224 Psathyra Psttocybe. 



gossypina, Bull. P. r5 2'5 cm. campan. then exp. tomentose, 

 soon glabrous, edge striate, pale ochre ; g. adnexed ; s. 4 5 cm. 

 tomentose, whitish ; sp. 10 x 6. 



[squamosa, Karst. P. campan. exp. tawny-fuscous, tan and 

 scaly when dry ; g. adnate, crowded ; s. equal, wavy, undulate, 

 apex mealy then glabrous, shining ; sp. 6 lo x 3 5. 



Differs from P. gossypina and P. pennata in colour of p. and 

 smaller sp. 



noli-tangere, Fr. Very fragile. P. 12 cm. campan.-exp. 

 everywhere striate, hygr. squamulose near edge, pale umber then 

 pale ; g. adnate, broad ; s. brownish, apex smooth ; sp. 12 x 5. 



[laureata, Q. P. convex, mammilate, glabrous, slightly viscid, 

 greyish bistre, edge with a double row of snow-white flecks; g. 

 subdecur. broad, triangular, greyish lilac; s. pruinose at summit, 

 minutely velvety, clear grey ; sp. 8 long. 



Resembles P. noli-tangere in appearance. 



microrhiza, Lasch. P. 2 3 cm. campan. even, dry, atomate, 

 at first yellow-pilose ; g. crowded, narrow ; s. 4 5 cm. silky, white, 

 rooting; sp. 10 11x6. 



urticaecola, B. and Br. P. 4 5 mm. campan. flocculent, edge 

 becoming striate, white; g. chocolate; s. 12 cm. flocculent, white; 

 sp. 7x4. 



PSILOCYBE, Fr. 



I. TENACES. Veil accidental, rarely conspicuous. Stem 

 callous, flexile, often coloured. Pileus pelliculose, often 

 viscid in damp weather, becoming somewhat pale, 

 clear coloured. 



* Gills ventricose, not decurrent. 



sarcocephala, Fr. P. 49 cm. compact, exp. mealy then 

 glabrous, pallid rusty ; g. adnate, very broad, grey then purplish 

 bistre ; s. 712 cm. whitish, apex mealy ; sp. 7 x 3'5. 



[pertinax, Fr. P. convexo-plane, obtuse, reticulately rugose, 

 dusky-brown, disc even ; g. adnate, crowded, rusty-brown ; s. hollow, 

 fibrillosely striate, pallid. 



nemophila. Alex. P. exp. brick-red, even ; g. deeply decur. very 

 narrow, edge crisped-dentate ; s. solid, pale, fusiformly narrowed. 



helvola, Schaeff. P. 2 3 cm. conical then convex, yellow-brown, 

 disc darkest ; g. broadly adnate, broad, purple-umber, edge whitish ; 

 s. 5 6 cm. flexuous, pale, hollow; sp. obliquely elliptical, warted. 

 910x56. 



atrobrunnea, Lasch. P. campan.-convex, umb. even, brownish ; 



f. adnexed then seceding, rather distant, brownish ; s. stuffed, long, 

 brillose, apex white-mealy ; sp. 9 12 x 5 6. 



