54 Mycologia 



maturity consisting of a bright lemon-yellow stroma with a pale, 

 whitish margin, color in dried specimens fairly constant, rarely 

 slightly faded ; perithecia entirely immersed and appearing as 

 minute glands, slightly darker than the stroma; asci cylindrical, 

 becoming i6-spored by the separation of each original spore into 

 2 subglobose cells, 80-1 lo mic. in length; spores about 4X5 

 mic, subglobose or commonly subcubical from mutual pressure, 

 granular within. 



On bark of various kinds of trees and shrubs, Acer, Alnus, 

 Salix, Tilia, etc., often on Exidia glandiilosa. 



Type locality: Pennsylvania. 



Distribution: Connecticut to N. Dakota, Alabama and S. 

 Carolina. 



ExsiccATi : Ravenel, Fungi Am. Exsicc. 641, Fungi Car. 

 Exsicc. 52; Wilson & Seaver, Ascom. & Lower Fungi, ^y. 

 Other specimens examined : Alabama, Earle, Underwood; Can- 

 ada, Macoun; Connecticut, Thaxter; Delaware (no name) ; 

 Florida, Calkins; Iowa, Holway ; Louisiana, Seymour; N. Dakota, 

 Seaver; N. Jersey, Ellis; N. York, Seaver; Ohio, Morgan, Lloyd; 

 Pennsylvania, Haines, Everhart & Jefferis, and Schzveinits 

 (type). 



This species has been commonly known in this country under 

 the name of Hypocrea citrina (Pers.) Fries, to which species it 

 is quite similar. Its habitat on bark often where there is no 

 trace of other fungi, its bright color and very large asci and 

 spores seem to be sufficient characters by which it can be dis- 

 tinguished. 



In N. Dakota this species has been collected commonly by the 

 writer on dead branches of basswood but was not found in that 

 locality on dead branches of other trees. In other localities it 

 has been commonly reported on other trees and shrubs. Thaxter 

 reports it as occurring in Connecticut only on branches of alders. 

 The species has also been reported by Montague in Cuba on the 

 bark of trees. 



9. Hypocrea aurantiaca Peck, Ann. Rep. N. Y. State Mus. 51^ : 



295. 1898 



Stroma effused, overspreading and entirely covering the hy- 

 menium of the host, cottony but giving rise to a continuous stroma 



