P.orizabensis 
P. eugrammus 
P. jalapensis 
P. cantharelloides 
Pileus 4-8 mm 
Gills white, pileus black, campanulate 
Gills and pileus blackish brown, 
flabelliform P, subbarbatus 
Pileus stipitate or dimidiate, not resupinate when young 
Pileus membranous, stipe tubular Marasmiellus 
Pileus 2-^mm M. inconspicuus, 7298 
Pileus 10mm or more in diameter 
Pileus light brown, glabrous M. juniper inus 
Pileus purple, tomentose M. purpureus 
Pileus pale to light ochraceous salmon, velvety M. 4658 
Pileus fleshy toughk to coriaceous, stipe solid when present 
Panel lus 
Gills rather distant and broad 
Gills ver y crowded and narrow 
Pileus avellaneous 
Pileus white or yellowish 
Gills dichotomous, edges obtuse 
Gills not dichotomous, edges thin 
Stipe tomentose, distinct 
Stipe glabrous, usually only a tubercle 
Stipe centrSL to slightly excentric, pileus regular 
Stipe tubular, slender with cartilaginous cortex 
Pileus somewhat gelified, stipe horny 
Gills few, distant 
Terrestrial; gills decurrent 
Growing on wood 
Pileus white or pale, not darkening ondfying 
Pileus less than 1cm; gills decurrent 
Pileus l-2cm.; gills adnate 
Pileus some shade of avellaneous or pale bay 
or becoming so on drying 
Pileus 2cm. or less 
Pileus 5-6 cm. 
Pileus deeply umbilicate to infundibuliform H. subspodoides 72 $6 
Pileus plane or slightly depressed 
P. 
P. 
subcantharelloides 
flabellatus 
Heliomyces 
H. terrestris 
H. 
H. 
translucens 
striatus 
H. subavel laneous 
Pileus plae or tinged yellow when dry 
Pileus later icious when dry 
Gills numerous, crowded, growing on wood 
Hymenophore solitary 
Hymenophores cespitose 
Pileus umbilicate, gills interveined 
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Pileus umbonate, gills not interveined 
Pileus membranous to somewhat fleshy 
Pileus glabrous or nearly so 
Stipe compound or branched 
Pileus 6mm 
Pileus 2mm in diameter 
Surface white, bay on umbo 
Surface bay throughout 
Stipe simple, unbranched 
H. subspodoides 
H. hondurensis 
H. crenulatus 
H. Peckii 
H. rubritinctus 
H. angustifolius 
H. multifolius 
Mxxfaatxxx 
H. foetens 
Polymarasmius 
P. multiceps 
P. submulticeps 
P. sarmentosus 
Marasmius 
