101 



On exposed roots of Ulmus, seaboard of South Carolina (Ravenel). 

 Clusters 1 nun. in diain. Perithecia 165 /z." The specimens in Raw 

 F. Am. 645, show only the depressed-tuberculiform, flesh-colored 

 stroma and conidia, 



N. diplocarpa, E. & E. Proc. Phil. Acad. July, 1890, p. 244. 



Perithecia gregarious or subcespitose (2-3 connate), superficial, 

 ovate, about \ mm. diam., clothed with white, septate, sparingly 

 branched, substrigose hairs, collapsing more or less distinctly above, 

 deep flesh-color, ostiolum papilliform r large and distinct, smooth. Asci 

 clavate, 40-50x8-12 /z, filled with reddish granular matter at first, 

 then containing 4 oblong-elliptical, hyaline sporidia, 8-12x4-5 p t uni- 

 septate and more or less constricted at the septum, ends rounded and 

 obtuse, lying irregularly in the asci. Paraphyses apparently present 

 but obscure as are also the asci which are soon dissolved. Together 

 with the sporidia already described are others much larger, 30-45 x 1 8 

 -25 //, granular, hyaline, uniseptate and strongly constricted at the 

 septum, oblong-elliptical in shape with the ends obtuse and rounded. 



On thallus of some foliaceous lichen (Parmelia) ? on trunk of ;i 

 tree, Farmington, N. Y. (Edgar Brown). 



In examining our Exsiccati we find that specimens collected in 

 Missouri by Demetrio on thallus of Parmelia and issued by Dr. Winter 

 in his Rabenhorst- Winter Fungi, No. 3252 .as Nectria lecanodes. 

 Rabh., are the same as this. The description, however, of N. lecanodes 

 does not apply to this, that species having sporidia only 9-1 1 x 3-4 /*. 

 and in fact the specimens of N. lecanodes in De Thumen's Mycotheea, 

 1746 and Fungi Gallici 665 (both collected by Madame Libert) as 

 well as those in Rehm's Ascomycetes No. 38 and Plowright ; s Sphaer, 

 Britannici 212, have the sporidia 8-12 x 3-4 ju. The New York and 

 Missouri specimens also differ from those just cited in their brighter 

 red color and distinctly hairy perithecia and come nearer to JV. eryth- 

 rinella, Nyl., which again has the perithecia only partially emergent 

 and sporidia 18-25 x 6-8 //, much larger than in N. lecanodes it is true, 

 but still far too small. Possibly this variability in the size of the spo- 

 ridia is only accidental, but from its occurrence in specimens from snch 

 widely separated localities there is reason to consider it normal and it 

 so, characteristic of a species not heretofore described. 



B. Perithecia scattered or gregarious. 



N. tremelloides, E. & E. Journ. Mycol. II, p. 121. 



Perithecia gregarious, ovate, 300 fx diam., coarsely farftiraceoiis 

 and subtuberculose-roughened, pale orange, with a distinctly papillose- 

 conical ostiolum. Asci about 50x7-8 /i, cylindric-clavate, sessile, im- 



