AUSTRALIAN FUNGI. 
125 
655. Polyporus portentosus. Berk. Hook. Journ. 1845. 
Sacc. Syll. vi., 5212. 
Sessile, very large ; pileus fleshy, at length friable, pnlvinate, 
elevated at the vertex, quite smooth, without zones, covered with 
a thin tan-coloured cuticle (12-25 c.m. diam., 12 cm. thick); 
margin rather thin, flexnous ; hymenium convex, pores propor- 
tionately small, internally pallid, externally brown, at length 
receding, dissepiments thin (820 p diam.) ; substance snowy white 
(often channelled by insects). 
On trunks. Victoria. N. 8. Wales. W. Australia. S. Aus- 
tralia. Tasmania. 
656. Polyporus eucalyptorum. Fr. PI. Preiss. 135. Sacc. 
Syll. v., 5216. 
Pileus dimidiate, adnate, hoof-shaped, without zones, substance 
thick, very soft, white, invested with a thin, smooth, evanescent, 
dark-brown crust (18-19 c.m. broad, 7-10 c.m. thick at the base) ; 
pores short, small, falling away. 
On Eucalyptus trunks. Victoria. W. Australia. 
657. Polyporus strumosus. Fr. Epic. 462. Sacc. Syll. vi., 
5220. 
Pileus fleshy, tough, then very hard, convex, gibbous, without 
zones, sooty- brown, pruinose with grey ; margin acute, turning 
black, internally fibrously zoned, greyish-white ; pores short, small, 
crowded, sooty-brown, then grey, decurrent at the base. 
On trunks. Victoria. 
m. Lignbscentbs. Pileus more or less concentrically sulcate or 
striate, and the substance, when growing, soft and juicy, then 
coriaceous, contracting when dry, and commonly curved. 
* Substance white. 
658. Polyporus liypopolius. Kalch. Grev. x., 99. Sacc. 
Ayll. vi., 5227. 
Pileus coriaceous, woody, hard, effused and reflexed, somewhat 
shell-shaped or resupinate, covered with a rigid, chestnut coloured 
crust, rough with thick tubercles, zoned at the acute margin (2-|- 
5 c.m. long, 10-12 c.m. broad) ; pores of medium size, short (1 
line), rather angular, elongated and torn, white, then wood colour 
and hoary. 
On trunks. Queensland. 
659. Polyporus cartilagineus. B. <j- Br. Linn. Journ. xiv., 
49. Sacc. Syll. vi., 5232. 
Pileus dimidiate or fixed at the centre, rufous, then sooty-brown, 
rather zoned, cuticle cartilaginous, tuberculose behind (2^ c.m. 
broad, 12-18 m.m. long) ; substance whitish, at length pale brown ; 
pores minute (1-5 m.m. diam.). 
On dead wood. Queensland. 
