SOUTH-WEST AUSTRALIAN COMPOSITÆ. 271 
mosæ ; fl. steril. apice penicillato-plumosæ, inferne nudiuseule. In- 
volucrum appendiculis ovalibus oblongisve eximie radians. 
A. multicaule (n. sp.): glaberrimum ; foliis brevibus (2-4 lin. longis) 
anguste linearibus vel subspathulatis obtusis crassiusculis; involucro 
basi scarioso squarroso; receptaculo e basi lata apiculato-conico. 
—Variat a, radiis involucri lacteis ; 8, radiis involucri flavescentibus 
et subæruginosis. 
Swan River, Drummond.—Stems a span or more in height. Heads 
depressed, nearly an inch in diameter, including the spreading involu- 
cral rays. Pappus rather longer than the corolla. The uppermost of 
the mass of white hairs which so densely clothe the achenium attain, 
in the outer and truly fertile series, to more than half the length of the 
pappus. 
2. À. rubellum (n. sp.): foliis lineari-lanceolatis acutis caulibusque 
tenellis glanduloso-puberulis ; receptaculo convexo in centro subula- 
_to-producto ; radiis involucri campanulati roseis. 
Between Swan River and King George Sound, Drummond.—Stems 
3-5 inches high, few or solitary. Leaves $ to 1 inch long; the 
uppermost minute. Heads smaller than in the preceding. Fertile 
achenia clothed with rather shorter silky hairs; the pappus of more 
setiform and strongly plumose pales, much longer than the corolla. 
The centre of the receptacle rises into a narrow and sharp-pointed 
eolumn; the sides of this prolongation, as in the preceding species, 
bear the infertile, its apex the truly abortive ovaries, while the truly 
fertile flowers surround its base. 
$ IL Pappi paleæ modice plumosæ apice setiformi-attenuate nudius- 
cule ; fl. steril. conformes sed vix plumosæ. 
3. A. phyllocephalum (n. sp.): glabrum; caulibus simpliciusculis su- — 
perne usque ad capitulum sessile foliosis ; foliis lanceolatis, floralibus 
majoribus oblongis; involucri pauciserialis squamis intimis breviter 
scarioso-appendiculatis haud radiantibus ; receptaculo conico tuber- x 
eulato. vs 
South-west Australia, Drummond (received in 1850).—From the re- 
ceptacle I doubt not that this species should be associated with the 
foregoing, notwithstanding the differences indicated. 
CEPHALIPTERUM, nov. gen. 
Capitulum roultifloram heterogamum ; floribus omnibus tubulosis, mar- 
