MUSHROOMS AND TOADSTOOLS 



251 



Receptacle latticed or irregularly branched, sessile or stalked; 

 gleba inclosed within the receptacle. Family i. Clathrace^. 



Receptacle tubular or cyhndric, capitate, with the gleba external. 

 Family 2. Piiallace.e. 



Fig. ioi. — A, B, Dictyophora phalloidea. A, Longitudinal section of a fruit-body 

 fully stretched beyond volva (natural size); B, longitudinal section of a young fruit- 

 body (twice enlarged); G, volva mucilage; a, gleba; H, cap; /, indusium; Sw, stipe; 

 Pi, primordial layer between cap and indusium'; Pi, primordial layer between in- 

 dusium and stipe; S, S, tissue of stem; B, tissue of base of fruit-body. {After Ed. 

 Fischer in Die naliirlichen PJlanzejifamilien I. lA**, p. 295.) 



The first family, according to "Die natiirlichen Pflanzenfamilien, " 

 comprises eleven genera of which Clathrtis (Fig. 98), Sinihlum, An- 

 thurus are North American. Three species of Clathrus have been col- 

 lected in this country. Simhlum rubescens was collected originally on 



