OB’ SOUTH AUSTRALIA. 
130 
( C ) PILEUS CONFLUENT WITH, BUT HETEROGENEOUS FROM, THE CARTILAGINOUS STEM. 
*Gills adnate or sinuato-adnate. 
fMargin of pileus at first incurved, or exceeding the gills. 
PSILOCYBE Fr. 
(Gr., psilos, naked; Tcy'be, a head.) 
“Pileus fleshy, regular; margin at first incurved. Stem central, cartilaginous. 
Gills adnate, sinuato-adnate or adnexed. Spores purple, fuscous or rarely pinkish 
fuscous; elliptical, pip-shaped, almond-shaped or oblong elliptical; smooth or 
verrucose; with an apical germ-pore. Cystidia present. Growing on the ground 
or on wood, solitary, gregarious, caespit'ose or subcaespitese.” — Rea. 
The species of Psilocybe grow on the ground, on decayed wood or round 
stumps. The veil is scarcely noticeable or absent entirely — hence the name — and 
there is in consequence no ring nor fragments of it appendiculate to the margin. 
Tlie genus corresponds to Collybia amongst the white-spored species. The margin 
of the pileus is incurved when young. We possess several species, some of 
moderate size, amongst' these being Ps. sarcoaephala which somewhat resembles 
the common mushroom, Ps. Ceres of a beautiful Morocco or tomato red, and the 
tall-stemmed Ps. mb aeruginosa with its cap often blotched with bluish green. 
One species grows in sand, two are common on dung, another is found amongst 
moss, and others oil rotting logs or stumps. 
KEY TO THE SPECIES. 
Large, 1 to 3in. 
Pileus fleshy, pinkish brown to brownish tan. Gills 
near mushroom, pink. (Spores dull vinous-brown, 
8.5 to 9 x 4 to 5.5 y 209. Ps. saroocephald. 
Pileus brightly coloured with Morocco red, tomato 
red, vinaceous rufous, etc. Gills greyish 
brown becoming purplish brown. Spores purplish 
brown, 10 to 12 xj 5.6 46 7 y 210. Ps. Ceres. 
Pileus brownish, more or less evidently blotched 
with bluisli-green. Stem tall (2 to 5in.), slender, 
similarly blotched. Spores purplish fuscous, 11 
to 14 x 6.4 to 9 m 211. Ps. sub aeruginosa. 
Pileus 3in., brownish, shaggy from fibrils. Stem 6in., 
shaggy. Spores rough, becoming' black, 8.5 to 
12 x 7 |U. Densely caespitose in old stump . . 212. Ps. asperospora. 
Smaller, rarely more than lin. 
Growing on very sandy soil. 
Pileus semimembranaceous, hygroplianous, dark 
brown becoming cinnamon buff. Stem long, 
the buried half sand-encrusted. Spores 
fuscous, 11 to 13 x 5.5 to 6 m 213. Ps. subaunmophila. 
Growing on dung, hygroplianous. 
Gills adnate, passing straight to the stem, 
rather triangular, sometimes with a 
decurrent tooth. Spores large. 
Pileus cinnamon to yellow and ochraceous, 
convex, hygrophanous, slightly viscid. 
Ring often evanescent. Stem usually 
about lin., pallid 205. Stroplmria merdarui 
Pileus isabelline to ochraceous, c ( Psilocybe merdaria). 
lato-convex or hemispherical, subviseid. 
Stem tall, usually Sin 214. Psilocybe mb'uda. 
Gills adnat'e, typically subtriangular. Spores 
6.5 x 5 , 11 . 
Pileus tawny, russet or cinnamon brown. 
Stem dark brown 
215. Ps. subviscida 
