lsopoi/oil.] 
CXI. PROTEACE,E. 
1321 
and separated from the narrow often bulbous-based brush by a short neck or 
constriction, the clavate portion usually papillose-pubescent, rarely the style-end 
continuous and slender, the stigma terminal. Fruit a small dry and indehiscent 
nut, usually ovoid-conical, scarcely compressed and not winged, hirsute all over, 
the lower hairs or nearly all forming a long coma. — Shrubs with the habit of 
Petrophila. Leaves rigid, entire or divided, terete or flat and sometimes broad. 
Flowers yellow, pink or lilac, in dense spikes or cones, each flower sessile within 
a bract or scale, the cones hemispherical globular or ovoid, terminal or rarely 
axillary, the receptacle or rhachis, woolly, flat convex conical or cylindrical, the 
scales tomentose or villous outside, glabrous inside, imbricate, deciduous after 
flowering or if long persistent and retaining the seed, readily detached and 
always falling off with the seed, or in a few species leaving a very short persis- 
tent base. At the base of the cone are also, as in Petrophila, several imbricate 
empty bracts, forming an involucre, larger or smaller than the cone-scales and 
usually more persistent, the cones are also almost always closely surrounded by 
floral leaves. Nuts shorter than the cone-scales, and very little varied in the 
whole genus. 
The genus is limited to extratropical Australia, and is chiefly Western. Although the 
majority of the. species differ from Petrophila in the mode of breaking up the perianth, in the 
form of the style-end, and in the shape and indumentum of the nut, all these characters have 
exceptions, and perhaps the must constant one is that of the cone-scales, which in Petrophila 
remain firmly attached to the receptacle, opening spontaneously or by force for the emission of 
the nuts, whilst in Isopogon they separate from the receptacle either with the nuts or previously. 
— Bentli. 
Sect. I. Eustrobilus. — Cone-scales all with broad dilated or truncate ends, closely 
imbricate afar flowering in an areolated globidar or ovoid mass, often long, persistent, but 
breaking up when the fruit fall. Receptacle convex, conical, or cylindrical. 
Perianth glabrous or with a tuft of hairs at the end of the segments. 
Leaves much divided, with flat, pungent-pointed segments. Flowers 
yellow. Outer bracts shorter than the cone-scales. 
Petioles 2 to 3in. long. Perianth about 4 lines 1. I. petiolaris. 
Petioles 1 to l^in. long. Perianth 5 or 6 lines 2.1. anemonifolius. 
1. I. petiolaris (stalked), A. Cunn. in Ft. Br. Prot. Nov. 8 ; Bentli. FI. 
Austr. v. 347. A low bushy or procumbent shrub, nearly allied to I. anemonifolius, 
the young shoots tomentose-pubescent, the adult foliage sometimes glabrous. 
Leaves flat and ternately or pinnately divided as in I. anemonifolius, but more 
rigid and striate, the petioles usually 2 to 3in. long, the segments divaricate, 
often pungent-pointed. Cones globular, ■§■ to fin. diameter without the perianths, 
or from f to lin. when in fruit. Outer bracts few, rather broad, acuminate. 
Cone-scales broadly cuneate, very woolly outside, but with longer points than in 
1. anemonifolius. Perianth scarcely 4 lines long, glabrous except the small 
terminal tufts, the tube short. Styles of I. anemonifolius. — Meissn. in DC. Prod, 
xiv. 279. 
Hab.: North of Macintyre’s Brook, A. Cunningham ; Stanthorpe. 
2. I. anemonifolius (Anemone-leaved), Knight. Prot. 93 ; Bentli. FI. Austr. 
v. 347. A shrub of 4 to 6ft., glabrous except the cones or the branches and young 
shoots pubescent. Leaves on rather long petioles, once or twice trifid or pinately 
divided, with linear or linear-cuneate entire or 2- or 3-lobed segments, usually 
diverging or falcate, mostly pungent-pointed, rather rigid, and obscurely veined, 
the whole leaf 2 to 4in. long and nearly as broad. Cones sessile, solitary or in 
clusters of 2 or 3 at the ends of the branches, nearly globular, ^ to fin. 
diameter. Outer bracts numerous but mostly small and narrow. Cone-scales 
very numerous, woolly outside, the expanded truncate imbricate ends becoming 
glabrous with very minute points. Perianth yellow, 5 to 6 lines, glabrous except 
the terminal tufts of short hairs. Style-end clavate, minutely papillose-pubescent, 
separated by a short constriction from the bulbous base of the nearly glabrous brush. 
