OF SOUTH AUSTRALIA. 
i 
than the pileus. Stem 2in. (o cm.), moderately stout, slightly attenuated upwards, 
solid, the colour of the pileus. Spores subspherical, warty, apparently faintly 
tinted, 7.5 to 8.5 ft. South Australia — Mount Lofty. New' South Wales. June. 
(Plate IV. Left lower figure.) 
IV. Stem excentric or lateral. Growing on trunks. 
No South Australian species recorded. 
3. Receptacle membranaceous or fleshy membranaceous, fragile, rapidly 
putrescent or shrivelling up or drying rigid and friable. 
A. Spores ochraceous or ferruginous. 
BOLBITIUS Fr. 
(Gr., bolbiton, dung, especially cow-dung.) 
“Pileus membranaceous, regular. Stem central, not confluent with the pileus. 
lulls free or slightly adnate, acute at the edge. Spores ochraceous, ferruginous, 
fuscous or salmon colour; elliptical, elliptic oblong or almond-shaped; smooth; 
with an apical germ-pore. Cystidia present or absent. Growing on dung or on 
rich soil. ’ ’ — Rea. 
The species are delicate, putrescent fungi with ochraceous or rusty spores and 
gills which tend to deliquesce in wet weather and rapidly shrivel up in dry. They 
resemble species of Galem in appearance, differing in the tendency for the .gills 
to deliquesce, in which feature they approach Ooprinus. The genus PUtteoliis is 
also closely related differing in the gills being free and the stem being readily 
separable from the pileus. The pileus in Boibitim is thin, the stem elongated 
and hollow. The species grow on dung or rich soil. 
KEY TO THE SPECIES OP BOLBITIUS AND PLUTEOLUS. 
Pileus more or less bright yellow. Gills deliquescing 
or rapidly shrivelling. 
Pileus large ( 1 4 to 3in.), lemon-chrome to mustard 
yellow, fleshy. Gills yellowish, then watery 
brown. Stem yellowish.' Spores 13 to 17 x 7.5 
to 1,1 P . 240. Both it ius Bolt uni. 
Pileus 1 to 2in., egg-yellow, submembrnnaceous, 
sulcate-striat'e, obtuse umbo. Gills ochraceous, 
then ferruginous. Stem white or slightly yellow. 
Spores 12 to 14 x 7 to 8 /i . . *B. vitellinus. 
Pileus 1 to 2in., pale yellow, disc elevated, margin 
striate. Gills white, then yellow, then dusky 
brown. Stem yellow. Spores 10 x 6 /t . . *B. flaviclus. 
Pileus smaller, up to 1 in., light yellow, umbo 
deeper, submembranaceous, edge striate. Gills 
yellow, then pale cinnamon. Stem yellow. 
Spores 11 to 13 x 6 to 7 ft .. 241. B. fragihs. 
1 ileus pale pinkish buff. Gills not deliquescing or 
rapidly shrivelling. 
Gills free. Stem whitish. Spores 10.5 to 13 x 
s 118. Plutrolus 
eoprophilus. 
BMitius Vitellmus (Pers.) Fr. anti B. flavidus (Bolt.) Masses have not yet -been 
recognised in this State. 
240 Bolbitius Bolton! (Pers.) Fr. (After James Bolton, the English 
iwTii ' 1 lleUS t( > 3ll >- (3.8 t'o 7.5 cm.), conico-campanulate or hemis- 
pherical, then convex, finally expanded and nearly plane, very viscid, smooth or 
