BOTANY OF THE ROUTE. 
65 
The only species of the genus I found west of the Cascade mountains; 5 feet high, very stout; 
ower leaves somewhat serrate-toothed on each side; scarcely trifid. 
Gnaphalium decurrens, Ives. (G.) var. ? Californicum , DC. Common on sandy prairies 
along sea-shore; August; 2 feet. 
G. luteoalbum, Linn. (G.) var.? SprengeUi , Hook. & Am. In similar situations along sea¬ 
shore; August and September; 1 foot. 
G. palustre, Nutt. (G.) In wet sandy soil along sea-shore; not common; August. 
G. purpureum, Linn., var.? ustulatum; Nutt. (T. & C.) Not common; in dry prairie near 
Puget Sound, and with the preceding along coast; July; 1 foot. “A remarkable white floccose 
variety. ’ ’ —Gray. 
Antennaria margaritacea, R. Br. (G.) A very large leaved form, 4 feet high; along coast; 
not rare; September. 
A. plantagifolia, Hooker. (T.) Dry prairies about Puget Sound; common; July. 
Crocidium multicaule, Hooker. (T.) On grassy hill sides; Straits of De Fuca; April 1; 
flowering when only two inches high, and continuing until a foot high in June; Steilacoom; 
common. 
Arnica amplexicaulis, Nutt. (G.) On rocky banks of streams among the coast mountains; 
July; 2 feet. 
Cirsium undulatum, Spreng. (T.) “A smoothish form;” common in open dry grounds near 
Columbia river, &c. The only native species west of Cascade mountains; 3 feet high. “The 
root is eaten.”—Gibbs. Canada thistle. 
Hieracium scouleri, Hook. (G.) Common in dry open grounds, burnt woods, &c.; June; 
rays white; 2 feet high. 
Macrorhynchus laciniatus, Torr. & G. (T.) and var. ft. Common on dry prairies about 
Puget Sound; June and July. Flowering; from 4 inches to 2 feet high. “ Root edible.” (G.) 
M. heterophyllus, Nutt. (G.) (Steilacoom, S.) 
M. Lessingii, Hook. (G.) Prairies along sea-shore; June. 
Mulgedium leucopileum, DC. (G.) Common in dry open woods, &c.; August. 
Sonchus asper, Yieill. (G.) Common about cultivated ground. Introduced? 
Campanula linifolia, Hkr. Prairies east of Coast range; common; June 10. 
C. Scouleri, Hkr. (G.) In shade of fir forests; common; June 20; 2 feet. (Steilacoom, S.) 
Specularia perfoliata, A. DC. (G.) Prairies; common; June. (Steilacoom, S.) 
Heterocodon rariflorum, Nutt. (T.) Prairie near Steilacoom; rare; growing in cultivated 
grounds in spreading tufts a foot wide. Flowers either purple or white; June. 
Githopsis specularioides, Nutt. (T.) (Trans, of Amer. Phil. Soc., new series, p. 225. 
With the preceding, and similar in growth, but smaller; June 20; purple. 
Vaccinium macrocarpon, Aiton. (G.) Swamps near coast; abundant; June. 
Y. parvifolium, Smith. (G.) Forests; common; flowers greenish purple; April; fruit red; 
July. 
Y. caespitosum, Mich. Prairies of interior; abundant; April; 6 inches high. 
Y. ovalifolium, Smith. Dark forests; not abundant; flowers greenish, March; fruit blue, 
sour; August. 
Y. myrtilloides, Mich. Cascade mountains over 4,000 feet high; fruit good; ripe in August; 
brownish purple. 
