464 



THE FUNGI WHICH CAUSE PLANT DISEASE 



Receptacle clathrate or latticed 



Sessile 6. Clathrus. 



Stalked 



Receptacle a simple net 



Stipe simple 7. Simblum. 



Borne on a series of columns which 

 are united basally into a hollow 



tube 8. Colus. 



Receptacle with the network covered 



with knot-like projections 9. Klachbrennera. 



Latemea Turpin (p. 463) 



upright, convergent 

 and fertile only on 



Receptacle sessile, of 

 columns, apically united 

 the inner surface. 



L. columnata (Bosc.) Ness, is recorded by 

 Cobb ^'' as one of the fungi of the root disease 

 of sugar cane in Hawaii. The species is rather 

 CDmmon in the Southern United States, South 

 America, the West Indies and Hawaii. 



Lycoperdales (p. 395) 



Mycelium arachnoid to rhizomorphic ; sporo- 

 phores from the first appearing as small balls 

 which enlarge to maturity, gleba internal at 

 maturity, becoming a powdery spore-mass; base 

 of the sporophore sterile ; peridium double or single, parenchyma- 

 tous, separating into flakes or breaking regularlj^; fertile hyphaj, 

 persistent in the spore mass as a capillitium which is usually at- 

 tached to the columella. 



A single family Lycoperdaceae with species which are usually 

 saprophytes. 



Fig. 333.— Later- 

 nea columnata. 

 After Lloyd. 



Key to Genera of Lycoperdacea 



Outer peridium fragile, more or less decidu- 

 ous, often warty, spiny or scaly 

 Capillitium of an even thickness, not 

 branched 



