26 Report of the State Botanist. 



Zygodesmus tenuissimus n. sp. 



Effused, pulverulent, rery thin, yellowish-gray or subcinereous, 

 the concolorous margin indefinite ; the hyphse short, septate, 

 equalling or exceeding the spore in diameter ; spores globose, 

 spinulose, slightly colored, .0003 in. broad. 



Decayed wood. Canada. Sep:ember. Macoun. 



The species appears to be related to Z. 7narginaius from which 

 it is separable by its thin pulverulent character, short hyphse and 

 concolorous indefinite margin. 



Asterula Tracyi n. sp. 



Subiculum thin, hypophyllous, composed of slender flexuous 

 septate colored filaments about .00016 in. thick; perithecia 

 very minute, .004 to .005 in. broad, hemispherical or depressed, 

 subastomous, black ; asci oblong-clavate, .0011 to .0014 in. long, 

 .0003 to .0004 broad; spores oblong, slightly narrowed toward 

 one end, obscurely 2-to 4-nucleate, colorless, .0003 to .0004 in. 

 long, .00012 to 000 15 broad. 



Living or languishing leaves of Sperrnacoce j9ar«?^or«. Biloxi, 

 Miss. August. Number 1842. Tracy. 



Melogramma effusum n. sp. 



Stroma effused, thin, superficial, black ; perithecia minute, 

 carbonaceous, crowded, convex, opaque, black, white within ; 

 asci suboylindrical ; spores subfusiform, generally slightly 

 curved, colorless, triseptate, .0008 to .0011 in. long, .00016 to 

 .0u02 broad, the second rell usually swollen. 



Decayed wood. Canada. Macoun. 



This species does not harmonize well with the character of the 

 genus to which it is here referred, for the spores in this genus are 

 typically colored. The colorless spores indicate relationship to 

 the genus Zignoella, but the presence of a stroma, which with the 

 perithecia forms a thin rugose carbonaceous crust, shows its 

 relationship to the genus Melogramma and forbids its reference 

 to Zignoella. 



Stereum balsameum Pk. form reflexum. 



Pileus coriaceous, firm when dry, villose-tomentose, obscurely 

 zonate ; hymenium smoky-purplish, changing to red where 

 wounded. 



Canada. Macoun. 



