462 THE FUNGI WHICH CAUSE PLANT DISEASE ' 



Phallales (p. 395) 



Mycelium rhizomorphic; sporophore with a fertile portion, the 

 gleba, which contains a series of labyrinthine spore chambers, 

 these lined by a hymenium of closely approximated basidia, the 

 supporting tissue parenchymatous, spongy and elastic in texture, 

 forming a receptacle which varies in size and form in the different 

 genera. Except in Rhizogaster the young sporophore is volvate, 

 and at the bursting of the volva immediately assumes its mature 

 size and form. 



An order of less than fifty species of interesting, yet from their 

 foul odor most disagreeable fungi. At present they are regarded 

 as mainly saprophytes. 



Key to Families of Phallales 



Receptacle stipitate, tubular or cylin- 

 dric, capitate, with the gleba ex- 

 ternal 1. Phallaceae, p. 462. 



Receptacle latticed or irregularly 

 branched, sessile or stalked; gleba en- 

 closed by the receptacle 2. Clathracese, p. 463. 



Phallaceae 



Key to Genera of Phallaceae 



Gleba borne directly on the upper portion of 

 the stem; no special pileus 



Gleba smooth, even 1. Mutinus. 



Gleba papillate or uneven 2. Jansia. 



Gleba covered by a rudimentary network 3. Floccomutinas. 

 Gleba borne on the outer surface of a special 

 pileus 

 Pileus even, rugose, or reticulate 



Veil poorly developed or none 4. Phallus, p. 463. 



Veil well developed 

 Surface of the pileus regularly reticu- 

 late 5. Dictyophora, p. 463. 



Siuf ace of the pileus irregularly folded 



and convoluted 6. Clautriavia. 



Pileus lamellate 7. Itajahya. 



