370 THE MICROSCOPIST. 



9. Zygodesmus. Filaments creeping, branched, with 

 short rarnuli bearing echinate spores, the pedicles with a 

 lateral indentation looking like a joint. 



Order PHYSOMYCETES, or Mucoroidece (Moulds). 

 Mycelium (microscopic) filamentous, bearing stalked sacs 

 (peridiola) containing numerous minute sporules. 



Family I. ANTENNARIEI (doubtful). Mycelium radiate 

 or erect, bearing sessile globular peridioles, filled with 

 ovate spores, discharged by rupture of sac at apex. Form 

 flocculent or byssoid patches on leaves or bark, and appear 

 to be merely states of other genera. 



Family II. MUCORINI. Mycelium filamentous, vague, 

 giving off erect simple or branched filaments terminating 

 in vesicular cells (peridioles) full of minute spores ; often 

 with central column in the interior. Form flocks and 

 clouds on decaying matters- 



1. Phycomyces. Peridiole pear-shaped, separated from 

 apex of pedicle by an even joint ; opening by an umbili- 

 cus. Spores oblong, large. Filaments tubular, continu- 

 ous, shining. 



2. Hydrophora. Peridiole subglobose, membranous, de- 

 hiscent, at first crystalline, aqueous, then turbid, and at 

 length indurated; bolumella absent; spores simple, con- 

 globated. 



3. Mucor. Peridiole subglobose, separating like a cap 

 (an annular fragment attached), from the erect, simple 

 pedicle, or bursting irregularly; columella cylindric or 

 ovate, spores simple. 



4. Acrostalagmus (?). Peridioles globose, with a colu- 

 mella; at the points of doubly- verticillate branches from 

 an erect pedicle. 



5. JEgerita. Peridiole spherical, very fugacious ; spori- 

 dia scattered like meal over the grumous receptacle. 



