336 CIV. PROTEACER, | Petrophila, 
seen however very perfect. Style pubescent from the base, tomentose- 
villous and slightly thickened upwards but not distinctly fusiform at 
the end. 
WV. Australia. Murchison river, Oldfield. 
9. ISOPOGON, R. Br. 
Flowers hermaphrodite. Perianth regular, the tube slender, the 
a portion falling off entire with the 4 linear or oblong segments 
the limb, leaving a persistent base which finally splits or is cast off as 
the fruit ripens. Anthers all perfect and free, sessile within the seg- 
ments of the limb, the connective tipped with a small appendage. 
h Ovary sessi 
ME DRURSDOUE ovule, pendulous from near the apex of the cavity. 
filiform, usually more or less dilated or clavate towards the en , and 
separated from the narrow often bulbous-based brush by a short neck 
or constriction, the clavate portion usually vapillóso- pu A rarely 
the style-end continuous and slender, the stigma termina ruit à 
rarely axillary, the receptacle or rhachis woolly, flat convex c ve^ 
side, im- 
bricate, deciduous after flowering or if long persistent and retaining the 
of with the seed, or in a few 
species leaving a very short persistent base. At the base of the cone 
are also, as in Petrophila, several imbricate empty bracts, forming - 
stern. Although 
breaking t all 
, in the form of the style-end, and in the shape and indumentum of eden 
these characters have exceptions, and perhaps the most constant one 15 tha iun 
cone-scales, which in Petrophila remain firmly attached to the receptacle, ope rate 
spontaneously or by force for the emission of the nuts, whilst in /sopogo” Drm 
from the receptacle either with the nuts or previously. 
'The genus is limited to extratropical Australia, and is chiefly We 
the. Majority of the species differ from Petrophila in the mode of 
. 
nus. inner 
Secr. 1. Hypsanthus.— Cone-scales acuminate, not very closely imbricate, De is 
ons narrow. Receptacle flat, convex or rarely oblong. Leaves flat, 
I. adenanthoides. 
