192 



ASCOMYCETKS. 



coats of the ovary, till gradually but completely it fills up the 

 whole cavity. Outside the ovary the mycelium forms an 



Fig. 84. — Ctaviceps purpurea. Brgot Sderotia or Ergot-graina in ears of Rye. 

 (T. Tubeuf phot.) 



irregular wrinkled white stroma or sphacelia, from the hollows 

 and folds of which little ovoid conidia are abjointed from short 



