Agaricacese 



UDI. Pileus smooth, not viscid; veil fragmentary, etc. 



(Plate LXXVI0.) 



FLAMMULA ALNICOLA. 

 Two-thirds natural size. 



Fiammuia. F. alni cola Fr. aluus, alder; colo t to inhabit. Pileus 2-3 in. 



broad, yellow, at length becom- 

 ing rust-color and sometimes 

 green, fleshy, convex then flat- 

 tened, obtuse, slimy when moist, 

 but not truly viscous, at the first 

 superficially fibrillose toward the 

 margin. Flesh not very com- 

 pact, of the same color as the 

 pileus. Stem 2-3 in. and more 

 long, % in. thick, stuffed then 

 hollow, attenuato-rooted, com- 

 monly curved-flexuous, fibrillose, 

 at first yellow, then becoming 

 rust-color. Veil manifest, some- 

 times fibrillose, sometimes woven 

 into a spider-web veil. Gills 

 somewhat adnate, broad, plane, 

 at first dingy-pallid or yellowish- 

 pallid, at length together with the plentiful spores rust-colored. 



The gills vary decurrent and rounded according to situation. Odor 

 and taste bitter. There are two forms: a. Pileus irregular, fibrillose 

 round the margin; gills at first dingy -pallid, b. Salicicola, pileus some- 

 what convex, smooth, rarely at the first downy-scaly; gills at first 

 yellowish-pallid. Fries. 



Spores subelliptical, 8x5/i K.; 8-10x5-6;* Peck. 

 New York, swampy woods about base of alders, October, Peck, 

 Rep. 35; at base of alders, with adnate gills, and on birch stumps, 

 with the gills rounded behind, Rep. 39. Mt. Gretna, Pa., New Jersey, 

 mixed woods, August to November, 1898, Mcllvaine. 



Gregarious and in loose tufts, not plentiful. It is a pretty plant, 

 usually of a bright yellow, sometimes darker at the center of cap. 

 Traces of an evanescent fibrillose ring are occasionally found or the fibrils 

 adorn the margin of the cap. The gills next to the stem are either 

 rounded, attached or slightly decurrent. 



Raw the taste is slightly bitter. This disappears in long cooking. 



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