78 
BOTANY. 
examination of the flowers. The plant may, therefore, for the present, remain appended to W. 
helenioides. 
Wyetiiia robusta, Nutt, in Trans. Amer. Phil. Soc. 7,_p. 351 ; Torr. & Gray , FI. 2, p. 299, 
excl. syn. AAith the last. Eadical leaves lanceolate, a foot long. Hot well named, as the 
stems are quite slender next the ground. They hear, in a crowded manner, many alternate and 
pinnatifid leaves of oblong or spatulate outline, tapering into a margined petiole. The leaves, 
including the petiole, are one or two inches long ; their lobes one to three lines long, oblong, 
obtuse, entire or obtusely toothed. Like the rest of the plant, they are viscid or glandular-pu¬ 
bescent. A solitary peduncle, 1^ inch long, bears a single head, which is nearly an inch in 
diameter. Involucre purplish ; the outer scales broadly oblong-lanceolate ; the inner lanceolate. 
Kays small, linear, about 20 in number, apparently light yellow, half an inch long. Its tube 
and the lower part of the disk-corollas beset with glandular hairs. Achenia 3 to 4 lines long, 
flat, blackish, softly and very villous, except perhaps towards the base ; the hairs at the sum¬ 
mit as long as the diaphanous paleas of the pappus. 
Oxyura chrysanthemioides, DC. Prodr. 5, p. 693. Petaluma, California. 
Layia calliglossa, Gray, PI. Fendl. p. 103; var.? oligocireta; pappi aristis 2-3. Peta¬ 
luma, California. 
Madaria elegans, DC. Prodr. 5, p. 692. McCumber’s. 
Lagophylla filipes, Gray, in 31ex. Bound. Surv. Hemizonia filipes, Hook, Ac Am. Bot. 
Beech, p. 356. With the last, in flower only. Fruiting specimens of this are still a desideratum. 
Achillea millefolium, L. McCumher’s, shores of Klamath lake, &c. 
Matricaria discoidea, DC. Prodr. 6 , p. 51. Petaluma. 
Artemisia tridentata, Nutt. Columbia river. 
Artemisia Ludoviciana, Nutt.; var. Gnaphalioides, Torr. & Gray, FI. 2, p. 420. Pit river. 
Artemisia dracunculoides, Pursh. Des Chutes basin. 
Gnaphalium luteo-album, Linn. (G. Sprengelii, Hook. & Am., in part.) Sonoma. 
Gnaphalium palustre, Nutt.; Torr. & Gray, FI. 2, p. 427. Canoe creek. 
Gnaphalium purpureum, L. Petaluma. 
Antennaria Geyeri, Gray, PI. Fendl. adn. p. 107. McCumher’s. These are fine specimens 
of the male plant of this rare species, which Sir William Hooker confounded with a South 
American Gnaphalium, (G. alienum, Hook. & Am.') But it is a true Antennaria. 
Antennaria luzuloides, Torr. & Gray, FI. 2,p. 431. Hat creek and McCumher’s, N. Cal. 
Antennaria margaritacea, B. Br. Lakes south of Crater pass, Cascade mountains, 0. T.; 
August. 
Senecio triangularis, Hook. FI. Bor.-Amer. 1 , p. 322, t. 115. Upper Des Chutes river, near 
the edge of the water ; September. 
Arnica Chamissonis, Less.; Torr. & Gray, FI. 2, p. 449. A narrow-leaved state ; shores of 
Klamath lake, O. T. 
Arnica mollis, Hook.; Torr. & Gray, l. c. Crater pass, near the snow line. A state with 
narrower leaves than usual, and tapering to the base. 
Tetiiadymia canescens, DC. Prodr. 6, p. 440. Fort Pleading, Cal. The leaves are only a 
little shorter than in Douglas’ plant, and the flowering branches (which are herbaceous from 
a shrubby base) are nearly as slender. 
Stepiianomeria minor, Nutt.; Torr. & Gray, FI. 2, p. 472. Hat creek and Pit river, Cal. 
Stephanomeria virgata, Benth. Bot. Sulpli. p. 32. A much larger flowered variety, but 
