124 The North American Cup-Fungi 



outside of the apothecium, often nearly black; asci clavate, 

 reaching a length of 65-75 ^J. and a diameter of 9-10 n, 8-spored; 

 spores 2-seriate, elongated, narrowed toward the lower end, 

 rounded above and somewhat curved, 3.5-4 X 16-18 /x, contain- 

 ing several oil-drops; paraphyses simple, or once forked below 

 the middle, scarcely enlarged above, about 3 ju in diameter at 

 their apices. 



On fallen leaves of Betula sp. and others. 



Type locality: Chimney Trail, Great Smoky Mts. National 

 Park, Tennessee. 



Distribution: Tennessee and Wisconsin. 



Illustrations: Farlowia 1: 153,/. 9. 



13. Helotium naviculasporum Ellis, Bull. Torrey Club 5: 46. 

 1874. 



?Peziza caudata Karst. Fungi Fenn. 547. 1866. 



Helotium saprophyllum Cooke & Peck; Peck, Ann. Rep. N. Y. State Mus. 29: 



55. 1878. 

 Calycina naviculaspora Kuntze, Rev. Gen. PI. 3^: 448. 1898. 

 Calycina saprophylla Kuntze, Rev. Gen. PI. 3^: 449. 1898. 

 Helotium sparsum Boud. Hist. Class. Discom. Eu. 111. 1907. 



Apothecia scattered, sparse, minute, delicate, slender- 

 stipitate, hyaline-white when fresh, becoming opaque and more 

 or less yellowish, or ochraceous on drying, reaching a diameter 

 of .4 to 1.3 mm.; stem slender, delicate, smooth, similar in color 

 to the apothecium, scarcely 1 mm. long; hymenium plane, or 

 slightly convex, white to pale-yellow, or ochraceous; asci clavate, 

 reaching a length of 80-90 /x, or rarely 110 ju, and a diameter of 

 8-11 m; spores irregularly 2-seriate, slightly curved and attenu- 

 ated at the lower end, 4-5 X 16-20 m, granular within; paraphy- 

 ses simple, scarcely enlarged above, reaching a diameter of 2-3 n. 



On fallen leaves usually from the midribs or veins, more 

 rarely on petioles: Acer, Alnus, Carya, Fagus, and Tilia. 



Type locality: Newfield, New Jersey. 



Distribution: New York to New Jersey and Michigan; also 

 in Europe. 



Illustrations: Boud. Ic. Myc. pi. 495; Mycologia 34: 158, 

 /. 3; 166,/. 3; Farlowia 1 : 153,/. 8 (as Helotium caudatum (Karst.) 

 Vel.) 



ExsicCATi: Ellis, Fungi Nova-Caesar. 53; N. Am. Fungi 62. 



