The Agaricaccac of Ohio. 483 



A.-' 1 'ileus dry ; m a \isi,-i«l. 



r..' I'lants clianji[in^ onloi- ulicii liniist-d. m- niarknlly xi in 

 dryinf^'. 

 C riants heconiin^ l)liiisli ; pik-n.^ usually lcs> than 3 

 cm. liroa.l. S. \h:^)\ \. M. 12:246; \\. T. 26:6.^ 



/.. rnrnilcscciis Vvvk 



C.- I'laiil> ni)l bccuniinj^- hluisli ; ])iK■u-^ iimrc than 3 cm. 



l)i-oa(l. 



D.' rilcus ,^-5 cm. hniad: llc-li hccominj.^ i-cddi-~h 



when hruiscd. whole plani reddi.sh when 



hamllcd and tinally blackish w lu n rlricd ; stipe 



tint hulhoiis or clavate. J. M. 12:24'). 



L. ntfcscciis MorJ,^ 



D.-' rilciis 5-10 cm. or more hroad ; ])lants not he- 

 comini^ blackish: stii)e bulbous or clavate. 

 i\.' I'^lesh only becoming reddish when broken; 

 pileus not umbonate ; margin even. S. 29 : 

 :\f. 61; J. M. 13:'^: St. 14: Mo. 35- 



/,. rhacodcs \ itt. 

 E.- Whole plant becoming reddish or reddish- 

 l)rown ; pileus broadlx- umbonate: margin 

 more or less striate. S. 43; H. 49. 50; 

 Mc. 48; M. 62; A. 80: r. R. 35:159; J. 

 ^,]_ M,-q A. aiiicricana Peck 



B.'- I'lants noi changing color as above. 



(".' 1 'ileus with erect, pointed scales; amiulu- -omewhat 

 cobwebby. 

 1).' I'ileus brown. S. 34: 11. 55: .\1. ' >2 : J. -M. 12: 

 200, 201 ; .\. 81. 'f<2\ Mc. 40; r. 1\. 33:154- 

 /,. ociitesqtiamosa W'einm. /-. wf^entia Atk 

 T).- rileus white. J. M. 12:202../.. <jeimiiata Morg. 

 C.- Pileus and annuhiN not as above. 



n.' Pileus usually more than S cm. broad. 



!•"..' Lamellae and spores green. .'^. 31: II. 50. 

 51 : Mc. :^7: A. 80; .M. (.1 : J .M. 13 S. 



/.. iiior(/aiii I'eck 



