OF SOUTH AUSTRALIA. 
85 
This is apparently the Australian representative of Mycena vulgaris (Pers.) 
Fr., but tends to lie larger anrl darker in colour, is without' a definite papilla 
and the pilous is not definitely viscid. Cooke's Illustrations of British Fungi 
(PI. 191) are not very like our plants. 
Recognised by the glutinous pallid brownish (drab) stem and the convex 
umbilieated brown pileus. 
VIII. Stem dry, rootless, the base naked and dilated into a disc or stigose and 
swollen into a little bulb. Tender, solitary, becoming flaccid. 
.SI. Mycena subalbida del. (L., subalbidus, whitish). — Pileus up to {in. 
( (5.2 mm.), usually less, conico-campanulate to convex, sometimes dimpled, some- 
times gibbous or umbonate, ribbed, mealy or scurfy to glabrous, white with a 
greyish-brown or c-reamy tint. Gills adnate, attached to a collar, ascending, 
slightly ventricose, rather narrow, about 12 to 14 in number with shorter ones 
interposed, pallid greyish white. Stem 3/16 to Jin. (4.5 to 10 mm.), curved, 
very slender, mealy to smooth, white to pallid, sometimes slightly brownish below, 
attached by a minute slightly strigose disc. Spores subsplierieal, 9 to 1 1 g, 10 x 
5.4 g, 9.5 x 6.5 g; the cells on the edges of the gills bristling with minute pro- 
cesses; eystidia, 25 g long, with tapering apices and ventricose bases seen in one 
batch of specimens. South Australia — On mossy bark of elms (Ulmus camprslrix 
L.), North Terrace, Adelaide; on bark of Schi-ims Mollr L., Fullarton; on trunk. 
National Park. June, July. The species seems to be related to M. corlirola 
Fr. and M. hitmalis (Osb.) Fr. but differs and belongs to this section (Basipedes) 
by having a definite though small disc. (Figure 15 A.) 
82. Mycena tenerrima Berk. (L., Itnern m-ii-s, very thin). — At first a minute 
knob with frosted granules. Pileus (in. or a little more (3 mm.), broadly 
campaxmlat'e or conico-eonvex, the centre slightly flat on top or depressed, striate, 
frosted with granules, pure white or with a greyish tinge. Gills adnexed or 
just free, no collar, slightly ventricose. Stem {in. (10 mm.), very slender, with 
white granules or minute hairs, attached to wood by a minute mealy bulb. 
Microscopically the cell-like hyphae of the pileus are covered with granules. 
South Australia — On the base of a Eucalyptus trunk, G-reenhill Road. National 
Park specimens have very mealy caps, the gills adnate to an indefinite collar 
and moderately close, disc mealy; in dense troops on the bark of a fallen tree. 
May, June. 
IX. Stem very thin, inserted (i.c., growing on other plants without a root or 
tubercle or flocci at the base), dry. Gills adnate, uncinate with a small decurrent 
tooth. Very tender, becoming flaccid as soon as the sun touches them. 
«•'!. Mycena subcapillaris Olel. (Near to the species M. at pit laris), — Pileus 
1 to {in. (3 to 5 mm.), 2.5 mm. high, disc dimpled, sulcate. white to pallid 
brownish. Gills adnate, rather distant, relatively few (about 14), bristling with 
eystidia ( ?), white. Stem 1 to ljin. (2.5 to 3 cm.), very slender, slightly 
translucent becoming whitish, with a few si altered hairs often with drops of 
water on them on the stem, abruptly entering the matrix. Spores rather narrow, 
7.5 x 3.7 g. On twigs, dead fallen fern fronds, etc. South Australia — Mount 
Lofty. May. 
Characterised by the white or slightly brownish dimpled sulcate pileus, rather 
distant and few gills, anrl relatively tall white stem with a few hairs on it. 
Differs from M. capillaris (Sehum.) Fr. in being distinctly larger and in the 
pileus being often brownish. 
84. Mycena albidofusca Olel. (L., tilbidus, whitish: fitscus. dark). — Pileus 
Jin. (10 mm.), convex hemispherical, umbonate, slightly striate, umbo whitish, 
rest of surface rather fuscous brown. Gills adnate with a decurrent tooth, rather 
distant, slightly greyish. Stem 2in. (5 cm.) high, very slender, with a few 
fibrils at the base, brown below, pallid above. Spores elliptical, 8 x 5.5 g. On 
the ground attached to fallen pine needles (?). South Australia — Mount Lofty. 
J une. 
Characterised by a whitish disc, brown nearly hemispherical pileus, brown stem 
and solitary habit. 
