filiform, 2 inches or more in length. Corolla of the disk with a glabrous
tube ; of the ray with a rather short glandular tube ; the ligule very broad,
convolute, deeply 3-cleft; the lateral lobes roundish-cuneiform; the middle
one much smaller.
§ 2. Stem much branched, diffuse, minutely glandular, as well as the involucre
and upper leaves ; the cup-shaped glands none: rays 3-parted down to
the slender tube; the oblong lobes somewhat equal, spreading : teeth of the
disk-corolla (purple in the throat) oblong-linear.—Osmadenia, Nutt.
5. C. tenella: stem somewhat hairy; the branches slender, divaricate,
sparingly leafy, terminated by mostly solitary heads ; leaves very narrowly
linear, scabrous, setose-hirsute towards the base ; the lower cauline crowded;
those of the branches small, acerose-subulate ; bracts few ; scales of the involucre
and the chaff of the receptacle ovate-lanceolate, somewhat acuminate,
covered with small glands ; the latter united ; achenia of the ray glabrous,
rugose; of the disk slightly hairy; scales of the pappus 8-10 ; the alternate
ones produced into rigid very scabrous awns, rather shorter than the
corolla ; the intermediate ones much shorter, lanceolate-oblong, lacerate-den-
ticulate.—Osmadenia tenella, Nutt. ! in trans. Amer. phil. soc. (n. ser.) 7.
p . 392.
St. Diego, California, Nuttall! May.—Plant 6-12 inches high, erect at
the base ; the filiform branches widely spreading. Heads 3 lines long; the
linear-acerose'bracts, and the somewhat glutinous involucre and chaff furnished
with small and flat slightly pedicellate glands. Chaff united nearly
to the summit. Rays white, exserted ; the middle division smallest; the
fertile achenia apiculate at each end.—The plant is said to exhale a powerful
and very agreeable aroma, whence the name imposed by the discoverer.
139. LAGOPHYLLA. Nutt, in trans. Amer. phil. soc. 1. c. p. 390.
Heads few-flowered; the ray-flowers about 5, pistillate, ligulate, cuneiform,
3-lobed ; those of the disk 5-6, staminate and pistillate, but sterile by
the abortion of the style and ovary. Scales of the involucre 5, similar to the
leaves, ovate-lanceolate, the margins infolded and enclosing the ray-achenia.
Receptacle flat, fimbrillate-hirsute in the centre, chaffy at the margin between
the ray and disk-flowers ; the chaffy scales 5 or 6 in a single series,
distinct. Branches of the style in the disk-flowers subulate-filiform, hirsute.
Achenia smooth, destitute of pappus; the fertile narrowly oblong-cuneiform,
obcompressed, straight, nearly flat and obscurely angled on the back, carinateangled
anteriorly, and hence somewhat triangular; those of the disk entirely
abortive.—A perennial ? exceedingly branched slender herb, with a smooth
and glabrous stem and branches, which are very leafy at the extremity, and
terminated by small sessile heads. Leaves alternate, almost imbricated on
the branchlets, deciduous, linear-oblong (those of the branches 3-4 lines long),
thickish, entire, obtuse, with involute margins, very villous, (as well as the
involucre and the summit of the chaff,) especially along the margins, with
long and soft white hairs. Rays short and broad, pale yellow.
L. ramosissima (Nutt.! 1. c.)
Plains near Wallawallah, Oregon, Nuttall!—A remarkable plant, 2-3
feet high. We have not seen the cauline leaves, which are apparently caducous
; those of the branches are clothed with long and very soft hairs, thickly
spreading from the margin, so as almost to resemble the foot of a hare ;
whence the name.
140. ANISOCARPUS. Nutt, in trans. Amer. phil. soc. 1. c. p. 388.
Heads many-flowered; the ray-flowers about 12, ligulate, pistillate, in a
single series; those of the disk tubular, staminate and pistillate, but sterile
by the abortion of the ovary. Scales of the subglobose involucre as many
as the rays, carinate-complicate, and wholly enclosing their achenia. Receptacle
somewhat convex, naked and smooth, except the margin, which is
furnished with a single series of more or less united chaffy scales between the
ray and disk-flowers. Tube of the corolla pubescent. Rays exserted, cuneiform,
3-cleft at the apex. Branches of the style in the disk-flowers subulate,
very acute, minutely hispid. Achenia of the ray oblong, obcompressed,
flat, somewhat incurved, glabrous, without lateral angles or nerves,
crowned with a small sessile disk, destitute of pappus ; of the disk abortive,
with a pappus of 5-8 small fimbriate-lacerate membranaceous scales.—
A villous-hirsute perennial herb, with the aspect of Madia, or Madaria; the
leaves linear, elongated, entire or denticulate, sessile, alternate, or the lower
opposite. Heads paniculate-corymbose or racemose ; the involucre, naked
peduncles, and upper part of the stem very glandular. Flowers bright
yellow.
A genus intermediate between Madaria (with which it accords in aspect, and from
which it chiefly differs in the pappus of the disk-flowers), and Hartmannia, DC.
(§ of Hemizonia), from which it is distinguished by the flat compressed achenia,
entirely enclosed m the involucral scales.
A . madioides (Nutt.! 1. c.)
Banks of the Oregon, among rocks, in shady forests, at the outlet of the
Wahlamet; rather rare, Nuttall!—Stem simple, 1-2 feet high, hirsute with
long and short hairs. Radical leaves linear-oblong, remotely serrulate, 3-4
inches in length; the cauline gradually reduced in size. Involucre 3-4 lines
in diameter: rays conspicuous, but rather short.—"We have not seen the mature
fruit.
141. MADARIA. DC. mem. soc. Genev. 7. p. 280; Endl. iconogr. t. 36.
Heads many-flowered; the ray-flowers 10-15, ligulate, pistillate, in a
single series ; those of the disk tubular, staminate and pistillate, but sterile by
the abortion of the ovary. Scales of the subglobose involucre as many as the
rays, complicate and enclosing their achenia. Receptacle somewhat convex,
fimbrillate-hirsute, except the margin, which is furnished with 1 or 2 series of
chaffy scales between the ray and disk-flowers. Corolla pubescent or hairy
at the base ; the rays twice the length of the involucre. Achenia of the ray
as in Madia; those of the disk abortive; all destitute of pappus.—Annual
(Californian) hairy and glandular herbs, with the aspect of Madia ; the heads