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Lower surface of living fronds of Fteris aqailina. California. 

 Prof. M. A. Howe. 



This fungus imitates Phyllacliora pteridis in habitat and general 

 appearance, and might easily be supposed to be the conidial state 

 of it. The lines of the perithecia are more narrow and less prom- 

 inent. The masses of discharged spores are rather large and very 

 numerous and partly conceal the black perithecia beneath them. 



Caeoma aberraks. Pustules suborbicular, slightly elevated, 

 .5 to 1 line broad, at first covered by a whitish membrane which 

 finally disappears revealing the mass of orange-yellow spores; 

 spores subglobose or elliptical, smooth or nearly so, .0007 to .0009 

 in. long. 



Bark of living alder. Newfoundland. May. Waghorne. 



This fungus is peculiar in its habitat. The spores do not easily 

 separate from each other, but possibly this is due in some measure 

 to immaturity. 



Aspergillus subgriseus. Grayish ; sterile hyphae creeping ; 

 fertile erect, continuous, simple, .0003 in. thick, terminating above 

 in an inflated subglobose vesicle .0012 to .0016 in. broad; sterig- 

 mata none or obsolete; spores globose, .00016 in. broad. 



On Corticium amorphum. Newfoundland. Waghorne. 



This species is separated from the related A. grisens by its 

 larger spores, continuous fertile hyphae and by the absence of 

 distinct sterigmata. 



Leptoglossum latum. Club 3 to 6 lines long, nearly or quite 

 as broad, soft when moist, rather fragile when dry, compressed 

 and somewhat irregular, black ; stem about as long as the club, 

 black ; asci clavate-cylindrical, .0045 to .005 in. long, about .0005 

 broad, 8-spored ; spores crowded in the ascus, oblong or cylindri- 

 cal, straight or slightly curved, continuous, obtuse, colorless, .001 

 to .0016 in. long, .0002 to .00024 broad; paraphyses colored, 

 thickened at the top and sometimes recurved. 



Sandy soil. Labrador. September. Waghorne. 



A species very peculiar in its broad compressed club. The 

 colored paraphyses are conspicuous under the microscope. They 

 project slightly above the surface of the receptacle and give it a 

 soft, almost velvety appearance. 



Valsa brevis. Pustules numerous, rather prominent, peri- 

 thecia 10 to 20 or more in a pustule, nestling in the inner bark ; 

 ostiola even, black, barely emerging from and dotting or oblitera- 



