EN TO MOPH THORALES 



293 



conidiophore by a transverse septum. This conidium is clearly 

 the homologue of the sporangium of the Mucorales, and the 



Fig. 107.' — Empusa spp. (a-d) Primary conidia of four different species showing 

 variation in shape, (e, /) Primary "conidium" after period in water showing 

 spore floating free within sporangial wall; the conidium, therefore, a monosporic 

 sporangium, (g) Primary conidium at left and secondary at right showing 

 different form in same species, (h) Layer of unbranched conidiophores (k) 

 One of these ready to discharge the conidium. (m) Branched conidiophores of 

 another species, (n, o) Primary conidia germinating and forming secondary 

 conidia. (p) Rhizoids of two different species, serving to attach host to sub- 

 stratum, (r) Germination of a hyphal body, (s) Primary conidia germinating 

 by capillary tubes to form secondary conidia. (After Thaxtcr 1888.) 



septum is essentially the same as the columella in that group. In 

 fact as emphasized by Thaxter (1888: 143, yig. 321) the cell may 



