92 The North American Cup-Fungi 



Paraphyses filiform, without lance-like tips. 



Apothecia large 1-2 cm.; spores 5-7 X 15-18 yu. 2. M. nicaraguensis. 

 Apothecia small 1-2 mm.; spores 2-3 X 5-8 ;u. 3. M. plicata. 

 Apothecia not blue, violet, or purple. 

 Apothecia olivaceous. 



Apotheica large, 1-3 cm. 4. M. versiformis. 



Apothecia small, not exceeding 5 mm. in diameter. 



Spores medium, 3 X 7-8 fi. 5. M. olivascens. 



Spores minute, 1 X 3-4 ju. 6. M. floridana. 



Apothecia yellow, reddish, or brownish. 



Apothecia externally bright-yellow; hymenium 



darker. 7. M. heteromera. 



Apothecia pale- to dark-brown. 



Occurring singly usually. 8. M. occidentalis. 



Occurring in dense cespitose clusters. 9. M. Westii. 



1. Midotis irregularis Cooke; Sacc. Syll. Fung. 11: 422. 1895. 



Peziza irregularis Schw. Trans. Am. Phil. Soc. II. 4: 171. 1832. 



Cordierites irregularis Cooke, Bull. Buffalo Acad. Sci. 3: 26. 1875. 



Peziza doratophora Ellis & Ev. Jour. IVIyc. 1: 90. 1885. 



Otidea doratophora Sacc. Syll. Fung. 8: 96. 1889. 



lonomidotis irregularis Durand, Proc. Am. Acad. Sci. 5Q: 9. 1923. 



Apothecia occurring singly, or more often in cespitose clusters 

 from a common stem-like base up to 2 cm. in length which 

 penetrates the substratum, at first closed then opening and 

 becoming much elongated on one side and irregularly lobed or 

 lacerated, reaching a length and width of 3 cm., the entire cluster 

 reaching a diameter of 5-7 cm., externally scurfy, dark chestnut- 

 brown; hymenium darker than the outside of the apothecium, 

 almost black; asci cylindric-clavate, the apex truncate-rounded, 

 reaching a length of 50 70 fx and a diameter of 4-5 jx, 8-spored; 

 spores 1 -seriate, or partially 2-seriate, hyaline, or subhyaline, 

 smooth, containing two or three oil-drops, 3-4 X 8-10 /x; pa- 

 raphyses with a violet tint, each terminated by a lanceolate, 

 1-3-septate head 3-4 X 18-30 m which project beyond the 

 hymenium and is easily detached. 



On rotten wood and branches lying on the ground. 



Type locality: Bethlehem, Pennsylvania. 



Distribution: New Hampshire to Oregon, Pennsylvania 

 and Ohio. 



Illustrations: Proc. Am. Acad. Sci. 59: pi. 1. 



A specimen in the herbarium from Ohio is labeled Diplocarpa 

 tinctoria Massee & Morgan (type). The writer could find no 



