Sphaerangium 309 



light-brown, reaching a diameter of 2 mm.; hymenium concave, 

 darker than the outside of the apothecium; asci clavate, reaching 

 a length of 200-225 n and a diameter of 25 n, 4-spored ; spores 

 1 -seriate, very large and broad-ellipsoid to subglobose, 15-20 X 

 20-25 ix, becoming brown and very granular, often with several 

 oil-drops; paraphyses slender, hyaline below, brown above, the 

 ends adhering in an epithecium. 



On dead limbs of Quercus coccinea. 



Type locality: Newfield, New Jersey. 



Distribution: Known only from the type locality. 



ExsiccATi: Ellis, N. Am. Fungi 70. 



2. Sphaerangium magnisporum (Cash & Stevenson) Seaver, 

 comb. nov. 



Phaeangium magnisporum Cash & Stevenson, Jour. Wash. Acad. Sci. 30: 304. 



1940. 



Apothecia erumpent, occurring singly, or in groups of two or 

 three each, closely surrounded by fragments of the ruptured bark, 

 reaching a diameter of 1-1.5 mm., fleshy, subturbinate, or ob- 

 conic, black, often contorted from mutual pressure, often falling 

 out leaving cavities; hymenium brownish-black, rough; asci 

 broad-clavate, abruptly narrowed at the base, reaching a length 

 of 175-200 M, and a diameter of 25-30 m, 4-spored; spores 1- 

 seriate, broad-ellipsoid, with one large oil-drop when young, 

 surrounded by a thick, hyaline, gelatinous envelope, 19-22 X 

 40-50 M (exclusive of the envelope) ; paraphyses numerous, 

 branched and interwoven at their tips. 



On branches of Betiila nigra. 



Type locality: Agricultural College Campus, Athens, 



Georgia. 



X Distribution: Known only from the type locality. 

 Illustrations: Jour. Wash. Acad. Sci. 30: 303./. 4. 



3. Sphaerangium Tiliae Seaver, sp. nov. (Plate 133.) 

 Apothecia erumpent through the outer bark which breaks 



irregularly, at first closed and clothed externally with white, 

 furfuraceous granules, finally opening irregularly, often stellately, 

 expanding and exposing the black hymenium; hymenium plane 

 or nearly so, with a rough appearance apparently due to the 

 exuded spores, reaching a diameter of 1-2 mm.; asci subcylindric, 

 reaching a length of 240 /x. and a diameter of about 25 /x, with no 



