IOWA DISCOMYCETES 47 



Spores brown 1 to 3-septate. 



Spores 1-septate K^eschia. 



Spores 3-septate Mycolecidea. 



Plants hysteropatelliform Hystekopatella. 



Spores muriform Blitrydixjm. 



10. Cenangiace^. 



Plants sessile or subsessile. 



Eeeeptacle when fresh, leathery, horny or waxy. 



Stroma entirely wanting CexangiuM. 



Stroma more or less well developed. 



Asci 8-spored Dermatea. 



Asci many-spored Tympanis. 



Eeeeptacle when fresh gelatinous. 

 Spores simple. 



Apothecium within watery, shrinking much 



when dry Sarcosoma. 



Apothecium within not watery. . . . Bulgaria. 

 Spores much elongated, many-septate. . . HoLWAYA. 



Plants stipitate, large, urn-shaped Urnula. 



11. Stictidace^. 

 Plants elongated; asci 8-spored; spores simple. . . Propolis. 



12. Hysteeiace^. 



Spores with transverse septa only. 



Spores colored, brown Hystekium. 



Spores hyaline. 



Spores 1-septate Glonium. 



Spores becoming 3-septate Gloxiella. 



Spores muriform (with both transverse and longitudi- 

 nal septa) Hysterographium. 



OEDER I. HELYELLINE.E. 



Receptacle vertical, stipitate, mitrate, pileate, or clavate; hy- 

 menium superior, exposed from the first; substance between 

 tleshy and waxy, rarely gelatinous. 



FAMILY 1. GEOGLOSSACE^. 



Receptacle fleshy, waxy, or gelatinous ; fructification separated 

 into a sterile stem and fertile receptacle ; hjonenium on the out- 

 side of the receptacle, always exposed; asci clavate, non-opercu- 

 late. 



