IV] 



PEZIZALES 



i i 



In several other members of the Pezizaceae, for example in Peziza 

 vesiculosa I Fraser and Welsford) and Peziza tectoria, development appa- 

 rently takes place, as in Humaria rutilans, without the formation of sexual 

 organs. 



In Otidea anrantia (Fraser and Welsford), a large cell, no doubt part of 

 an archicarp, has been recorded in the early stages, and in Peziza thele- 

 boloides, Humaria Roumegueri, and //. carbonigena, there is a well-marked 

 oogonial region of one or more cells. 



-' ■'.''-. '.-'•<../"<, 





uv&f 



Fig. 7:. Humaria rutilans (Fr.) Sacc; a. telophase of second division in ascus, 

 3370; b. prophase of third division in ascus, showing sixteen curved chromo- 

 somes, < 2N0S. 





Fig. ',.'•■ Humaria rutilans (Fr.) Sacc; a. meta- 

 phase of third division in ascus,  :oSo;//. polar 

 view of telophase <>f third division in ascu>, 

 ing eight curved chromosomes,  3 ioo. 



Fig. 74- Humaria rutilam . 



ol third division in ascus; 

 alter Guilliermond. 



