SPORES AXD THALLIDIA. 



as the ease may be. Aspergillus niger (see fig. 193* and 193^), a Mould living 

 chiefly on the juices of fresh or preserved fruits, develops slender upright hypha? 

 with swollen ends, which bear numbers of short peg-like processes — the sterig- 

 mata — fi-om which moniliform series of from five to eight spores are abjointed in 



l^c. — Bs=idi:ziv.-e:es- 



^«^pfc:Vi ' (3ara:e basidia vlUi filamentous sieri^msra. trom uie e-is :i w-iich fp'nericsl s|»oresai« abjointed (mtm tbe 

 truir-ii'ar:; ci JnJ'i^^rj j^^jJ-cijias). * Sj/eUatmi ur^yri^jrvrnt. * F.'^y&onjs r'ir^nmu. \ -. s. *. =. «, s. * as!:ur:il sire; 



rapid succession. These spores at first hang loosely together, and are arranged 

 like striui::? of pearls, but eoHeetively these rows of spores form a sphejical head. 

 A si.ock of any kind, especially the disturbance occasioned by currents of air, wiU 

 cause a severance of the spores, and the entire sphere consequently falls to pieces. 



