46 



The North American Cup-Fungi 



species; asci cylindric or clavate, usually 8-spored; spores ellip- 

 soid to fusoid, fusiform, or filiform, simple or septate, hyaline or 

 more rarely colored; paraphyses present and variable. 



Spores hyaline. 



Apothecia usually, elongated on one side. 

 Apothecia not elongated. 



Color yellow-olive or greenish. 



Opening with a stellate aperture. 

 Not opening as above. 



Bright-green, medium large, 5 mm.-l 



cm. broad. 

 Yellowish to olive, small, less than 5 

 mm. broad. 

 Spores large, 20 m or more long. 

 Spores small, 10 ^ or less long. 

 Color varied but never green. 



Apothecia medium large, 4-5 mm. or more 

 broad. 

 On over wintering buds; conidial stage, 



an Acarosporium. 

 On plant debris; conidial stage not as 

 above. 

 Spores simple. 

 Spores compound. 

 Apothecia small usually less than 4 mm.; 

 bright-colored, white, yellow or red. 

 Margin toothed. 

 Margin not toothed. 

 Spores simple. 



Apothecia stipitate or substipi- 



tate. 

 Apothecia entirely sessile. 

 Spores becoming septate. 

 Spores fusiform. 



Apothecia entirely sessile. 

 Seated on a subiculum. 

 Without definite subicu- 

 lum. 

 Spores 1-septate. 

 Spores 3- or more-sep- 

 tate. 

 Apothecia stipitate. 

 Spores filiform. 



Asci not strongly protruding. 

 Apothecia sessile. 

 Apothecia stipitate. 

 Asci strongly protruding. 

 Spores brown. 



15. MiDOTIS. 



16. PODOPHACIDIUM. 



17. Chlorocibori.\. 



18. Kriegeria. 



19. Chlorosplenium. 



20. Pycnopeziza. 



21. ClBORIELLA. 



22. Calycina. 



23. Cyathicula. 



24. Helotium. 



25. Orbilia. 



26. Trichobelonium. 



27. c.a.lloria. 



28. Belonium. 



29. Belonioscypha. 



30. gorgoniceps. 



31. pocillum. 



32. Apostemidium. 



33. Phaeohelotium. 



