CATALOGUE. 
201 
of the upper branchlets ; involucre 4" long, of 5-7 unequal lanceolate acute 
imbricated scales, with 2-3 minute calyculate bractlets ; flowers 3-5, the 
ligules twice as long as the involucre ; achenia not tapering upward ; pappus 
rather rigid, 2¥' long.— ''In the Rocky Mountain plains towards Cahfornia," 
(Nuttall;) Cahfornia, (Brewer;) Mount Davidson, Nevada, (Bloomer.) Foot- 
hills and gravelly hillsides. East Humboldt Mountains, Ruby Valley, and at 
the head of Humboldt River; 6,000 feet elevation; August, September. 
Flowers almost always three. The lower leaves are apparently membranous 
or grass-Hke, as they quickly perish, leaving only vestiges hidden in the 
pecuhar masses of brownish-white wool. (708.) 
Malacothkix^ Califoenica, DC. Annual, villous-lanate or becoming 
smooth; stems several, 8-12' high, scapiform and monocephalous or with 
1-2 smaller heads from the axils of cauHne leaves ; radical leaves numerous, 
3-6' long, sometimes entire, but usually jjinnately divided into 5-9 distant 
very narrow almost filiform entire segments ; involucre campanulate, of many 
unequal lanceolate scales imbricated in several rows ; flowers yellow, very 
numerous ; achenia scabrellate on the primary ridges ; outer pappus cup-like, 
with a hyaline and slightly pectinate border, two of the teeth developed into 
strong awn-like setae, as long as the 12-15 nearly smooth deciduous capillary 
bristles of the inner pappus. — Heads as large as a dandehon or even larger, 
the hgules 4-5-toothed. The two outer setge of the i)ai)pus are not opposite, 
but both on one side of the achenium, and the same arrangement is seen in 
M. Coulteri. Cahfornia, (Douglas, Brewer!) Yar. glabeata. Gray, Ms. 
Glabrous throughout, even when young. — Carson City, (Anderson !) Foot- 
hills of the Trinity Mountains, Nevada ; 4,500 feet elevation. (709.) 
Malacotheix sonchoides, T. & G. Annual, glabrous; stems 4-15' 
high, corymbosely branching ; leaves oblong-lanceolate ; runcinately pinnati- 
fid ; the lobes ovate-lanceolate, acute, toothed or nearly entire ; heads large, 
(9-14" wide,) terminal on the branches ; involucre bell-shaped, with a few 
outer calyculate scales, but mostly of lanceolate acuminate white-margined 
subequal entire scales, 4-6" long; achenia many-striate, smooth; outer 
J malacotheix, DC. Heads niany-flowered ; the flowers all lignlate. Involucre heiuisi)lierical 
or bell-shaped, of nmnerous narrow iiubrieated scales. Eeceptaclo naked. Achenia oblong-linear, not 
beaked, smooth, 8-15-striate or ridged. Paiiinis double ; the outer a minute cup like crcuulate or toothed 
ring, a few of the teeth sometimes produced into awu-liko somewhat persistent .s, t;i. ; Hi,. iHiicr coiiiposed 
of many silvery-white cajiillary minutely-scrruhite or barbellate deciduous bristles.— Herbs, annual or 
perennial, natives of Westt ni North Aniei ic a. Leaves undivided or pinnatitiil. Flowers yellow or wliite 
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