OF SOUTH Al'STRALIA. 
:oi 
CORTICXXM (Pers.) 
(Ij., cortex, bark.) 
•‘Receptacle waxy, crustaceous or floocose; resupinate or effused. Ilvmenium 
smooth or tubercular, waxy, continuous, often cracked. Spores white, very 
rarely coloured; ovate, elliptical, globose, oboval, ])i[)-sha])ed, pyriform, boat- 
shaped, almond shaped, subtriangular, cylindrical, cylindric ellipsoid, oblong or 
sausage-shaped; smooth, rarely granular; basidia witli 2-4-()-8 sterigmata, forming 
a honu)geneous liymenium, sometimes accompanied with sterile basidia 
(cystidioles). Cystidia none. G-rowing on wood, more rarely on leaves or on 
the ground. ’ ’ — Rea. 
KEY TO THE SPECIES OF COlxTICIUM, PENlOPHOh'A, AND 
HE B AGIN A. 
Cinnamon buff. 
Up to 25 cm., on dead wood, adnate, cracking into 
polygonal masses mostly 0.5 mm. in si/.e, margin 
paler, subfloccoso 412. Corticium hydnans. 
Whitish to ivory yellow and light buff. 
Small encrusting patches, the margin radiating 
fibrillose 413. C. radiosum. 
Light buff. 
Very extensive, thick, rarely cracking, covering 
irregularities of substratum, spores spherical, 
5 U 414. C. portentosum. 
Pale smoke grey, mouse grey, or drab grey. 
Like a thin coat of paint, 2 to 5 x 0.5 to I cm. 
in size, tending to crack 417. Peniophora cmerea. 
Rather thick, tubercular, zonate within, 1 to 4 x 
0.5 to 2 cm., sometimes as small round masses . 418. P. tiolaceo-livida. 
Ivory yellow to pinkish buff. 
11x3 cm., thin, adnate, tending to crack. Spores 
13 to 10 x 5.5 to 8 y 419. P. montana. 
Warm buff to chamois (near mustard yellow). 
Fibrillose mycelial cords spreading under fallen 
bark, fructifications smooth, cream buff . . . . 420. P. sulphurina. 
Whitish with greyish tinge. 
Like a thick layer of whitish paint, cracking, 
margin sharply defined 553. Sehaoina monticola. 
412. Corticum hydnans (Scliw.) Burt. (Syn., Radulvm hydnans Schw. ; 
Corticum coUiculosum. Berk, et Curtis). (Hydnans, here Ilydnum-hke) . — “Fructi- 
fications long and widely effused (1 to 10 cm. long, 1 to 3 cm. wide), adnate, thin, 
membranaceous, small pieces separable when moistened, pinkish-buff to cinnamon- 
buff in the herbarium, becoming more or less colliculose or somewhat tubercu- 
late, cracking into polygonal masses 1 to 2 mm. in diameter, the margin whitish, 
with hyphae interwoven; in structure 100 to 300 y thick, not coloured, with 
the hyphae longitudinally ari-anged next the substratum and then ascending and 
interwoven to the liymenium, 2 to 3 y in diameter, not incrusted ; no gloeocystidia ; 
spores hyaline, even, 5 to 8 x 2.5 to 3.5 y. ’ ’ — Burt. 
New ilouth Wales — A specimen from Macquarie Pass, August, 1917, identified 
by Prof. E. A. Burt, has fructifications 25 x (i cm. in size, on dead wood, the 
colour near Cinnamon Buff (xxix.), closely adnate, cracking into polygonal 
masses 0.3 to I mm. in size, the narrow margin paler and with a hand lens 
subfloccose. Not yet recorded for South Australia. 
413. Corticium radiosum Fr. (Syn., Thelephora radiosa Fr. ; Corticium 
pelliculum (Fr.) Karsten; Corticium alutaceum. (Schrad.) Bresadola; Gloeo- 
cystidium alutaceum (Schrad.) Bourdot et Galzin). (L., radiosus, radiating). — 
“Fructifications 3 to 15 cm. long, 1 to 7 cm. wide, broadly effused, thin, mem- 
branaceous, tender, small pieces separable, from whitish to ivory-yellow and 
cream-buff in the herbarium, even, but little cracked, the margin white, broad, 
radiating, fibrillose; in section 100 to 300 y thick, not coloured, composed of 
densely interwoven, ascending hyphae rather crowded together except where 
