

KEY TO GASTEROMYCETALES 5 



Peridium campanulate, or cylindrical, of three"! 



layers, with an epiphragm. Peridiola umbilicately \ Cyathus. 



attached to the funiculus 



SCLERODERMATACE AE . 



Subterranean. Peridium soft, fleshy, with branched"! 



mycelial strands springing from every part of the!- Melanogaster. 



exterior, not sharply separated from the gleba 



Superficial. Peridium leathery, or corky, of one or"! 



two layers, sharply separated from the pulverulent - Scleroderma. 



gleba J 



Superficial. Peridium membranaceous, distinctly"! . ,., 



separated from the gleba, which at maturity consists / ,p. * US ' 



CALOSTOMATACEAE. 



Endoperidium inserted at the base of the exoperi-j , 

 dium, the latter splitting open in a star-like manner/ 



TULOSTOMATACEAE. 



A. Capillitium smooth. 



Endoperidium dehiscing by an apical aperture Tulostoma. 

 Endoperidium dehiscing by the gradual falling) ^ , . 

 away of the peridial walls from the base upwards/ 



B. Capillitium with ring-like, or spiral markings Battarrea. 



GrLISCHRODERMATACEAE. 



Same characters as the family Glischroderma. 



SPHAEROBOLACEAE. 

 Same characters as the family Sphaerobolus. 



AGARICALES. 



I. Hymenium inseparable from the j AGA R ICINEAE . 

 pileus, spread over the surface of gillsj 



II. Hymenium inseparable from the 



pileus, spread over the surface of 



CANTH AKELLINEAE. 



narrow, obtuse gills, or folds, or 

 quite smooth 



III. Hymenium soft, separable from the! 



pileus, lining the inside of pores, orj- BOLETINEAE. 

 pore-like gills 



