54 



Mycologia 



New York, in May, 1916. Similar specimens were sent by Dr. 

 Pennington in May, 191 5, and his letter indicates that the species 

 had been observed the preceding year. The collection of the same 

 species in the same general region three times either in May or 

 June is an interesting coincidence and probably indicates about 

 the time the species should be expected in that latitude. 



Discina venosa (Pers.) Sacc. Syll. Fung. 8: 104. 1889 



Peziza venosa Pers. Syn. Fung. 638. 1801. (Excl. syn.) 

 Peziza reticulata Grev. Scot. Crypt. Fl. 156. 1825. 

 Plicaria reticulata Fuckel, Symb. Myc. 328. 1869. 

 Aleuria venosa Gill. Champ. Fr. Discom. 37. 1879. 

 Acetabula venosa Lamb. Fl. Myc. Belg. 2: 574. 1880. 

 Discina reticulata Sacc. Syll. Fung. 8 : 100. 1889. 

 Disciotis venosa Boud. Hist. CI. Discom. Eu. 42. 1907. 



Apothecia solitary or gregarious, substipitate with the base 

 lacunose, at first shallow cup-shaped, soon becoming depressed 

 and finally resting on the substratum with the extreme margin 

 slightly elevated, when young entire, often irregularly radially 

 splitting at maturity, externally whitish or brownish white, and 

 slightly pruinose or scurfy, reaching a diameter of 20 cm. ; hymen- 

 ium reddish-brown, dried specimens often dusted over with the 

 spores which are rust-colored in mass, and with the hymenium 

 irregularly convolute, convolutions either radial or giving a re- 

 ticulate character; asci cylindric or subclavate, reaching a diam- 

 eter of 25 fi ; spores i-seriate or slightly crowded, ellipsoid, smooth, 

 pale yellowish, 22-30 X 12-17 /x; paraphyses clinging together in 

 masses, enlarged above reaching a diameter of 8/x, yellowish- 

 brown. 



On the ground in deciduous woods. 

 Type locality : Europe. 



Distribution : New York to Ohio ; also in Europe. 



Illustrations: Boud. Ic. Myc. pi. 254; Gill. Champ. Fr. 

 Discom. pi. 34; Grev. Scot. Crypt. Fl. pi. 156; Rab. Krypt. Fl. 

 i 3 : 922, /. 1-3. 



Exsiccati : Ellis & Ev. N. Am. Fungi 2621. 



New York Botanical Garden. 



