266 
Characters of some South-west Australian COMPOSITÆ, principally of 
the Subtribe GNAPHALIEZ ; by Dn. Asa Gray. 
(Continued from p. 232.) 
Preropocon, DC. Prodr. v. 6. p. 245, non Nees! 
Char. Gen. Reform.—Capitulum 3-12-florum (raro 15—40-florum), ho- 
mogamum ; nempe floribus omnibus tubulosis hermaphroditis, sed 
paucis centralibus ovario inani sterilibus.  Znvolucrum cylindraceum 
vel oblongum, pauci-pluriseriale; squamis scariosis glabris conniven- 
tibus, inappendiculatis, seu intimis lamina petaloidea brevi superatis. 
Receptaculum angustum, planum, epaleaceum. Corolle tubulosæ, 5- 
dentate, rarius 3—4-dentatz. Anthere basi caudate. Styl rami 
apice truncati v. capitellati. Achenia turbinata vel oblonga, eros- 
tria, sepissime sericeo-villosissima ; sterilia inania. Pappus unise- 
rialis, setis rigidiusculis distinctis vel ima basi concretis conferte plu- 
mosis.—Herbæ annus Nove Hollandiæ austro-occidentales ; foliis 
filiformibus vel linearibus, infimis oppositis, ceteris alternis; capitu- 
lis corymbosis vel subfasciculatis, scepius fuscis, parvis vel parvulis. 
This genus, established by De Candolle on a single species, with very 
few-flowered capitula, to which a second, in some respects different, 
has lately been added by Steetz, required to have its character not only 
corrected, as to the structure of the flowers, but considerably widened, 
so that it may include several additional species which I find in the 
Hookerian Herbarium. It will not retain however the Chilian plant, 
which C. A. Meyer and Nees von Esenbeck, misled by De Candolle's 
having erroneously described the fertile flowers as “ foemineis,” have 
referred to Pteropogon, Nees von Esenbeck giving at the same time @ 
revised generic character grounded on this mistake*. This Chilian 
plant is evidently the Fucelis apiculata, Cass.; which genus I perceive 
that M. Remy (in Ann. Sci. Nat. for Sept. 1849) has referred to the 
Gnaphaliee, apparently with good reason. The plants of my third 
section prove that Steetz has correctly referred his Pteropogon spicatus 
to this genus, and likewise justify me in appending the $ IV. for a 
plant which has quite the habit of P. pygmaeus, notwithstanding the 
more numerous flowers and glabrous achenia. The fifth section tends 
to connect Pteropogon with Xyridanthe, Lindl., which has larger heads 
a Chilensis, Meyer, Ind. Sem. Hort. Petrop. vol. vi. (1839); Nees in 
inse, vol. xvi. p.399. P. dadiools, Nem, Tat Bear Vor IE wake 
