) Common in dark, damp fir forests, on Whidby’s island; 
April 5. 
Platanthera leucostachys, Lindl. (G.) Common in moist prairie near Steilacoom; June. 
Flowers white, 4 feet high. (S.) 
P. hyperborea, Lindl. Steilacoom, not common; June, 2 feet high. 
Spiranthes cernua, Rich. (G.) Common in prairies everywhere; July to October. S. 
decipiens, Hook, (G.) (Steilacoom, S.) 
Sisyrinchium anceps, Linn., (G.) Abundant in prairies. 
S. grandiflorum, Dough (T.) Rare. Straits of Fuca, March 18, one specimen; flower rich 
purple; 1 foot high. 
Trillium grandiflorum, Salisb. (G.) Forests in damp shade, everywhere; August 1. 
T. ovatum, Pursh. (G.) (Steilacoom, S.) “ Root used as a poultice.” (G.) 
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