ClBORIA 85 



subcylindric, usualh' 8-spored, rarely 4-spored; spores ellipsoid, 

 or siibellipsoid, simple, hyaline, smooth, or minutely roughened; 

 paraphyses, hyaline, or colored, filiform, slightly thickened above. 

 Type species, Peziza Caucus Rebentich. 



On mummified flowers. 



On overwintering flowers of Acer. 1. C. acerina. 

 On catkins of Salix, and Populus. 



Apothecia minute, 1 mm. in diameter, whitish. 2. C. amenti. 

 Apothecia medium, 2-8 mm. in diameter, brown. 



Spores 4-5 X 9-13 m- 3. C. amentacea. 



Spores 5-6 X 9-10 yu- 4. C. Caucus. 

 On fruits. 



On mulberry fruits, Morus. 5. C. carunculoides. 



On old acorns, Qiiercus. 6. C. psetidotuberosa. 



On mummified apples and other fruits. 7. C. aestivalis. 



On involucres of Casfanea. 8. C. americana. 



1. Ciboria acerina Whetzel & Buchw. Mycologia 28: 516. 1936. 



Apothecia stipitate, from one to several from the black 

 stromatized male (rarely the female) inflorescence of the host, 

 small, 1-4 mm. in diameter, funnel-shaped to shallow cup- 

 shaped, finally expanded and subdiscoid; stem variable in length, 

 1-10 mm. long, somewhat darker than the apothecium, slightly 

 pubescent when young; asci clavate, reaching a length of 75- 

 100 yL and a diameter of 7-9 /x, 4-spored; spores ellipsoid, slightly 

 flattened on one side, 1 -seriate, hyaline, smooth; paraphyses 

 unbranched, slender, gradually enlarged above. 



On overwintering male and female flowers of Acer rubrum 

 and on male flowers of Acer saccharinum , Myrica Gale, Salix dis- 

 color and Ostrya virginiana. 



Type locality: Cornell University Campus, Ithaca, New 

 York. 



Distribution: New York and New Jersey. 



Illustrations: Mycologia 28: 517,/. 7-12; 521,/. 13-19. 



2. Ciboria amenti (Batsch) Whetzel, Mycologia 37: 675. 1945. 



Peziza amenti Batsch, Elench. Fung. Cont. 1: 211. 1786. 

 Helotium amenti Fuckel, Symb. M\c. 313. 1870. 

 Phialea amenti Quel. Bull. Soc. Bot. Fr. 26: 234. 1879. 

 Hymenoscypha amenti Phill. Brit. Discom. 143. 1887. 



Apothecia scattered, stipitate, whitish, or grayish, reaching a 

 diameter of nearly 1 mm.; hymenium pallid, concave, or nearly 

 plane; stem slender, reaching a length of 5 mm., similar in color 



