Petrophila. } CIV. PROTEACEX. 0 IM 
1. PETROPHILA, R. Br. 
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uced into a small appendage. gynous scales. 
with a single or very rarely 2 collateral ovules, pendulous from near 
the apex of the cavity, and orthotropous or slightly amphitropous. Style 
filiform, either dilated and truncate towards the end under a slender 
or continuous and fusiform brush, always glabrous below the brush, 
the brush usually shortly hispid or papillose, at least before the ex- 
i glabr erminal stigma. Frui 
w. Flowers usually white or 
i rrow. 
yellow, in dense nme or cones, each flower sessile within a bract or 
0 
rT How ca 
ul bracts forming an involuere sometimes larger than the scales 
M E them, usually smaller, persistent or deciduous. n 
of thes species new leaves and shoots form in the axils of the innermost 
sean pwi bracts, which ultimately fall away, leaving the old cones 
FRY in f e forks of the branches without empty outer ts 
L Shorter than the scales, the points rarely but the coma fre- 
quently protruding. 
closely genus is limited to extratropical Australia and is chiefly Western. Like the 
y allied Isopogon, it differs chiefly from the South African genera of the 
S * 
Style ial throstigma.— Leaves undivided. Cones terminal, usually large. 
Leaves t, ned and truncate below the narrow villous or hirsute brush. 
8 : : ; 
Beales of as ighily grooved in P. acicul 
bru h 
very densely and closely tomentose-villous, much 
narro ` d. P. teretifolia. 
rigi 
Style-br 2. P. longifolia. 
than 
TY numerous, linear.subula . 9. P. media. 
