148. MONOLOPIA. DC. prodr. 6. p. 74 ; Hook. ic. pi. t. 343 344.
Heads many-flowered; the rays 8-10, pistillate ; the disk-flowers perfect,
but apparently sterile. Scales of the cup-shaped involucre 8-10, united
below. Receptacle convex or somewhat conical, naked. Disk-corolla with
a slender terete tube, and a dilated limb; the short teeth bearded. Achenia
glabrous, destitute of pappus; those of the ray obovoid, slightly obcom-
pressed; of the disk compressed, infertile ?—Annual (Californian) woolly
herbs; with linear-oblong sessile leaves (either opposite or alternate), and
solitary heads terminating the branches. Disk and rays yellow.
1. M. major (D C .! 1. c .): lower leaves somewhat toothed, the upper
entire; scales of the involucre strictly in a single series, united almost to the
summit; rays much longer than the disk; the tube furnished with a small
toothed appendage opposite the ligule; receptacle nearly conical.—Hook. !
ic. pL t. 344, 8f bot. Beechey, suppl. p. 359, ^ hot. mag. t. 3839. Hologymne
Douglasii, Fisch., Mey. ifLall. ind. 8. hort. St. Petersb. (1841) p. 64.
California, Douglas !—A foot high. Heads showy.
2. M. minor (DC.! 1. c .) : leaves sparingly lobed ; the lobes linear ; scales
of the involucre somewhat in 2 series, united only at the base ; rays short;
receptacle convex.— Hook. ! ic. pi. 1. 343, bot. Beechey, l. c.
California, Douglas !—Plant 4 or 5 inches high. Tube of the disk-corolla
hirsute.
149. COINOGYNE. Less, in Linneea, 6. p. 521, t. 6 ; DC. prodr. 6.p. 42.
Heads many-flowered ; the rays several, small, pistillate; the disk-flowers
tubular, glabrous, 5-toothed. Scales of the involucre few, imbricated, unequal,
somewhat fleshy, very obtuse; the outermost short and rounded.
Receptacle conical, naked. Branches of the style in the disk-flowers tipped
with a short cone, nearly as in Tagetes. Achenia of the ray and disk similar,
oblong, glabrous, many-ribbed, destitute of pappus.—A low perennial herb ;
with ascending stems, terminated by solitary rather large heads, and fleshy
ligulate and entire opposite leaves; their tapering bases connate in a short
sheath. Flowers yellow ?
C. camosa (Less.! 1. c.).—Hook. Sf Am. bot. Beechey, p. 150.
California, Chamisso! Capt. Beechey.—Stems about 4 inches in length.
Leaves half an inch to an inch long, 1-2 lines wide.
150. VENEGASIA. DC. prodr. 6. p. 43.
Heads many-flowered ; the rays numerous (15), pistillate. Scales of the
campanulate involucre imbricated in several series; the 5 exterior cordate,
acutish, foliaceous; the intermediate 10 ovate-orbicular, very obtuse, somewhat
colored; the innermost (about 15) small and chaffy, lanceolate or oblong.
Receptacle flat, naked. Tube of the corolla glandular, larger than
the ovary. Branches of the style terminated by an obscure cone. Achenia
oblong, obscurely quadrangular (muricate, DC.), destitute of pappus.—A
somewhat shrubby and nearly glabrous branching plant; with alternate deltoid
cordate toothed leaves, on slender petioles, and large nodding heads on
short peduncles. Ray and disk yellow.
V. carpesioides (DC.! 1. c.)—Nutt.! in brans. Amer. phil. soc. 1. c. p. 395.
California, Douglas! Nuttall! (In rocky situations around St. Barbara,
near the sea.)—Leaves like those of Campanula rhomboidalis. Head, with
the conspicuous rays, 2 inches in diameter.
151. EGLETES. Cass. d iet.; Less. syn.p.252; Nu tt.l.c .
Egletes & Leucopsidium, DC.
Heads many-flowered ; the rays numerous, pistillate. Scales of the hemispherical
involucre ovate-lanceolate, with scarious margins, imbricated in
few series. Receptacle convex, naked. Branches of the style in the disk-
flowers terminated by a short cone. Achenia glabrous, or somewhat hairy
when young, somewhat angled or ribbed, scarcely compressed, with a short
and thickened coroniform pappus, which is more or less toothed or cleft.—
Diffuse or erect canescent or hairy branching (West Indian, Mexican, and
Arkansan) herbs ; with alternate often toothed or pinnatifid leaves. Heads
terminating the branches. Rays white; the disk yellow.
1. E. Arkansana (Nutt.) : annual, canescent, erect; cauline leaves, sessile,
lanceolate-oblong, obtuse, entire, or sparingly and slightly toothed; the
radical tapering to the base, sinuate-toothed ; rays much longer than the involucre;
corolla of the disk becoming thickened and corky at the base;
achenia sulcate-striate ; pappus laciniate-cleft.—Nutt.! in brans. Amer, phil.
soc. (n. ser.) 7. p. 394. Leucopsidium Arkansanum, DC.! prodr. 6.p. 43.
Keerlia skirrobasis, Hook. ! ic. pi. t. 240, not of DC.
Arkansas ! and Texas! Aug.—Head smaller than in Leucanthemum
vulgare : the rays linear, nearly an inch long. Pappus thickened and almost
corneous at the base, usually deeply cleft into sharper segments than is represented
in Hooker’s figure above-cited : that of E. (Leucopsidium, Benth.)
humilis is minutely and evenly toothed or cleft, more like that of E. Domin-
gensis.
152. LEUCANTHEMUM. Tourn.; DC. prodr. 6. p. 45.
Heads many-flowered ; the rays pistillate, numerous. Scales of the broad
imbricated involucre with scarious margins. Receptacle flat or convex,
naked. Corolla of the disk with a fleshy obcompressed and slightly 2-winged
tube. Achenia of the disk and ray similar, somewhat terete, striate, destitute
of pappus, or those of the ray sometimes furnished with an auriculteform
pappus.—Perennial herbs, with alternate mostly toothed or pinnatifid leaves,
and large solitary heads terminating the stem or branches. Rays white or
occasionally reddish; the disk yellow.
§ Achenia of the ray as well as the disk destitute of pappus: flowers all
fertile.—P h a l a c r o g l o s s u m , DC. (Chrysanthemum, Less.)