Agaricacese 



Trichoioma. commonly very obscurely marked with innate fibrils or in small plants 

 may have very small flocculose tufts or scales. The flesh is whitish as 

 also are the gills, though these sometimes assume a more decided gray- 

 ish hue. They are rather broad and loose and sometimes uneven on 

 the edge or even split transversely. They are usually deeply excavated 

 next the stem and attached to it by a narrow part. The stem is whitish 

 or slightly shaded with the color of the cap. It often has a few longi- 

 tudinal fibrils, but never any collar. It may be either solid, stuffed or 

 spongy within, or in large specimens, hollow. 



The plants grow gregariously or sometimes in tufts on the ground 

 under or near trees or in thin woods, especially of pine, or in mixed 

 woods. The caps vary from 1-4 in. broad, and the stems from 1-3 in. 

 long and from 2-6 lines thick. The plants occur in autumn. In Europe 

 there is a variety of this species which also has a farinaceous odor, but 

 it differs from our plant in having reddish edges to the gills. It is called 

 variety orirubens. Peck, 49th Rep. N. Y. State Bot. 



Var. fragrans is plentiful and gregarious among New Jersey pines. 

 October to frost. Other varieties are often found. Specimens found 

 by me at Mt. Gretna, Pa., and sent to Professor Peck who identified 

 them as var. fragrans Pk., were decidedly umbonate. Gills were easily 

 separable from cap. 



Var. fragrans is a favorite. It is pleasant to many, even raw. Plenti- 

 ful salting while cooking develops a high and exquisite flavor. 



T. fumes'cens Pk. smoky. PileilS convex or expanded, dry, 

 clothed with a very minute appressed tomentum, whitish. Gills narrow, 

 crowded, rounded behind, whitish or pale cream color, changing to 

 smoky-bine .or blackish where bruised. Stem short, cylindrical, whitish. 

 Spores oblong-elliptical, 5-6.5^. 



Pileus i in. broad. Stem I-I-5 in. high, 2-3 lines thick. 



Woods. Columbia county. October. Rare. 



The species is remarkable for the smoky or blackish hue assumed by 

 the gills when bruised and also in drying. It is apparently related to 

 T. immundum Berk., but in that species the whole plant becomes 

 blackish when bruised, and the gills are marked with transverse lines 

 and tinged with pink. Peck, 44th Rep. N. Y. State Bot. 



Mt. Gretna, Pa. September to November, 1898. Mcllvaine. 



The size of cap sometimes attains to 3 in and stem to % in. in thick- 



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