PEZIZALES 6 1 



7. Ascocarps naked. 8. 

 Ascocarps hairy, parasitic on living leaves. JOHANSONIA. 



8. Spores hyaline at maturity. SCUTULA. 

 Spores at first hyaline, then brown or brownish. 9. 



9. Ascocarps superficial or rarely slightly immersed (saprophytic). lo. 

 Ascocarps at first immersed, then erumpent (parasitic). ABROTHALLUS. 



10. Disc round. KARSCHIA. 

 Disc elongate or irregular. MELASPILEA. 

 Disc linear or sometimes stellately branched. HYSTEROPATELLA. 



11. Spores not breaking up into single cells in the asci. 12. 

 Spores filiform, many-celled, breaking up into single cells in the asci. 



BACTROSPORA. 



12. Spores ellipsoid, mostly 4- (rarely 6-8-) celled, hyaline, then brown 



(mostly parasitic). LECIOGRAPHA. 



Spores fusiform, 4- or more celled, hyaline (saprophytic). PATELLARIA. 

 Spores filiform, elongate. 13- 



13. Ascocarps sessile ; spores bacillate, 4-6-celled. PRAGMOPORA. 

 Ascocarps sessile ; spores filiform, many-celled. SCUTULARIA. 

 Ascocarps top-shaped, stalked. LAHMIA. 



14. Spores roundish, i-celled. BIATORELLA. 

 Spores elongate, 4-celled. BAGGEA. 



The Patellariaceae are mostly inconspicuous saprophytic plants; 

 the American species have never been systematically studied. 



Family 8. Cenangiaceae. 



1. Ascocarps coriaceous, corneous or waxy when fresh. 



Ascocarps gelatinous when fresh. 8. 



2. Ascocarps at first immersed, without a stroma. 3- 

 Ascocarps springing from a more or less developed stroma. 7. 



3. Spores one-celled. 4. 

 Spores elongate, 2-4-celled. 5- 

 Spores filiform, many-celled. GODRONIA. 



4. Ascocarps externally bright colored, downy. VELUTARIA. 

 Ascocarps externally dark, smooth ; spores hyaline. CENANGIUM. 

 Ascocarps externally dark, downy ; spores colored. SCHWEINITZIA. 



5. Spores hyaline, always 2-celled ; ascocarps smooth. CENANGELLA. 

 Spores hyaline, 2-4-celled ; ascocarps downy externally. CRUMENULA. 

 Spores at length brown or blackish. 6. 



