118 The North American Cup-Fungi 



Type locality: Forestburgh, New York. 

 Distribution: New York to Quebec and Oregon. Probably 

 common. 



Illustrations: Mycologia 34: 158,/. 2; 166, f. 9; Farlowia 1: 



153./. 7. 



This species seems to be distinct in its very long, slender 

 spores. A part of the original collection in the herbarium of The 

 New York Botanical Garden has been examined. 



2. Helotium Dearnessii (Ellis & Ev.) White, Mycologia 34: 167. 



1942. 



Phialea Dearnessii Ellis & Ev. Proc. Acad. Sci. Phila. 1893: 146. 1893. 

 Hymeyioscyphus Dearnessii Kuntze, Rev. Gen. PI. 3^: 485. 1898. 



Apothecia scattered, stipitatc, nearly sulphur-yellow, .7 mm. 

 in diameter, at first subolivaceous, becoming yellow, the margin 

 subfimbriate; stem short, stout, less than the diameter of the 

 apothecium; asci cylindric-clavate, reaching a length of 100- 

 108 m and a diameter of 10-13 m, 8-spored; spores 2-seriate, 

 fusoid to clavate, slightly curved, with two large oil-drops, 

 4-4.5 X 30 35 /x, gradually attenuated below; paraphyses fili- 

 form, scarcely enlarged above. 



On dead stems of Steironema ciliatum. 



Type locality: London, Ontario, Canada. 



Distribution: Known only from the type locality. 



Illu.strations: Farlowia 1: 615,/. 31-34. 



Exsiccati: Ellis & Ev. N. Am. Fungi 2624 (as Peziza Dear- 

 nessii) . 



3. Helotium serotinum (Pers.) Rehm in Rab. Krypt.-Fl. V: 781. 

 1893. 



Peziza serotina Pers. Syn. Fung. 661. 1801. 

 Hymenoscypha serotina Phill. Brit. Discom. 125. 1887. 



Apothecia gregarious, stipitate, at first club-shaped and 

 closed, finally opening and becoming cup-shaped, then plane or 

 nearly so, .25-.5 mm. in diameter, bright-yellow; stem 2-10 mm. 

 long, .2-. 5 mm. thick; asci clavate, reaching a length of 100-150 n 

 and a diameter of 10-12 n, 8-spored; spores clavate, straight, or 

 slightly curved, sharp-pointed, 4 X 22-24 fi (Rehm states 30-36 n 

 long and occasionally 1-septate); paraphyses filiform, 2 ^ in 

 diameter. 



On fallen leaves and branches of different kinds. 



