174 
HANDBOOK OF 
Genus 40. SISTOTREMA. Pers. 
Fungi fleshy; hymenium inferior, interruptedly lamellose and 
dentate. Teeth rather waxy, without order (not radiating), dis- 
tinct, parting freely from the pileus. Spores oval. 
943. Sistotrema irpicinum. B. <]• Br. Linn. Trans, ii., 63, 
t. 13, f. 23. Sacc. Syll. 6872. 
Pileus subcuticular, thick, delicately tomentose, pallid, descend- 
ing deeply behind ; hymenium umber, teeth irregular, here and 
there lamellose, in the descending part like an Irpex. 
On dead branches. Queensland. 
Genus 41. IRPEX. Fries. 
Hymenium inferior, from the first dentate. Teeth firm, sub- 
coriaceous, acute, continuous with the pileus, seriately or reticu- 
lately disposed ; connected at the base, the folds lamellose, or 
honeycombed. 
944. Irpex kexagonoides. Kalchb. Grev. ix., p. 1. Sacc. 
Syll. 6876. 
Wholly white; pileus between suberose and leathery, running 
down behind (2^ c.m. broad), inconspicuously zoned, softly 
villose, teeth reticulately disposed, in a honeycomb manner, and 
regular, foliaceous, rather acute. 
On trunks. N.S. Wales. 
945. Irpex zonatus. Berk. Hook. Journ. 1854. Sacc. Syll. 
6888. 
Pileus wood-colour ; pilei imbricate, rather flabelliform, coria- 
ceous, rigid, zoned, delicately tomentose, becoming smooth (10 
c.m. diam.) ; margin lobed, teeth compressed at the base (2 lines 
long), smooth. 
On dead wood. Victoria. Queensland. N.S. Wales. 
946. Irpex maximus. Mont. Ann. Sci. Nat. 1837. Sacc. 
Syll. 6891. 
Pileus coriaceous, thin, reniform, plano-convex, at the first 
covered with an evanescent pallid tomentum, becoming naked, 
repand about the margin, and concentrically sulcate (8-15 c.m. 
diam.) ; teeth crowded, acute, pubescent, reticulately connected at 
the base, ochrey-white. 
On trunks. Queensland. 
947. Irpex flavus. Klotsch. Linn, vm., 488. Sacc. Syll. 
6895. 
Pileus effused, spongy soft, yellow (2 c.m. or more) ; margin 
shortly reflexed, tomentose, teeth compressed, seriate, of the same 
colour, reticulately connected at the base. 
On trunks, etc. Victoria. Queensland. S. Australia. (Fig. 70.) 
