REPORT OF THE STATE BOTANIST I9II 47 



Diaporthe inornata 



Perithecia collected in valsoid clusters 1-1.5 mm broad, 4-14 in 

 a cluster, about .3 mm broad, black, whitish within, nestling in the 

 inner bark with no circumscribing black line, the long crowded black 

 ostiola piercing and obliterating the cortical stroma, erumpent, sur- 

 rounded by the ruptured remains of the epidermis; asci subfusiform, 

 60-80 X 8-10 fi; spores crowded, oblong or subfusiform, with a 

 short bristle at each end, constricted at the septum, 2-4-nucleate, 



15-24 X 3-4 M- 



Dead branches of staghorn sumac, Rhus t y p h i n a L. Cabin 

 John Bridge, Maryland. June. E. Bartholomew. 



The species is apparently related to Diaporthe syn- 

 genesia (Fr.) Fckl. from which it differs in its smaller clusters, 

 longer and differently shaped asci and in its longer spores. The 

 stroma is cortical and surrounded by no black line. This suggests 

 the specific name. 



Diplodia polygonicola 



Perithecia minute, aliundant, densely gregarious, forming long 

 patches on the stems, erumpent, black; spores oblong or broadly 

 ellipsoid, at first hyaline, then colored, finally uniseptate, 14-16 x 

 8-9 ,x. 



Dead stems of dock leaved persicaria. Polygonum 1 a p a - 

 t h i f o 1 i u m L. r)lue Rapids, Kansas. July. E. Bartholo- 

 mew. 



Entoloma subtruncatum 



Pileus subconic, thin, glabrous, hygroi)hanous, pale yellow ochre 

 and striatulate when moist, paler and subshining when dry, trun- 

 cate or slightly umbonate, the margin incurved, the cuticle separa- 

 ble ; lamellae thin, broad, adnexed, moderately close, unequal, whit- 

 ish becoming tinged with pink ; stem slender, equal or slightly attenu- 

 ated upward, terete or compressed, hollow, silky fibrillose, pale yel- 

 low, with a whitish mycelioid tomentum at the base ; spores angu- 

 lar, apiculate at each end, 12-14 ^ 8-10 fi. 



Pileus 2-3 cm broad ; stem 3-8 cm long, 2-5 mm thick. 



Solitary or gregarious. Under pine trees. Stow, Massachusetts. 

 November. S. Davis. 



The more or less truncate apex of the pileus affords a distin- 

 guished feature of this species and is suggestive of the specific 

 name. 



