248 



Carolina (Berk), on decaying poplar, Carolina (Fries, in S. M. II, p. 

 452). 



The Jibove characters are from a Finland specimen, on rotten 

 wood, from Karsten. They certainly agree well with the description 

 in A. & S. Conspectus. Whether this or Melanomw.a exile, (Schw.) 

 (see p. 184) is the true Sphceria exilis, A. &, S., we can not say, but as 

 they are evidently two distinct things, we have given descriptions of 

 both. 



GIBBERA, Ft. 



Suram. Veg. Scand. p. 402. 



Perithecia cespitose, on a superficial, thick, dematiaceous, con- 

 idia-bearing stroma, carbonaceous, fragile, bristly, obsoletely papil- 

 late. Asci cylindrical, 8-spored. Sporidia uniseriate, oblong-elliptical, 

 uniseptate, pale yellow. 



Fries takes this genus in a more comprehensive sense, including 

 also Gihberella (see liypocreaceoe). 



G. Vaccinii, (Sow): (Plate 26) 



Sphizria Vaccinii, Sow. Eug. Fung, tab. 373, fig. 1. 

 Gibbera Vaccinii, Fr. 1. c. 

 Exsicc. Fckl. F. Rh. 1757. — Rab. Herb. Myc. 435. — Rehm Asc. 636. — Thum. F, Austr. 959. 

 id. M. U. 1851.— Plowr. Sph. Brit. 296.— Krieger F. Sax. 168.— Roum. F. G. 565. 



Perithecia crowded on a black, felt-like stroma, sphteroid, slightly 

 attenuated below, obsoletely papillate, about \ mm. diam., clothed 

 with short (60-70x6-7 //), rigid, black, continuous bristles. Asci 

 cylindrical, short-stipitate, 8-spored, 90 x 8-9 //. Sporidia obliquely 

 uniseriate, oblong-elliptical, uniseptate, scarcely constricted at the 

 septum, hyaline or pale olivaceous, 15-18 x 7-8 fi. 



The conidial stage is Helminthosporium Vaccinii, Fr. 



On branches of Vaccinium Vitis Idma. Common in Europe but 

 thus far not found here. This species matures only on dead branches. 



OTTHIA, Nitschke. 



Fckl. Symb. Mycol. p. 169. 



Perithecia erumpent, cespitose or gregarious, subspherical, mi- 

 nutely papillate, black, glabrous, carbonaceo-coriaceous. Asci cylin- 

 drical, 8-spored, paraphysate. Sporidia elliptical or fusoid, brown or 

 brownish-yellow, uniseptate. The pycnidial stage is a Diplodia. 

 A. Sporidia yellow or brownish-yellow. 



