PYRENOMYCETE^ FROM WESTERN NEW YORK. 219 



biseriate, straight or curved, cylindrical or large allantoid, ends sub- 

 obtusely rounded, with a large oblong-elliptical nucleus in each end, 

 hyaline, 20-27 ^ 4-6 11.. Ostiolum concealed by the dense tomentum 

 but not ribbed. Etym. stictochaetophora, bearing stinging bristles, 

 from Greek, stizein, to puncture or prick, chaite, (N. L., chaeta,) a 

 bristle, and Gr. pherein, to bear. On hard surface of decorticated 

 maple twig, on ground, in woods, Lyndonville, N. Y., 1905, The 

 sporidia resemble those of Lasiosphceria stupea E. & E. , N. A. Pyr. , 

 p. 150 and plate 19, but are hyaline and much smaller, the asci are 

 also smaller, and there was no appearance of ribbed ostiola, so that all 

 these points, and the peculiar structure of the hairs, entitle the species 

 to specific rank. 



361. Trichosphaeria interpilosa Fairman, n. sp. 

 Perithecia scattered, minute, ovate-globose, sparingly clothed with 



dark brown hairs, which are lighter at the tips, with a minute papilliform 

 ostioli;m, asci clavate-cylindrical, 77-93 x 10 /^ ; sporidia obliquely 

 uniseriate, oblong oval to ovate, continuous, granular, occasionally 

 assuming a sub-sigmoid form from pressure in the asci, hyaline, 13-14 

 X 6-7 fi. On rotten wood, Lyndonville, N. Y., Oct., 1905. The 

 fungus occurs on lighter areas of the wood, and seems to rest upon a 

 thin brownish subiculum, and the surface of the wood is covered with 

 erect brownish hairs, whence the specific name, interpilosa. On the 

 same stick, on blacker areas, were to be seen perithecia with blackish 

 hairs, and having asci oblong clavate, paraphysate, 83-85 x 12-13 /"• 

 sporidia fusoid, hyaline, 27 x 4-6 /i, with no visible septa. This was 

 considered to be an immature form of Acantho stigma decastyhmi 

 (Cooke), which Dr. William G. Farlow in Bibliographical Index of 

 North American Fungi, Vol. I., Part I., page 3, refers to Acantho- 

 stigma pcrpiisilhim , DeNot. 



362. Amphisphaeria abietina Fairman, n. sp. 

 Perithecia scattered, or very loosely gregarious, minute, depressed 



sub-hemispherical, thin, when young and immature elevating the sur- 

 face of the bark into light brown orconcolorous pustules, when maturer 

 becoming sub-erumpent, black at the apex, and readily removable from 

 the surface, leaving therein a depression with flattened base, having the 

 same color as the interior of the bark ; ostiola minute, papilliform ; 

 asci oblong cylindrical, loo-iio x 20 p. ; paraphyses filiform, 

 nucleolate ; sporidia 7-8 in an ascus, irregularly biseriate, elliptical, 

 rounded at the ends, slightly or not at all constricted at the septum. 



