435 



stroma bounded by a black, circumscribing line, 4-10 in a group, their 

 slender, fasciculate ostiola barely erumpent or entirely concealed by 

 the epidermis which is only very slightly or not at all elevated over 

 them. Asci about 70 x 8-10 jjl, cylindrical. Sporidia obliquely uni- 

 seriate, elliptical, uniseptate, 18-20 x 7-8 fi. 



On dead branches of Vaccinium corymbosum., Newfield, N. J. 



Much like D. apocrypta, but the perithecia are smaller and sunk 

 in the wood, only their apices rising into the bark, and in that species 

 there is no black, circumscribing line, either in the wood or bark. 



D. salicella, (Fr.) 



Sphceria salicella, Fr. S. M. II, p. 377. 



Sphoeria salicina, Curr. I,inn. Trans. XXII, tab. 48, fig. 149. 

 Halonia salicella, Fr. Summa Veg. Scand. p. 397. 

 Diaporthe Salicis, Nitschke, in Feckl. F. Rh. 1987. 

 Cryptospora salicella, Fckl. Syrab. 193. 

 Diaporthe salicella, Sace. Mycol. Ven. spec. p. 135. 

 Exsicc. Fckl. F. Rh. 800, 1987. Rab. F. E. 2046. Thum. M. U. 170. 



Perithecia mostly in groups of 4-8, buried in the inner bark with- 

 out any stroma, the short, conic-cylindrical ostiola breaking through 

 the epidermis in a small fascicle projecting a little above the slightly 

 pustuliform-elevated epidermis, and appearing like small black specks 

 thickly scattered over the limb. Mixed with the groups are also many 

 perithecia standing singly. Asci 65-70 x 14-16 //, elongated-clavate. 

 Sporidia biseriate, oblong-fusoid, inequilateral, uniseptate, not con- 

 stricted, yellowish-hyaline, 15-20 x4J-5| /i, ends subobtuse. 



On dead limbs of Salix, New York (Fairman), Canada (Dear- 

 ness), Pennsylvania (Berk, in Grev. IV, p. 147). 



The perithecia are 400-500 /i diam., thin and membranaceous, 

 collapsing from below. 



D. sociata, (C. & E.) 



Valsa sociata, C. & F- Grev. VI, p. ii, 

 Diaporthe sociata, Sacc Syll. 2378. 



Perithecia 3-5 together, buried in the unaltered substance of the 

 bark, minute (200 //), globose, slightly raising the epidermis, which is 

 ruptured by the short, obtuse, rather broadly perforated ostiola. Asci 

 oblong-clavate, about 4x8//. Sporidia oblique or biseriate, oblong- 

 fusoid, uniseptate, hyaline, 10-12 x 3 a (12 x4 jjl, Cke.). 



A horizontal section shows a circular or elliptical stromatic area 

 about 1 mm. diam.. bounded by a faint black line which hardly pene- 

 trates to the wood. 



On dead limbs of Laurus Benzoin, Newfield, N. J. With a 

 tufted Helminthosporium rising from the pustules and bearing cla- 

 vate, multiseptate conidia. 



