109 



35-40x10-12 /, without paraphyses. Sporidia irregularly crowded, 

 oblong-cylindrical, hyaline, uniseptate and constricted at the septum, 

 distinctly curved, 14-18 x 2J-3 /*. The thallus of the lichen (P(n- 

 meUn tiliacea)? turns dull red (bright red inside). The perithecia 

 are scattered and superficial. This seems to be quite distinct from any 

 of the other lichenicolous species. 



Parasitic on thallus of some lichen, on various dead limbs Ivino- 



K 



on the ground, Newfield, N. J. 



Sporidia conti/tuous, (Nectriella, Sacc.) 



X. mycetophila, Pk. 26th Rep. X. Y. State Mus. p. 85. 



"Perithecia crowded or scattered, minute, smooth, subglobose. 

 pale yellow when young, then pinkish-ochre. Ostiola minute, papil- 

 late, distinct, darker colored. Asci subclavate. Sporidia oblonir. 

 simple, 12-18x4 //." 



On decaying fungi, New York (Peck). 



Of the thirty species enumerated by Saccardo in Syll. <fe Addita- 

 menta, N. mycetophila, Pk., is the only American species with con- 

 tinuous sporidia, if in fact they are continuous. N. mn'roxporn. 

 C. (t E., and N. !?///>///'/ ('!.. have the sporidia distinctly uniseptate. 



Perithecia l/alry, (Lasionectria). 



N. poliosa, E. &E. Journ. Mycol. II, p. 39. id. Ill, p. 1. 



Perithecia scattered, membranaceous, orange-red, ovate-globose. 

 165 ti diam., sparsely clothed, except the papilliform ostiolum, with 

 straight, spreading, hyaline, septate, glandular hairs, about equal in 

 length to half the diameter of the perithecium. Asci sessile, oblong- 

 cylindrical, about 75 x 12 it. Sporidia biseriate, oblong or sub fusiform- 

 oblong and subinequilateral, hyaline, uniseptate and slightly con- 

 stricted at the septum, containing several nuclei irregularly placed. 

 18-22x7-8 ,, ends rounded or subacute. The hairs which clothe the 

 perithecia are at first about 7 it thick, with the ends obtuse and a little 

 swollen, but at length they become elongated and attenuated above. 

 This must be nearly allied to N. tephrothele, Berk., but in the de- 

 scription of that species the perithecia are not described as hairy. 



Parasitic on Diatrype platystoma, (Schw.), Florida (Calkins). 



X. lasiodenua, (Ell.) Am. Nat. February, 1883, p. 194. 



Exsicc. Ell. N. A. F, 1177. 



Perithecia mostly single, subamorphous, obtuse-conical, broadlv 

 perforated above, about J mm. high, shaggy with short, septate, obtuse, 

 imperfectly developed hairs, dull red when dry, pale orange when 



