1890.] NATURAL SCIENCES OF rillLADELPPIIA. 227 



than the asci. Sporidia biseriate, oblong-fusoid, yellowish-hyaline, 

 about 5-nucleate, straight, 18-20 x 3 //. 



Rosellinia albolanata. 



On old rails, Emma, Mo., Nov. 1889. Rev. C. H. Demetrio, 269. 

 Perithecia subseriate, erumpent, the lower part remaining sunk in 

 the wood, about 1 mm. diam. clothed except the black papilliform 

 ostiolum with a thin, white, farinose coating which finally disappears, 

 bicorticate, outer wall carbonaceous, inner submembranaceous. 

 Asci cylindrical, about 100 x 10 ,«. Sporidia uniseriate, elliptical, 

 12-16 X 7-10 //. Found also bursting through the bark on dead 

 Salix limbs, at Mill Creek, near Sheridan, Montana, Nov., 1889, by 

 Mv. and Mrs. H. M. Fitch (com. F. W. Anderson). 



Bosellinia glandiformis. 



On decaying wood of an old live oak stump, St. Martinsville, La., 

 Feb., 1889. Langlois, No. 1768. Perithecia scattered, conic-hemi- 

 spheric, black and roughish (granular), 1-1 \ mm. diam. about i part 

 sunk in the wood, mostly with a slight reinforcement around the 

 lower half of the projecting part like the cup of an acorn, but this is 

 sometimes wanting. Ostiolum minute and inconspicuous. Asci 

 cylindrical 100-114 x 8-10 /j.. with numerous paraphyses. Sporidia 

 1-seriate, acutely elliptical, opaque (subhyaline at first), 14-15x7-8 

 //. Closely allied to M. subiculata, Schw. but perithecia more scat- 

 tered and rather larger and the yellow subiculum wanting. 



Hosellinia parasitica. 



On dead limbs of Symphoricarpus occidentalis, Helena, jNIontana. 

 Rev. F. D. Kelsey, No. 7. Perithecia gregarious, seated on the wood 

 in transverse cracks of the bark or often on or among the collapsed 

 perithecia of a sterile Val.sa on the same limbs, ovate-globose, cov- 

 ered with short black spreading bristles at first but these soon dis- 

 a^Dpear leaving the perithecia rough, l-i mm. diam., smoother above 

 with a broad papilliform, obtuse ostiolum. Asci cylindrical, 60-70 

 X 6 ,'i. (p. sp.) with abundant paraphyses. Sporidia uniseriate, ob- 

 long-elliptical, subobtuse, dark brown, 7-10 x 4-5 /j.. This is cer- 

 tainly very near B. detonsa (Cke.) which Sacc. in Sylloge considers 

 a var. of i?. ligniaria (Grev.) but it differs in its perithecia more 

 flattened above and in its constantly smaller sjDores. 

 Rosellinia kellermanni. 



On rotten wood of Negundo aceroides, Manhattan, Kansas, 

 March, 1889. Gregarious, superficial, perithecia subglobose about 



