40 Natural History Bulletin. 



12. Agaricus illudens. — Schvj. 



Pileus convex, then more or less perfectly expanded, 

 smooth, slightly umbonate, orange yellow; lamellae narrow 

 unequally decurrent; stipe long solid, tapering downward. 



Height 4' -lo'. Pileus 2' -6' . September. 



One of the most common of our autumnal species. It is 

 densely casspitose growing in clusters two or three feet in diam- 

 eter at the bases of stumps. Very showy, the plant receives 

 general attention and is more frequently collected than any 

 other agaric. The flesh is yellow, tough and inedible. 



13. Agaricus ochropurpureus. — Berk. 



Pileus rounded, the margin involute, pale bluish white, 

 fleshy but tough and persistent, at length depressed, but not 

 fully expanded; stipe concolorous, long, even, rather deep- 

 rooted; lamellae distant, thick, decurrent but broadest 

 behind, purple, generally dusted with the white spores. 



Height 5 '-8'. Pileus 2 '-3'. August and September. 



This is one of our most striking species. Its firmness and 

 persistence, its uniform color, and above all its broad, distant, 

 bluish gills make it easily recognizable. These characters are 

 quite well preserved in the dry specimens. The whole make- 

 up of the plant is so different from that of ordinary agarics 

 that some authorities are inclined to place this and the follow- 

 ing species in another genus, Laccaria. 



The species is quite common on wooded hill-sides in all the 

 eastern part of the State. 



14. Agaricus laccatus. — Sco^. 



Pileus thin but fleshy, convex, at length depressed and 

 somewhat scurfy or scaly, hygrophanous (changing color if 

 wet), dull reddish brown, paler when dry; stipe tough and 

 fibrous, equal, pithy, slender; lamellae broad, not decurrent, 

 purplish in color, at length powdered with the falling spores. 



Height 2 '-4'. Pileus 2 '-3'. August. 



Rather rare, well marked and not likely to be confused with 



