458 



Perithecia gregarious, about nun. diam., buried in the unaltered 

 bark and sunk to the wood, depressed-globose. Ostiola erumpent 

 singly, short-conic-cylindrical, black, rendering the branches rough to 

 the touch. Asci (p. sp.) oblong-fusoid, 50-60 x 9 p. Sporidia biseriate, 

 oblong-fusoid, 4-nueleate, uniseptate and constricted and easily separ- 

 ating at the septum, obtuse, hyaline, 12-16 x 4-4} p. 



On branches of Lupinus arboreus, California. 



Diagnosis drawn from specc. sent by Dr. Harkness. 



D. Baccharidis, (Cke.) 



Sphceria (Diaporthe) Baccharidis, Cke. Grev. VII, p. 53. 

 Diaporthe Baccharidis, Sacc. Syll. 2636,. Cke. Syn. 2424. 

 Exsicc. Kav. F. Am. 370. 





Perithecia scattered, punctiform, covered by the epidermis, which 

 is blackened, slightly raised, and pierced by the short ostiola. Asci 

 clavate-oblong, sessile, 35 x 12 p. Sporidia biseriate, oblong-fusoid, 

 15 x 3-3} p, 3-4-nucleate (18-20 x3/i Cke.) 



On Baccharis, Darien r Ga. (Ravenel). 



D. Murrayi, (B. & .) 



Sphceria Murrayi, B. & C. Grev. IV, p. 147. 

 Diaporthe Murrayi, Sacc. Syll. 2564. 



" Perithecia covered by the cuticle, rather prominent. Asci lan- 

 ceolate. Sporidia oblong, constricted in the middle, with 4 nuclei, 

 probably septate when older. Each perithecium is surrounded exter- 

 nally with short, white hairs, but it is uncertain whether they belong 

 to the plant." 



On apple, New England. 



** On dicotyledonous, herbaceous plants. 

 D. mucronulata, Sacc. Mich. II, p. 568. 



Exsicc. EH. N. A. F. 1 1961 



Perithecia scattered or 2-3 lying close together in a line, covered 

 by the bark which is slightly raised and blackened, about \ mm. diam. 

 not circumscribed. Ostiola short-rostellate, emergent. Asci fusoid y 

 subobtuse at each end, 60x10 p, aparaphysate, 8-spored. Sporidu 

 biseriate or obliquely uniseriate, broad-fusoid, straight or curved, ends 

 acute and mucronulate, 14-15 x 6 p, faintly septate and constricted ii 

 the middle, 4-nucleate, hyaline. 



On dead stems of Solid ago, not much decayed, Newfield, N. J. 



D. Geranii, Cke. & Hark. Grev. XIV, p. 8. 



Perithecia gregarious, immersed in the bark, often surrounded b] 



