36 NATURAL HISTORY BULLETIN. 



III. Sporocarp globose, long stipitate ; peridium persistent, at maturity 

 dry, opening by a definite aperture; gleba and capillitium also dry per- 

 sistent; sterigmata lateral. Tulostome.e. 



IV. Sporocarp traversed vertically by the well developed columella 

 which is an upward growth or continuation of the stipe; gleba in our 

 genus septate. . ........ Podaxise.e. 



V. Sporocarp terrestrial, of various forms; peridium with a more or less 

 thickened base; breaking up irregularly, or falling away, or opening 

 regularly; at maturity rilled with a dusty mass of mingled threads and 

 spores Lycoperdixe.e. 



VI. Sporocarp cup-shaped or cyathiform, open at the top, containing one 

 or more persistent hy menial chambers, the peridiola. . Nidularie.e. 



VII. Sporocarp at first ovate, consisting of the stipe, gleba and peridium; 

 peridium complex, of several distinct layers, at lengtn irregularly rup- 

 tured in such way as to form a volva out of which rises a peculiar stipe 

 or receptacle displaying the mucilaginous gleba. . . Phalloide.e. 



I. HYMENOGASTREiE. 



(This family is not represented in our collection.) 



II. SCLERODERMEiE. 



Sporocarp depressed globose, with a thick, leathery, perid- 

 ium breaking irregularly; the gleba cellular; at maturity the 

 walls of the hymenial chambers drying up but persisting as 

 such; capillitium lacking or scant. The only genus is 



I. SCLERODERMA. 



Peridium dry, leathery or corky, simple, gleba at first elastic 

 fleshy, white, at length becoming dry and dark colored. The 

 hymenium filling up the cells of the gleba as with hyphal 

 tissue, at length dissolving so that only the spores and indis- 

 tinguishable remnants remain of a capillitum which originally 

 consisted of single cells or rows of cells derived from the 

 hyphas of the trama. The trama when dry perists as a frag- 

 mentary, easily perishing network. 



Scleroderma vulgare Horncman, Flora Dan. 



Sporocarp depressed globose, of various forms and sizes, 

 sessile or umbilicate below, tough, hard, corky or woody; 



