272 SOUTH-WEST AUSTRALIAN COMPOSITÆ. 
ginalibus hermaphroditis fertilibus, centralibus abortu masculis. Jn- 
volucrum turbinatum multiseriale ; squamis omnibus tenuiter scariosis, 
exterioribus appendice brevi late ovata seu orbiculata concolore (sub- 
hyalina fusca) abrupte patente squarrosis, interioribus appendice el- 
liptica petaloidea (lactea vel flavescente) radiantibus. Receptaculum 
nudum planum. Corolle conformes, infundibulari-tubulose, 5-den- 
iate. Anthere basi breviter bisetæ. Stylus fl. fertil. bifidus, ramis 
apice truncatis brevissime penicillatis; fl. steril. indivisus v. bilobus, 
apice penicillatus. Ovaria lana longissima crispata intricata. tecta, 
segre extricanda, centralia omnino abortiva pedicelliformia. Achenia 
marginalia obovata, longissime lanata. Pappus fl. fertil. duplex, 
nempe exterior constans palea unica parva auriculæformi ovata in- 
ferne setis piliformibus numerosis corolla dimidio breviore prædita, 
interiore paleis setiformibus circ. 4 corollam æquantibus mox deciduis 
basi filiformi nudis superne sensim incrassatis barbellatis apice dense 
barbato-plumosis; fl. steril. e setis 4 filiformibus longe nudis vel : 
dentieulatis apice barbato-plumosis, et palea exteriore minima, in 
centralibus ad coronulam cupulæformem nudam reducta.—Herba : 
gracilis subpedalis, glabrata, e radice multicaulis, erecta; foliis al- 
ternis lineari-lanceolatis, radicalibus subspathulatis; capitulis plu- 
rimis ad apicem caulis dense congestis glomerulum subglobosum nu- 
dum formantibus!  Pappus apice nigrescens. 
C. Drummondii.—Variat a, appendicibus radiantibus involucri lacteis ; 
et B, flavidis in sieco subæruginosis. | 
Swan River, Drummond.—This remarkably distinct genus is allied, 
no doubt, to Helipterum, through Acroclinium, and to Schenia; but is 
abundantly distinguished from all three, as well by its curious pappus 
as its glomerate capitula. The achenia and abortive ovaria are en- 
tangled in an almost inextricable mass by the extremely long and crisped 
wool, with which they are densely clothed. The short and stout bristly 
hairs which form the plume or tuft at the apex of the longer pappus are 
recurved or crisped when dry. The heads are 3 lines in diameter, ex- 
= elusive of the radiant petaloid appendages, which are of about the same 
_ length; and the glomerule they form is an inch in diameter. 
CoNANTHODIUM, nov. gen. 
~ Capitulum multiflorum homogamum. Involucrum cylindraceo-turbina- 
on tum, pluriseriale ; squamis coriaceis gradatim imbricatis, exterioribus 
