Paxixa 



201 



Not Macropodia R. Brown, 

 Not Fiickelina Sacc, 1875. 



34. PAXINA Kiintze, Rev. Gen. PI. 2: 864. 1891. 



Acetabnla Fuckel, Symb. A-Iyc. 330. 1S69. Not Acetabulum Boehmer- 



Ludwig, 1760. 

 Macropodia Fuckel, Symb. Myc. 331. 1869. 



1812. 

 Fuckelina Kuntze, Rev. Gen. Pi. 2: 852. 1891 

 Phh'boscyphus Clements, Bull. Torrey Club 30: 93. 1903. 

 Cyathipodia Boud. Hist. Class. Discom. Eu. 39. 1907. 



Apothecia stipitate or substipitate, cup-shaped, usually regular 

 or occasionally slightly contorted, externally hairy or tomentose, 

 the substance tough and approaching leathery; stem slender or, 

 more often stout, long or very short and immersed in the ground 

 when the apothecia appear sessile, even or irregularly lacunose; 

 asci cylindric to clavate, 8-spored; spores ellipsoid to fusiform, 

 smooth or rough, hyaline or at most slightly yellowish; pa- 

 raphyses rather stout. 



Type species, Peziza Acetahuhim L. 



Spores remaining permanently smooth. 



Stem thick and strongly lacunose or corrugated. 



Corrugations extending up the sides of the 



apothecium nearly to the margin. 

 Corrugations extending only to the base of the 

 apothecium. 

 Stem long, reaching a length of 4-5 cm. 

 Stem short, not exceeding 2-3 cm. in 

 length. 

 Stem flattened. 



Stem rounded or angular, not flattened. 

 Stem and outside of the apothecium 

 nearly white; stem short, rarely 

 reaching a diameter of 1 cm. 

 Stem and outside of the apothecium 

 cinereous to brown; stem reaching 

 a length of 2-3 cm. 

 Stem and outside of the apothecium 

 olivaceous; stem reaching a length 

 of 2-3 cm. 

 Stem slender, even or only slightly corrugated. 



Apothecia and stems cinereous to brown; hairs 

 hyaline. 

 Stems even, at least usually so. 

 Reaching a length of 3-4 cm. 

 Reaching a length of scarcely 1 cm. 

 Stems slightly corrugated. 

 Apothecia and stems black or blackish. 

 Spores 10-12 X 18-20 m- 

 Spores 15 X 30-35 ix. 



1. P. Acetabulum. 



2. P. macro pus. 



3. P. platypodia. 



4. P. leucomelas. 



5. P. sulcata. 



6. P. Barlae. 



