12 
part of tropical Australia, particularly in 
more arid localities. 
In habit it resembles Therogeron integerri- 
mus and some Erigerons. Fertile ache- 
niums brown, smaller than the livid sterile 
ones. 
Another Australian species belonging to the 
section Stylimnus may be characterised 
as follows : — 
Pluchea ietrantliera. 
Shrubby, velvety, rarely smooth ; leaves 
ovate or linear-lanceolate, sometimes rhom- 
boid. with cuneate base tapering into the 
petiole, entire or remotely toothed; fiower- 
hcad almoiit dioecious^ disposed in a co- 
rymbose leafy panicle; outer involucre 
scales ofate, inner ones linear-lanceolate ; 
hermapliroditc flowers four-iooiliad, with 4 
stamens; female ones tubulous to the 3 
toothed apex ; bristles of the pappus capil- 
lary. 20-25, white, tliree times longer than 
the glabresecnt achcmiimi. 
Throughout the gi’eater portion of the tropi- 
cal interior of Australia. 
A shmb 4' or less liigh. Leaves long. 
Floweilieads about 4"' long; the female 
ones containing only 1-4 hermaphrodite 
flowers in the centre ; the male ojies j)ro- 
' ucing 16-22 discal hennaphrodite fiowers 
and a few female ones in the j^eriphery. 
The female flowers only fertile. Corollas 
purple. Anthers with short tails. Fertile 
aehenes brown, with appressed hair. 
Tluchea Eyrea. 
Eyrea ruhelliflora. Ford. Mueller in Lin- 
naea 1852, p. 403. 
Emu Springs, Stuart’s Creelc, Lake Gregory, 
&c. Observed by myself tlu’oughout tfie 
greater part of tropical Australia, particu- 
larly in more arid localities. 
Eluchea lignlaia. 
Seed. Khoilanthemum : flowers all fertile ; 
scales of the involucre lanceolate. 
Sulfruticope, beset with short crisp articu- 
lated hair ; leaves ovate, or more fre- 
(lucnlly lauceolate-cuneate, with a few 
sharp teeth, taperiug into the petiole ; 
capitules large, terminal, solitary ; her- 
maphrodite flowers five-tecthed. as long as 
the involucre ; Ugiiles eonspie'nons, ex~ 
serted ; anthers enclosed ; aclieues silky, 
twice or three times shorter than the 
pappus; bristles of the pappus 30-40, 
above the middle ciliate, at the apex 
ailenuaied. 
Elizabeth Creek, Lake Gregory, ^Vonnu- 
niulla Blanchewater, G. Hawker, Esq. ; 
also in Arnhem’s Land, and in other less 
fertile parts of Australia within the tropics. 
A few inches to a foot high, erect, scented, 
glaudnlous. Leaves about 1 inch long. 
I’lowerheads J inch long, campauulate, 
many-flowered, some diminutive leaves 
forming bracts at, its base. Scides of the 
mvolucre forming :i-4 rows, lanceolate, 
acute or acuminate, at the apex ciliate. 
Flowers all nurple. Lamina of the female 
flowers 2 lines long, with 2-3 teeth 
Pappus white, yellowish at the base; the 
longest bristles measuring 3 lines, below 
the middle scabrous. Achencs cylindrical, 
M ith attenuate base and trimcate summit, 
'fhe following species of Pluchea belonging like- 
wise to the section llhodanthemum Vemained 
hitherto unpublished. 
EJuchea macrocephala. 
Spreading, perennial, clammy leaves oblong 
or cimeHte-lauccoIate, touched, scabrous 
or smooth, often ciliate ; ftnuale flowers 
tubnlous to the apex, 1-5 toothed ; hrisiles 
of ike ‘F)-50, slightly yellow, 
scabrous, thicher towards the apex ; achens 
silky. 
On barren plains near the Eivers Fitzmaurice, 
Nicholson, and Flinders. 
A very odorous plant. Leaves measuring 
between f and 1^ Involucre 7-9 long. 
Periphcrical flowers forming 2-3 rows, 
sometimes longer than the involucre, white 
or red. Discal flowers red at the apex. 
Anthers occasionally quite excerted, pink, 
with short tails. Pappus about 4"' long, 
the silk at the top of the truncate ache- 
nium forming a spurious outer pappus. 
JPluchea odora. 
Erect, perennial, covered with crisp glandu- 
lous hair, rarely glabrous ; leaves linear, 
lanceolate, or ovate, entire or toothed; 
female flowers as long as the involucre, 
3-4 toothed, and often lipped; bristles 
of the pappus 30-40, yellowish, serrate- 
cilia te ; aehenes hairy-silky. 
On the sandstone table-land at the Victoria 
Eiver, and near its tributaries. 
Erom a few mches to V high. Leaves 
long, broad. Flowerheads 
scarcely long. Pappus about twice as 
long as the truncate acheuium. 
Pluchea hasiflora. 
Procumbent or spreading, coA’ered with ar- 
ticulate woolly hair; leaves sessile, lan- 
ceolate or linear-lanceolate, serrate, their 
cuneate base entire ; flowerheads axillary, 
generally many together, croieded toivards 
the base of the stems ; female flowers cylin- 
drical to the minutely three-toothed apex, 
scarcely reaching to the summit of the 
rigid involucre; hermaphrodite flowers 
four toothed; acheus nearly smooth, ^oith 
rounded, apex, clavate-cylindrical ; pappus 
stiff, white, shorter than the achenmm, flat 
towards the base ; bristles 7-12, i.mequal, 
smooth. 
On the sandy banks of the Eivers Nicholson 
and Yappar. 
A perennial odorous herb, 1' and less long. 
Leaves Flowerheads about 3"' 
long. Flowers greenish, v^'itli white apex ; 
heianaphrodite ones 3-9 in number. 
Aehenes hardly V” long, livid, streaked, 
long persistent. 
Of that section of Pluchea, designated by 
De Candolle as Blumea, arc six species 
observed in tropical Australia. Besides 
these I noticed a species perhaps distinct 
from Pluchea ligulata, in liaving scarcely 
any or very minute ligulea, in smaller 
flowerheads, more branched stems, 16-20 
almost smooth bristles of the pappus, which 
are not much longer than the achenium. 
This plant is to be found iu East Australia 
within ihe trojnes. 
Blumea may be subjugated to this genus ; 
not\^ !thstandiug the jiriority of Pluchea 
the Abysainiau plants liave been arranged 
by Achilles Eichard in a reversed combi- 
nation. 
Monenteles glohiferus, Candolle iirodr. V, 455. 
M. iutennedius, Gaud. 1. c. 
Emu Springs. To be met with also from 
Arnhem’s Lund to Moreton Bay. 
Probably a mere variety of the New Caledo- 
nian ]\T. sphacelatus. 
Epaltes Australis., Candolle prodr. V, 462. 
Stuart’s Creek. 
Myriogyne Cunninghami, Candolle prodr. V, 139. 
Stuart’s Creek. 
Kippistia. 
Capitnlum hemispherical, with numerous 
flowers; the outer ones in many rows, 
female, with a very short ligule ; the cen- 
tral ones fewer, male, four-toothed. An- 
thers with a hastate not caudate base. 
