78 Mycologia 



dated Sept. 5, 1893, and addressed to Mr. J. B. Ellis by Dr. W. 

 C. Sturgis which reads as follows: "I enclose a specimen of 

 what I take to be Hypomyces hyalintts Schw. on a species of 

 Agaricus collected at Manchester, Mass. There would be no 

 doubt about it were it not for the peculiarity in the spores. 

 When mature they seem to be unequally uniseptate as in the 

 genus Stigmatea. I thought I could distinguish the septum but 

 it may be merely due to the absence of the warted surface plainly 

 visible on the greater part of the spore surface. I would like 

 your opinion on it." 



This peculiarity I had already noticed and described in the 

 spores of the type of Hypomyces hyaliniis (Schw.) Tub, before 

 finding the above note by Dr. Sturgis. I later compared the 

 spores of the specimen collected by Sturgis with Schweinitz's 

 type and find them identical. 



Dr. C. H. Peck later described Hypomyces inaequalis and in 

 a note stated : " The species is peculiar in having the septum of 

 the spores near the base as in the spores of Plowrightia morbosa. 

 This divides the spore into two unequal parts and suggests the 

 specific name." In the type of this latter species the spores are 

 not quite so strongly verrucose but show a tendency to become 

 rough and there is no doubt of its identity. 



The spores of Hypomyces Van-Bruntianns Gerard were de- 

 scribed as follows : " Spores hyaline, oblong, shortly apiculate at 

 the broad end and obtusish at the other, .0006 X .0002' " (15X5 

 mic). I have examined a specimen of this species from the 

 herbarium of Gerard but was unable to find spores in good con- 

 dition for study. The general description of the spores indicate 

 that it is a synonym of the above. 



8. Hypomyces polyporinus Peck, Bull. Buffalo Soc. Nat. Sci. 



i: 71. 1874 

 Peckiella polyporina Sacc. Syll. Fung. 9: 945. 1891. 



Subiculum effused, covering the hymenium of the host, en- 

 tirely obliterating the pores, whitish or pale yellowish ; perithecia 

 numerous, thickly scattered or closely crowded, partially im- 

 mersed in the subiculum, amber ; asci cylindrical, 8-sporcd ; spores 

 i-seriate with the ends overlapping, fusiform, mostly a little 

 curved, smooth, i-septate, 15-20X4-4-5 niic. {pi. 21, f. 77). 



