AND GENERA OF PLANTS. 391 
ments in the central florets merely filiform.—An exceedingly branched herb, 
with a smooth stem. Leaves alternate, small, linear-oblong, imbricately 
crowded on the branchlets and around the capitulum, remarkable for their 
abundant, soft, white, silky hairs, thickly spreading from the margin, so as 
to resemble almost the foot of a hare. Capitulum terminal, sessile among 
the leaves. Rays wide and conspicuous, three-lobed, very evanescent, and 
convolute when withered. Allied to Madia, but with a very different habit 
and distinct achenium, almost exactly like that of Parthenium.—(Named 
from the leaves being clad with long, soft hairs.) 
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Lagophylla * ramosissima; y? 
Has. In the prairies near Walla-Walla, in Oregon. Stem two or three feet high, exceedingly 
branched; smooth and shining, brownish. Leaves deciduous from the lower part of the stem and 
branches; upper branchlets very numerous, alternate, short and one-flowered, crowded with small 
linear-oblong leaves. Leaves about a third of an inch long, less than a line wide. Rays pale 
yellow, and large, but very evanescent, only expanding, apparently, in the sun-shine. Achenium 
black and shining, three-sided by an internal carination, without any. he 
visible on the seeds of Madia, Slightly bitter from minute glands on he su rface of the leaves. 
HARTMANNIA. (Decand.) 
Hartmannia * glomerata; ©, hirsute; leaves alternate, pinnatifid, sessile, 
upper ones entire; stem branching above; flowers in terminal clusters; rays 
about five, dilated oval, trifid at the summit; achenium gibbous, muricate and 
rugose, in the ray naked, in the disk infertile with a six to eight-leaved, cute, 
paleaceous pappus.  “Premizenat fegrri~ Le A be fin SF, 
Has. St. Pedro, Upper California. Common; flowering in April. Involucrum viscid and | 
fragrant, as well as the bractes and upper leaves, A very elegant species with abundance of bright 
yellow flowers, in dense clusters; sepals and bractes lanceolate, acute; sterile flowers six to eight, 
surrounded by a nearly entire pentangular involucrum. Pappus six to eight, acute, lacerated 
scales, nearly half the length of the floret. The plant six to eighteen inches high, and more or less 
hirsute. ie 
* OSMADENTIA. 
Capitulum many-flowered, radiate; — feminine, about five, long tubular, 
with the border equally three-cleft to its base. Discal florets hermaphrodite, 
tubular and attenuated, the border deeply five-toothed and glandularly pu- 
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