404 



Hasselbring : New Species of Globulina 



A plant having the habit of Erysiphe. On leaves of Antennaria 

 plantaginifolia Hook. Ithaca, N. Y. • 



The accompanying cut shows the general appearance of the 

 asci and spores. The asci are born in tufts on the ends of branched 

 fertile hyphae with paraphyses intermixed with them. These 

 tufts often contain many perfect asci together with some imma- 

 ture ones (shown in the cut), and often empty broken shells from 

 which the spores have escaped. Sometimes the upper half or 

 more of an ascus breaks away, leaving the slender spores pro- 



■ 



truding like long whip lashes. If the cover-glass is tapped gently 

 they may sometimes be made to fall into segments. Fig. 2 of the 

 cut shows the form of a perithecium, with paraphyses exuding 

 under the pressure of a cover-glass. 



Botanical Department, Cornell University, March 16, 1900. 



