REPORT OF THE STATE BOTANIST K)II 95 



6 Stem reddish brown squalidella 



6 Stem white polycephala 



7 Plant growing in woods or uncultivated places 8 



7 Plant growing in grassy places foenisecii 



8 Spores globose or subglobose phyllogena 



8 Spores ellipsoid 9 



9 Pileus less than 2.5 cm broad castanella 



9 Pileus 2.5 cm or more broad, bay brown when moist spadicea 



9 Pileus 2.5 cm or more broad, tan color when moist fuscofolia 



10 Moist pileus striatulate on the margin 11 



10 Moist pileus not striatulate on the margin nigrella 



1 1 Plant growing on decaying wood 12 



1 1 Plant growing on mud or wet ground limicola 



11 Plant growing in sphagnum fuscofulva 



12 Young lamellae whitish camptopoda 



12 Young lamellae brown or cinereous 13 



13 Stem brownish, less than 2.5 cm long unicolor 



13 Stem white, more than 2.5 cm long senex 



14 Stem white or whitish 15 



14 Stem some other color 17 



15 Pileus viscid when moist semilanceata 



15 Pileus not viscid when moist 16 



16 Pileus striate on the margin clivensis 



16 Pileus even on the margin limophila 



17 Pileus striatulate on the margin ' dichroa 



17 Pileus not striatulate on the margin 18 



18 Pileus yellowish when moist elongatipes 



18 Pileus tawny bay when moist uda 



Psilocybe caerulipes Pk. 



BLUE STEM PSILOCYBE 

 N. Y. State Mus. Rep't 38, p.89 



Pileus thin, subcampanulate becoming convex, obtuse or obtusely 

 umbonate, glabrous, hygrophanous, slightly viscid, brown and 

 striatulate on the margin when moist, yellowish or subochraceous 

 when dry, the center sometimes brownish ; lamellae at first ascend- 

 ing, close, adnate, grayish tawny becoming rusty brown, whitish on 

 the edge; stem slender, equal, flexuous, tenacious, hollow or con- 

 taining a separable pith, slightly fibrillose, pruinose at the top, 

 bluish, sometimes whitish at the top; spores 8-10x4-5 /x. 



Pileus 10-20 mm broad; stem 2.5-4 cm long, 1-1.5 nun thick. 



Cespitose or solitary. On decaying wood. Saratoga co. August- 

 Rare. 



The species may readily be recognized by its bluish stem. The 

 pileus sometimes changes to blue where bruised. The spores are 



