564 CLASS BASIDIOMYCETEAE 



Family Clathraceae. 



Receptacle lattice-like or of meridionally curved branches united at their tips. 

 Without stipe, not strongly narrowed below. 



Branches of the lattice-like receptacle heavy and thick. Europe, United 



States, Ceylon. Clathrus 



Branches of the lattice-like receptacle slender, meshes large. Tropics of 



Australia and Asia. lleodictyon 



Meridionally curved branches heavy. Tropical regions of Old and New 



World. Colonnaria 



Meridionally curved branches slender. West Indies. Laternea 



With stipe or strongly narrowed below. 



No true stipe, lower meshes like the upper ones or slightly elongated. 



Tropics of Old and New Worlds. ClathreUa 



Stipe short. Lower series of meshes much elongated, upper ones isodia- 



metric. Mediterranean region. Colus 



Stipe tall, stout. Lattice-like receptacle with isodiametric meshes. Tem- 

 perate and tropical regions of Old and New Worlds. 



Sirnblum 

 Stipe distinct. Several arms bowed out and united at the tip. Warmer 

 regions of Old and New Worlds. Pseudocolus 



Receptacle stipitate, of arms not united at their tips at maturity. 



Arms spreading horizontally from the margin of a disk-like widening of the 

 upper end of the stipe. Tropical regions of Old and New Worlds. 



Aseroe 

 Arms vertically parallel, spreading at their tips. 



Arms surrounded by gleba laterally, and wholly or partially dorsally. 



Australia, Asia, America, Europe. Lysurus 



Gleba only on inner side of arms. Africa, Australia, Europe. 



Antkurus 

 Arms projecting in all directions, knobby. Africa. Kalchbrennera 



Receptacle stipitate and surrounding the gleba, splitting stellately into five 



lobes. New Zealand. Claustula 



The tropical genera Blumenavia and Mycopharus closely resemble Colonnaria 

 and Pseudocolus, respectively. 

 Family Phallaceae. 



Receptacle closely clothing the upper part of the stipe, not on a campanulate 

 pileus. 

 No pseudoparenchymatous ridges or reticulations on the gleba at maturity. 

 Gleba covering the tip as well as the upper portion of the stipe. South 



America. Xylophagus 



Gleba forming a belt some distance below apex of stipe. South America. 



Staheliomyces 

 Gleba closely investing the upper portion of the stipe but not overrunning 

 the tip. Old and New Worlds. Mutinus 



Like Mutinus, but with pseudoparencliymatous projections or ridges from 



the gleba. East Indies and Australasia. Jansia 



Like Mutinus, gleba invested with a loose net. Africa. Floccomutinus 



Receptacle forming a campanulate pileus, attached centrally at the upper end 

 of the stout stipe. 

 Indusium growing from between pileus and stipe. 



Pileus perforated like lattice-work. Volva mostly spiny. East Indies. 



Echinophallus 



