THE LARGER FUNGI 
I 
2 
(C) PILEUS CONFLUENT WITH, BUT HETEROGENEOUS FROM, THE CARTILAGINOUS 
STEM. 
* Gills adnate ot sinuato-adnat'e. 
t Margin of pileus at first incurved, or exceeding the gills. 
COLLYBIA Fr, 
(Gr., Icollybos, a small coin.) 
‘‘Pileus fleshy, membranaceous, regular; margin incurved. Stem central 
cartilaginous. Gills adnate, adnexed or free. Spores white, rarely yellowish 
greenish or brownish-red; elliptical, globose, oblong or pip-shaped; smooth, 
verrucose, punctate or echinulate ; continuous. Cystidia present or absent. 
Growing on the ground or on wood; solitary or c-aespitose. ” — Eea. 
Not many species of Collybia have so far been recognised in South Australia. 
They are said mostly to be thin-capped mushrooms growing on decayed wood, 
buried sticks, etc., and differing from species of Marasmms in not reviving 
after being dried. It would seem as though there were bridging species between 
these two genera and particular species have been placed now in the one, now 
in the other, according to the opinion of the individual mycologist:. Collybia 
differs from My cena in the margin of the pileus when young being incurved 
and exceeding the gills and in the pileus expanding, which is uncommon in 
MycenM. It may be difficult to place pin nls if specimens in the young stage are 
not available. Some species are relatively large and grow on the ground. 
Amongst these is Collybia radicata, a European species not uncommon with us, 
with dark olive brown cap, contrasting with the white gills, and a long stem with 
a very long root. 
KEY TO THE SPECIES. 
Gills white or brightly coloured, not cinereous. 
Stem stout, sulrate or fibrillosely striate. 
Gills broad, subdistant. 
With a long tapering root. 
Pileus dark-brown, gills white, spores 
large 54. Collybia radicata. 
Not rooting. 
Pileus blackish-brown becoming 
lacerated, stem twisted, whitish . . 55. C. tortipes. 
Gills narrow, crowded. 
Large. Pileus and stem smoky-brown. 
Spores 9 x 5.5 y. In grassy places . . 56. C. abutyracea. 
Stem thin, velvety, floccose or pruinose. 
Gills broad, subdistant. 
Tawny to ochraceous. Stem densely vel- 
vety, ochraceous to brown. Caespitose, 
on wooil 57 . c. velutipes. 
Gills very narrow, crowded. 
Pileus colour of dead grass to Verona 
brown, radiately rugose, thin. Stem 
whitish to brownish velutinate, Caes- 
pitose with mycelial strands. Spores 8 
to 13 x 4 to 5.5 y 58. C. ingrata. 
Pileus Rood's brown drying like the gills 
and stem light pinkish cinnamon. Stem 
villose with pale hairs. Not caespitose, 
with mycelial strands amongst pine 
needles 59. C. piniaolens. 
Pileus brown, resting close to ground. 
Stem densely velutinate, near rust- 
coloured, root penetrating deeply . . . . 60. C. penetrans. 
