110 ENGLISH BOTANY. 
seen simple and with a solitary anthode. Lower leaves attenuated 
into a rather long winged petiole with the wing' extending nearly 
to the base. Anthodes broader than long. Pericline about J inch 
long, the phyllaries with slender crimson points. Florets of the 
disk yellow, those of the ray bright-purple, very numerous. Achenes 
pubescent, yellowish, about as long as the pappus. Plant green, 
rather thickly clothed with articulated hairs in [British specimens, 
but on the Continent the leaves are sometimes nearly glabrous 
with ciliated edges. 
E. unillorum (Sm. not Linn.) is undistinguishablc ; the true 
E. uniflorus of continental botanists has the pericline glandular and 
the tubular flowers all perfect. 
Alpine Fleabane. 
French, Vergerette des Alpes. 
GENUS XXIII — A STER. Linn. 
Anthodes hetcrogamous and radiant, or rarely discoid and 
liomogamous, many-flowered. Pericline hemispherical or cam- 
panulate, consisting of numerous rows of imbricated herbaceous 
phyllaries. Clinanth flat, pitted ; pits more or less distinctly 
surrounded by a denticulated membrane. [Florets of the disk 
perfect, with a tubular corolla ; those of the ray in a single row, 
female or neuter, ligulate, more rarely absent. Achenes more or 
less compressed, without ribs. Pappus of several rows of shortly- 
ciliated nearly equal hairs. 
Perennial (rarely annual) herbs with alternate leaves and 
corymbose or paniculate or racemose anthodes, with the florets 
of the disk yellow, sometimes changing to purple ; those of the 
ray white, purple, or blue. 
The name of this genus of plants comes from acmjo ((tster), a star, the flowers 
assuming the stellate or radiate form. 
Section I. — AMELLUS. Adam. 
Elorets of the disk tubular and perfect ; those of the ray ligulate 
and female, more rarely absent. 
SPECIES I.— ASTER TRIPOLIUM. Linn. 
IYatk I XVI, XXVI. 
Reich. I.-. FL Germ, et lIV.lv. Vol. XVI. Tab. OMVIL 
Tripolium vulgare, Ifees, 1). C. Prod. Vol. V. p. 253. 
