SPHAEROPSIDIACEAE 



389 



(whitish, yellow, orange or reddish), never dusky; sub- 

 globose, rarely elongated or somewhat concave; conidia 

 various in form, hyaline. Nectrioideae. 



' . 



FIG. 19^Aseockyta pisi, figs, i and 2, pod and leaflet 

 of garden pea respectively attacked by the fungus, which 

 forms bleached dead patches bounded by a dark line ; 

 3, section of two conceptacles embedded in the substance 

 of the host : the conidia shown above are more highly 

 mag. Figs, i and 2, nearly nat. size; the remainder 

 mag. 



Perithecia more or less distinctly dimidiate, scutelliform 

 or shield-like, mouthless or dehiscing by more or less elon- 

 gated cracks or fissures, membranaceous or carbonaceous, 

 black, erumpent or superficial. Leptostromeae. 



Perithecia depressed, plane or circular, or elongated, 

 sometimes subglobose at first, but soon becoming widely 

 open or saucer-shaped, membranaceous or carbonaceous, 

 black ; erumpent or superficial, glabrous or hairy. 



Excipuleac. 



