CLASSIFICATION OF AGARICS 171 



(AA) Stein stuffed by a pith, or hollow. 

 (a) Cortina present at first. 



(b) Pileus glutinous (wet), sprinkled with superficial white scales. 



//. glutinoBum Fr. (See also Flammula lenta.) 

 (bb) Pileus glabrous; gills whitish at first; odor of radish. 

 (c) Cortina cottony-flbrilloae, Bomewhal persistenl on stem or on 

 margin of pilous; pileus chestnut, reddish-gray or gra: 

 496. //. velatum Pk. 

 (cc) Cortina fugacious; pileus brick-red to reddish-oehraceous; 



spores 10-13x6-7 niicr. //. testaceum Fr. 

 (ccc) Cortina fugacious; stem slender; pileus 2-3 cm. broad, pale 

 OChraceous-tan. 1!in. //. <in<i<nium I'k. 

 (aa) Cortina not present. 

 (b) Gills bright flesh-colored or pink, turning brown only in extreme 

 age; pileus chalk-white to dingy-white. 506. //. aarcophyllum 

 Pk. 

 (bb) Gills not pinkish. 



(c) Edge of gills beaded with drops in moist weather; odor Bttf 



pileus pale tan, darker on disk. 501. H. cruatuliniforme Fr. 

 (cc) Edge of gills not beaded, 

 (d) Stem short, 2-4 cm. in length, 

 (e) Spores 12-13x6-7 micr.; pileus pale tan. 502. H. hi< male 



Bres. 

 (ee) Spores 6-9x4-5 micr. 

 (f) Pileus brick-red (moist), umbonate; spores 7-9x4-5 micr. 



510. H. magnimamma Fr. 

 (ff) Pileus yellowish-white, not umbonate; in pastures, etc. 

 H. sociale Pk. 

 (dd) Stem long and rather stout in normal specimens, white. 

 (e) Stem bulbous; cystidia long, slender, cylindrical; pileus 



whitish. 504. //. alMdulum Pk. 

 (ee) Stem equal or attenuated downward. 



(f) Stem fragile, partially hollow" pileus whitish to tan; 



odor not of radish. 503. H. longicaudum Fr. 

 (ff) Stem firm. 



(g) Pileus white or whitish, tinged tan. 



(h) Gills narrow, adnexed; pileus white; spores L5 



x 6-8 micr. 507. H. album Pk. 

 (hh) Gills rather broad, adnate at first; sterile cells on 

 edge of gills clavate-thickened at apex; stem floc- 

 cose; spores 11-13x6-7 micr. 505. //. simile sp. nov. 

 (gg) Pileus darker colored. 



(h) Gills intervenose, costate; pileus ochraceous to 

 tawny-ochraceous; edge of gills with clavate, sterile 

 cells. Spores 12-15x7-8 micr. //. neurophyllum 

 Atk. 

 (hh) Gills not costate; pileus tinged reddish to ferru- 

 ginous, with a viscid separable pellicle; spores 9-11 

 x 5-6 micr. 509. //. syrjense Karst. 



Section I. Indusiati. Cortina present in young stagi 



495. Hebeloma velatum Pk. 

 N. V. State Mus. Hull. 139, L909. 



PILEUS 2-6 cm. broad, bullate-convex at first, then expanded, 

 obtuse or nmbonate, viscid ( moist i, glabrous, becoming n 



