e 



132 THE CHICAGO ACADEMY OF SCIENCES 



Extensively effused on the under side of fallen decaying 

 branches. Riverside. October. Color paler than that of P 

 radiata. 



ODONTIA. 



Plants resupinate; subiculum of interwoven fibers, bearing- 

 crested warts or spines. 



Border of subiculum fimbriate 0. fimbriata. 



Border of subiculum not fimbriate 0. tenuis. 



Odontia fimbriata Pers. 



Effused, membranaceous, seceding, pallid, traversed by root- 

 like fibers; the border fibrillose-fimbriate. 



Warts minute, in the form of granules, multifid at the apex. 



River Forest, at the base of a dead crab or thorn tree. June. 

 Harper. On dead branch of Ostrya, Glencoe. September. 



Odontia tenuis Pk. 



Effused, very thin, tender, dry, pallid, the margin not clearly 

 fimbriate; verrucae minute, subglobose or oblong, scattered or 



crowded, sometimes entire; mycelium sometimes collected into 

 dingy yellowish branching slender threads. 



On decayed wood. Near Chicago. Harper. 



CRATERELLUS. 



Plants fleshy or membranaceous, smoothish, terrestrial or 

 rarely epixylous, cup-shaped or umbrella-shaped, stipitate; 

 hymenium ribbed or sometimes rugulose. Allied to the Canth- 

 arelli. 



Craterellus dubius Pk. 



Pileus thin, subinfundibuliform or subtubiform, subfibrillose, 

 dark brown or lurid brown, pervious, the margin generally wavy 

 and lobed. 



Hymenium dark cinereous and rugosewhen moist, nearly even 

 and paler when dry. 



Stem short, hollow, colored like the hymenium. 



Spores broadly ellipsoid or subglobose, ii to 7.5 x 5 to 6 /*. 

 Pileus 2.5 to 5 cm. broad; plant 2.5 to 7.5 cm. high, stem about 

 4 mm. thick. 



In woods. Frequent. In July and August, 1902, it was very 

 abundant in the woods near Glencoe. Pileus 2.5 to 6 cm. broad 

 at the mouth of the tube. 



THELEPHORA. 



Plants leathery, erect and stipitate and lateral, or effused- 

 refiexed, or resupinate; hymenium smooth, slightly ribbed or 

 warty; spores sphaeroid, colored, minutely warted or echinulate. 



1. Erect, pileus entire or divided into branches - 



1. Resupinate-incrusting, or effused-reflexed 4 



2. Pileus white or whitish ^ 



