EREMASCACEAE 



165 



spored genera of the Sacctiaromyeetaeeae, such as Nadsonia and Deharyomyces, 

 with heterogamous copulation, although in Hemispora itself sexuality has ap- 

 parently been lost. 



Key to Genera 



Asci formed by copulation at the tip of two coiled copulation branches. 



Eremascus. 

 Asci formed by heterogamous copulation of two straight copulation branches, or rarely 



parthenogenetic. Zymonema. 



Asci developed without traces of copulation. 



Spores usually 4-8 per ascus; ascus thin-walled. 



No sprout mycelium normally present, raquet mycelium present. 



Oleina. 

 Sprout mycelium present, no raquet mycelium. Octomyces. 



Spores usually 1-2 per ascus. 



Asci solitary, thick -walled; ascospores thin-walled, smooth. 



Bargellinia. 

 Asci in chains, thin-walled; ascospores echinulate. Hemispora. 



Fig. 3 4. — Oleina nodosa Tiegh. 1, racquet mycelium; 2, chlamydospores ; 3, intercalary asci with 

 ellipsoid spores; .}, Oleina lateralis with sessile lateral asci. (After Van Tieghem 1887.) 



ZYMONEMA 



Zymonema Beurmann & Gougerot, Tribune Med. 42: 503, 1909. 



Blast omycoides Castellani, Amer. Jour. Trop. Med. 8: 381, 1928; Proc. R. 

 Soc. Med. 21: 451, 1928-1929; Amer. Med. 23: 290, 291, 1928, pro parte. 



Gilchristia Redaelli & Ciferri, Jour. Trop. Med. Hyg. 37: 280-282, 1984. 



Endomyces Auct. non Reess. 



The type species is here considered as Blastomyces dermatitidis Gilchrist & 

 Stokes [for further discussion see p. 199]. 



Castellani proposed his new genus. Blast omycoides, without designating a 

 type, placing Coccidioides immitis and Blastomyces dermatitidis in the genus 

 and subsequently added several other equally discordant elements. Since Coc- 



