Notes and Brief Articles 



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glabrous or finely floccose; lamellae adnate or adnexed, often 

 seceding at an early stage so as to appear free; spores smooth, 

 green ; stipe central, cartilaginous ; veil, if present, not forming an 

 annulus. 



The type of this genus is Agaricus olivaesporus Ellis & Ev., 

 described below. 



Chlorosperma olivaespora (Ellis & Ev.) comb. nov. 



Agaricus eximius Peck, Ann. Rep. N. Y. State Mus. 24: 70. 



1872; not A. eximius C. P. Laest. Lapp. Torn. i860. 

 Agaricus olivaesporus Ellis & Ev. Jour. Myc. 5: 27. 1889. 

 Hypholoma vinosum Kauffrn. Agar. Mich. 1 : 261. 1918. 

 Pilosace Peckii House, Bull. N. Y. State Mus. 205-206 : 39. 1919. 



Pileus thin, fleshy, fragile, convex or campanulate to expanded, 

 subumbonate, solitary to subcespitose, 1-2 cm. broad ; surface 

 smooth or obscurely rugulose, pulverulent-floccose, becoming nearly 

 glabrous, dark-brick-colored when moist, purplish-umber when 

 dry, at length dark-sooty-brown ; margin appendiculate at first with 

 pale fragments of the veil ; context thin, dingy-white, fragile, with 

 very sweet odor and taste ; lamellae adnate, seceding, crowded, 

 rather broad, rounded behind, nearly plane to ventricose, entire on 

 the edges, purplish-violet or purplish-brown to chestnut-brown, be- 

 coming lighter when dry and more or less tinged with brick-red; 

 spores ellipsoid, smooth, olive-brown when fresh, umber-brown on 

 drying, olivaceous under the microscope, about 5x3^; cystidia 

 none ; stipe slender, equal, colored and clothed like the pileus, carti- 

 laginous, fistulose, rather brittle, exuding a slight purplish juice 

 when broken, 2-4 cm. long, 1-2 mm. thick. 



Type locality : Newfield, New Jersey. 



Habitat: On much-decayed wood, stumps, or logs in mixed 

 woods, or among moss in swamps. 



Distribution : Rare in New York, New Jersey, Pennsylvania, 

 Ohio, and Michigan. 



Illustration : Hard, Mushr. f. 259. 



Exsiccati : Ellis & Ev. N. Am. Fungi 2009. 



Peck's type specimens were collected on old stumps in woods at 

 Greig, New York, in August, 1870. The sheet containing these 

 has others from Old Forge, Indian Lake, and Felt House, with a 

 drawing in color. Peck describes the gills as reddish, and later 



