262 The North American Cup-Fungi 



spores long-ellipsoid, or subclavate, 1-2 X 5-8 n; paraphyses 

 filiform, 3 /x in diameter. 



On dead stems of ferns, Aspidium and Adiantnm and unde- 

 termined species. 



Type locality: Europe. 



Distribution: Reported from Michigan and New Jersey; 

 also in Europe. 



32. Lachnella Dicranopteridis (Seaver & Whetzel) Seaver, comb, 

 nov. 



Dasyscypha Dicranopteridis Seaver & Whetzel, Sci. Sur. Porto Rico. 8: 74. 

 1926. 



Apothecia scattered, shortly stipitate, or subsessile, exter- 

 nally reddish, densely clothed with white hairs, reaching a diam- 

 eter of .5 mm.; hairs cylindric, roughened on the outside; asci 

 clavate, 8-spored, reaching a length of 40-50 m and a diameter of 

 5 /i, tapering into a rather long, stem-like base; spores fusiform, 

 the ends acute and almost bristle-like, not distinctly septate but 

 often with suggestions of septa, 2 X 8-10 /x; paraphyses not 

 indicated. 



On fronds of Dicranopteris pectinata. 



Type locality: Porto Rico. 



Distribution: Known only from the type locality. 



33. Lachnella Rhytismatis Phill. Grevillea 8: 101. 1880. 

 Dasyscypha Rhytismatis Sacc. Syll. Fung. 8: 453. 1889. 



Apothecia minute, gregarious, white, at first globose and 

 closed, then expanding, clothed with white hairs; hymenium 

 white; hairs short, hyaline with transmitted light, bearing at 

 their tips globular or crystalline heads; stem rather long, hairy 

 to the base; asci cylindric, 8-spored; spores fusoid, 1 X 3-5 fx; 

 paraphyses as broad as the asci but longer, lanceolate. 



On Rhytisma acerinum, on leaves of Acer. 



Type locality: Europe. 



Distribution: Maryland; also in Europe. 



Exsiccati: Ellis & Ev. Fungi Columb. 1819. 



The original spelling of the specific name was "Rhytismae'' but 

 was corrected by Saccardo as indicated above. 



34. Lachnella Acanthonitschkeae (Cash & Davidson) Seaver, 

 comb. nov. 



Dasyscypha Acanthonitschkeae Cash & Davidson, Mycologia 32: 730. 1940. 



