251 



tufts closely surrounded by the transversely ruptured epidermis. Spo- 

 ridia uniseriate, uniseptate, subacuminate, constricted at the septum, 

 nearly colorless, with one or two nuclei in each cell, 20-25 // long. 



On dead alder branches, Center, N. Y., in company with Torula 

 ulnea. 



Var. carwosa, Cke. Grew XV, p. 84, has the sporidia 3-septate, 

 (Montagnella)f Specimens from Peck (in our Herb.) have the peri- 

 thecia> ovate-globose, rough, \-\ mm. diam. Ostiolum indistinct. 

 Clusters of closely packed, subconfluent perithecia elliptical, l-l|x 

 2 mm. diam. Asci cylindrical, 75-80 x 6-7 /i. Sporidia 20-25 x 4 fi. 

 Differs from 0. Alni, Winter, in its smaller, hyaline sporidia. 



0. stapltflina, E. & E. (Plate 41) 



Plowrightia staphylina, E- & E. Proc. Acad. Nat. Sci. Phil. July 1890, p. 248. 



Cespitose, clusters of perithecia about 1 mm. diam., mostly seri- 

 ately confluent for several centimeters in length, erumpent through 

 cracks in the bark and only slightly prominent. Perithecia black, 

 small, 150-200 jj. diam., ovate or obovate, narrowed below into a sub- 

 stipitate base. Ostiolum conic-papilliform, soon broadly and some- 

 what irregularly perforated. Asci clavate-cylindrical, subsessile, par- 

 aphysate, 60-65 x 8 //. Sporidia mostly biseriate, oblong or clavate- 

 oblong, hyaline, uniseptate and slightly constricted, 12-15x4-5 jjl, 

 ends obtuse. 



On bark of Staphylea trifolia, London, Canada (Dearness). 



0. seriata, (Pk.) 



Cucurbitaria seriata, Pk. 28th Rep. p. 75. 

 Otthia seriata, Sacc. Syll. 2801, Cke. Syn. 2487. 



Perithecia cespitose, erumpent in long, flexuous, interrupted lines, 

 small, nearly globose, black, white within, sometimes collapsing, the 

 stroma, if present, merely cortical and subferruginous. Asci cylin- 

 drical or subclavate. Sporidia uniseriate or rarely crowded, unisep- 

 tate, oblong-elliptical, slightly constricted at the septum, hyaline. 

 10-13 [i long. 



On dead bark of Euonymus, Albany, N. Y. 



0. morbosa, (Schw.) 



Sphceria morbosa, Sehw. Syn. Car. 134. Fr. S. M. II, p. 417, Farlow in Bull. Buss. 



Inst. 1876, p. 449, tab. IV VI. 

 Plowrightia morbosa, Sacc. Syll. 5295. 

 Fxsicc. Roum. Fungi Gall. 4450. -Ell. N. A. F. 691. 



Perithecia globose, \ mm. diam., smooth, black, collapsing, densely 

 crowded and forming a continuous layer on the surface of elongated 

 swellings 4-8 cm. long and 1-2 cm. thick, formed from the scarcely 



