New Iowa Fungi. 



J. B. ELLIS AND E. W. D. HOLWAY. 



The following new species of fungi are from Iowa, with two- 

 exceptions, which as noted in proper connection, come to us 

 from California. 



Crvptosph.eria juglandina Jil/is & Holzvay. 



Stroma effused, continuous or interrupted, extending for 2-4 

 cm, slightly raising the overlying epidermis which is also of 

 a lighter color than the surrounding parts; margin definite. 

 Perithecia numerous, ovate-globose ^-^ mm in diameter, 

 crowded in dense patches and covered by a thin continuous, 

 black stratum extending along just below the surface of the- 

 inner bark which is of a dirty white color below this stratum, 

 but on the surface the color is unchanged. Ostiola obtuse, 

 erumpent, mostly 4-6 together, piercing the epidermis but 

 scarcely rising above it. Asci clavate, long-stipitate, iio^ 

 long, p. sp. about 6dx lO;/^ 8-spored, obscurely paraphysate. 

 Sporidia irregularly crowded, allantoid, 3ellow-browm. con- 

 tinuous, moderately curved, obtuse, 15-20x3^-4/^//. 



x\ horizontal section through any prominent part of the 

 stroma shows a black circumscribing- line in the bark but there 

 is no black line penetrating the wood, though the surface of 

 the wood especially around the margin of the stroma is more 

 or less blackened. This comes near C. sepulta Nits, but 

 that species has smaller perithecia buried in the unaltered 

 substance .of the bark and rather longer sporidia. 



On dead limbs of yitgians cinerea, Decorah, Iowa, June, 

 1892. 



