38 Natural History Bulletin. 



the color assumed in drying, "dull pinkish red." This seems 

 a very characteristic feature. 



8. Agaricus naucinoides. — Pk. 



Pileus at first spheroidal, then convex expanded, fleshy, soft 

 and smooth, white or sometimes alutaceous, shining; lamellae 

 white at length with a pinkish tinge, free; stipe smooth and 

 white, bulbous and furnished with conspicuous ring. 



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



This very pretty species is exceedingly common in its season 

 on lawns and grassy places generally. The blue grass which 

 is fatal to so much of our flora seems but to afford this fungus 

 nutritious habitat. 



The species is edible and said by epicures to compare favor- 

 ably with Agaricus campest}'is, the English mushroom. 



In the 23rd Report of the N. Y. State Museum Dr. Peck 

 referred this species to A. naucinus Fr. Subsequently in the 

 29th Report of the same admirable series, he gives reasons 

 for creating a new species for the American plant, viz., the 

 sub-elliptical spores, very smooth pileus, and absence of an 

 umbo. Our specimens would be often well described as um- 

 bonate, but the spores are sub-elliptical and of the size quoted 

 — .006X.0075 nim. 



Subgenus Armillaria. 



Veil partial, annular. Hymenophorum confluent with the 

 stem. — Berk. 



9. Agaricus melleus. — VahL 



Pileus fleshy, margin at first incurved then expanded, rough 

 with minute blackish hair-like scales; lamellae white, almost 

 decurrent; stipe fibrous, tough, solid, white or of the color of 

 the pileus, yellowish brown; annulus, slight. 



Height 3'-8'. Pileus 2'-4'. September. 



Very common throughout the autumn months and very 

 variable both in color, form and habit. Sometimes it occurs 



