Helichrysum. } LXII. COMPOSITA. 617 
3. H. filifolium, F. Muell. Fragm. iii. 134. A slender ap? annual, 
om or nearly so, simple or corymbosely branched, 6 in. to 1 ft. high. 
aves very nerrow-linear, the lower ones often opposite. Tuna ene 
al 
—Xanthochrysum filifolium, 'Turcz. i n Bull. Mosc. 1851, i. 199. t.4 (the 
upper hairs of the achene mistaken for an outer pappans) Helper tenel- 
lum, A. ike in Hook. Ben SDR urn. iv. 230, not of Tur 
Australia, Dru d, 3rd Coll. n. 119 or 219. 
This id the preceding s m (which are very Sie allied) have the pappus-bristles 
more EST be barbellate than usually in the genus, but scarcely enough so to be classed 
with the plumose Sc of Helipterum. 
semiferti Zo F. Muell. Rep. Babb. Exped. 14. An erect much- 
branched annual of 2 to 6 in., very slightly woolly-tomentose or glabrous. 
Leaves narrow-linear, Zeen lower-heads on very short peduncles, form- 
ing an irregular leafy corymb. Involucre ovoid-campanulate, about 3 lines 
long, the outer ide sessile, obtuse and appressed, brown or pale-coloured, 
the innermost wit ong whitish or bright yellow radiating lamine, smaller 
than in the Loterie species. orets 10 to 15, some of the inner ones fre- 
quently sterile. Achenes sprinkled with erect transparent hairs. Pappus- 
bristles rather numer ous, barbellate especially towards the end.—Pteropogon 
pee F. Muell. in Lifinea, xxv. 412. 
S. Wales. Goyinga mountains, Victorian Expedition ; between Stokes range 
md Cooper’ s Creek, Wheeler. 
S. Australia. ` Between Flinders range and Spencer’s Gulf, near Cudnaka, F. Mueller ; 
Wills Creek, Howitt’s Expedition 
Section II. XERocHLENA.— Herbaceous perennials, sometimes page at 
E pue rarely flowering also the first year so as to appear annual. Inv 
cre broad, emispherical, the outer bracts sessile, passing more or v 
E. lly into inner ones with linear or broad scarious claws and petal- 
like radiating laminz (scarcely conspicuous in H. rutidolepis), the tn 
ofall often shorter and narrower. Receptacle flat or convex. Achenes gla- 
brous, papillose, or very rarely shortly villous. 
3 H. Mead. Cunn.; DC. Prod. vi. 193. Stems shortly branch- 
| gan woody at the base, with erect usually simple rather slender 
— but rigid branches of 3 to 13 ft., white with a close cottony wool. Leaves 
W-linear, 3 to 1 in, long, with revolute margins, cottony-white when 
young, at lect E above. Flower-heads terminal and so olitary. In- 
Yolucre broadly hemispherical, expanding to above 1 in. diameter, the bracts 
` M many rows, sometimes slightly woolly at the base, all elegantly ciliate, the 
S outer ones short, broadly ee usually tinged wit th brown n, passing into 
toured on slender claws, the i ash: rows much shorter with small Cem 
 hminge, Florets very numerous, not half so long as the involucre. Achenes 
: glabrous, Pappus of 6 to 8 marr simple at the base, more or less plu- 
