98 The North American Cup-Fungi 



17. CHLOROCIBORIA Seaver, Mycologia 28: 390. 1936. 

 Chlorosplenium DeNot. Conim. Critt. Ital. 1: 376. 1864. Not Fries 1849. 



Apothecia stipitate, or substipitate, often reaching a diameter 

 of 1 cm., or rarely as large as 2 cm., the stem usually about half 

 as long as the diameter of the apothecium, resembling Ciboria, 

 color green, or olivaceous, staining the substratum green; asci 

 usually 8-spored; spores irregularly ellipsoid to vermiform, 

 simple, hyaline; paraphyses slender, clavate. 



Type species, Elvela aeruginosa Oed. 



The reasons for the establishment of this genus are given in 

 detail in Mycologia (28: 390. 1936). This genus has some 

 characters in common with Midotis, one species, C. versiformis, 

 having been transferred to that genus. 



Occurring on rotten wood, staining the wood verdigris 



green. 1- C- aeruginosa. 



Occurring on spruce cones, not staining the substratum. 2. C. strobilitia. 



1. Chlorociboria aeruginosa (Oed.) Seaver, Mycologia 28: 391, 

 1936. 



Elvela aeruginosa Oed. Fl. Dan. 9: 7. 1770. 

 Peziza aeruginosa Pers. Obs. Myc. 1: 27. 1796. 

 ?Cantharellus viridis Schw. Trans. Am. Phil. Soc. II. 4: 153. 1832. 

 ?Peziza chlorascens Schw. Trans. Am. Phil. Soc. II. 4: 175. 1832. 

 Helotium aeruginosum Fries, Summa Veg. Scand. 355. 1849. 

 Chlorosplenium aeruginosum DeNot. Comm. Critt. Ital. 1: 376. 1864. 

 Peziza aeruginescens Nyi. Not. Fauna Fi. Fenn. 10: 42. 1869. 

 Chlorosplenium aeruginescens Karst. Myc. Fenn. 1: 103. 1871. 

 Chlorosplenium viride Morgan, Jour. Myc. 8: 185. 1902. 

 Chlorociboria aeruginescens Kanouse, Mycologia 39: 641. 1947. 



Apothecia gregarious, stipitate, or subsessile, at first cup- 

 shaped, becoming expanded and subdiscoid with the margin 

 slightly elevated, verdigris-green and producing a similar color 

 in the wood on which it grows, reaching a diameter of 5 mm. ; 

 hymenium plane or slightly concave, similar in color to the out- 

 side of the apothecium, or lighter and sometimes yellowish; 

 stem darker, scarcely exceeding in length one-half the diameter 

 of the apothecium and about 1 mm. thick; asci clavate, reaching 

 a length of 45-50 m and a diameter of 3-4 /x; spores 2-seriate, or 

 irregularly crowded, narrow ellipsoid, 2-2.5 X 5-7 n (rarely 

 10-12); paraphyses very slender, about 1.5 ^ in diameter, 

 scarcely enlarged above. 



On dead wood. 



