202 
THE I.ARGER EUXOI 
This species has not yet l)een recorded from South Australia though it may 
occur here. It is charaetei'ised by being usually more or less hoof -shaped, and 
liaving the upper surface grey to da.rk brown, more or less zoned and sulcate, 
a crust wliich may be somewiiat laccate and usually shows a brownish-orange tint 
in the undeidying context, the context yellowish-isabelline (C. G. Lloyd) to 
Pinkish Buff or Cinnamon Bull', and minute pores. Apparently it resembles 
F. hornodermus Mont., which, according to Lloyd, never has the orange tint under 
the crust, is more applanate and has context and pore surface white wlien fresh 
but tending to become fuliginous in spots and, in the ease of the context, some- 
times quite dark. 
b. Receptacde stipitate or sessile, with a more or less laccate crust. Spores 
coloured, truncate at the base. 
GANODERMA (Karst.) Pat. 
(Gr., ganos, shining; derma, skin.) 
“Pileus corky, stipitate or sessile, covered with a resinous, laccate crust. 
Stem lateral, rarely central, or none. Tubes heterogeneous, often stratose. Flesh 
coloured. Spores coloured, elliptical, ovate oblong or obovate, truncate at the 
base, smooth, punctate, verrucose or echinulate, th|ck-walled. Cystidia none or 
rare. Annual or perennial. Growing on wood, rarely on tlie ground.” — Rea. 
The genus Ganoderma is characterised by the laccate crust and the coloured 
truncate spores. The sometimes very large species G. appUmatum is not common 
in South Australia as it is at the’ bases of trunks in the rain-forests of the 
Eastern States. 'Phe species that we have described as G. polymorphum was 
found in a very unexpected locality for a member of this genus, namely, the 
very dry north-west of the State; it was found growing on the timber down a 
well so that it had, even in this dry locality, moisture as well as warmth for its 
development; the tinger-like appearance presented by many of the abortive 
fructiheations is due to the situation in which the plants grew and is paralleled 
elsewhere, as in mines, by similar finger-like growths of G. lucidwm. G. luoidum 
(Leyss.) Karst., rec.oriled from Queensland and Tasmania, is a very handsome 
stalked species with a. polislied strongly laccate pileus and stem, the stem being 
usually lateral but sometimes central. In New' South Wales, a sessile form 
related to G. lucidum is found, with a dark polished surface, -which Lloyd refers 
to G. sessilis Murrill. 
KEY TO THE SPECIES. 
Sessile. 
Context chestnut umber. 
V ery large, up to 8 x 3in. usually applanate, 
not heavy, with laccate brown crust. Spores 
brown, verrucose, truncate, 10 to 11 x 7.5 /x. 308. Ganoderma 
applanatum. 
With a lateral stem. 
Context sayal brown, snuff browm and pinkish buff. 
Often deformed and digitate. Crust hard, 
laccate in places. Rood ’s brown to Vandyke 
brown. Spores brown, verrucose, truncate, 
10 x (i.5 IX 309. G. polymorphum. 
308. Ganoderma applanatum (Pers.) Pat. (L., applanatus, flattened). — Pileus 
applanate, ungulate or irregular, up to 31 in. laterally x Sin. from before back- 
wards X 3in. thick (52.5 x 20 x 7.5 cm.) or larger (in more tropical parts), surface 
dull with a hard firm crust, often very irregular or even nodular, sometimes 
sulcately zoned, near Rocxl’s Brown (xxviii. ), edge somewdiat rounded and 
subtomentose, laterally attached over a considerable area but usuallv not for 
the whole of the lateral extent, occasionally substipitate. Context relatively 
rather light in weight, firm-corky, tough to cut, occupying about one-third to 
more tlian half the thickness, sometimes with layers of crust-like inclusions, 
near Auburn (ll.) or darker. Tubes 1 to 5 cm. long, obscurely stratose, near 
