State Museum of Natuarl History. 49 



of mere flocculent dust. The spores are at first short and simple, but 

 they soon become uniseptate and then longer and mostly triseptate. 



Aspergillus phaeocepbalus, D. & M. "Spanish onions." Albany. 

 Oct. 



Aspergillus clavellus, n. sp. (Plate &, figs. 1-5.) Sterile flocci 

 creeping, abundant, soft, white; fertile flocci erect, gradually enlarged 

 above into an oblong-elliptical or clavate head ; head at first white, 

 then glaucous-green; spores globose or broadly elliptical, smooth, 

 .00016 in. to .0002 in. long. Cooked squash. 'Albany, Oct. This 

 species, by the clavate apices of the fertile flocci, is related to A. mollis, 

 but that species is white and has the fertile flocci branched and the 

 spores large. In color, our plant resembles A. glaucus, but that has 

 the apices of the fertile flocci globose, and the spores, according to 

 Oorda, much larger and rough. 



Monilia Harknessii, n. sp. Flocci tufted, slender, tawny, breaking up 

 into elliptical or lemon-shaped spores, .00025 in. to .0004 in. long, 

 about .0002 in. broad. Decaying wood. Helderberg mountains. 

 Nov. This fungus is related to and congeneric with such species as 

 Oidium aureum, O. fulvum and O. pulvinatum, but if the genus 

 Oidium is to be limited to such fungi as grow on living vegetable 

 tissues, as some mycologists hold, then the species just mentioned and 

 the one just described must be referred to the genus Monilia. 



Oolletotrichum.lineola, Gd. Old corn stalks. Chatham, Columbia 

 county. June. Sometimes this fungus is so abundant that the patches 

 surround the whole stem and appear to clothe it with a thin blackish 

 pubescence, though the flocci have a tendency to arrange themselves in 

 parallel lines. It is this tendency apparently which suggested the 

 specific name. The gelatinous subiculum which is said to exist is not 

 at all apparent in our specimens. The spores vary somewhat, being 

 in some instances about equally pointed at both ends, in others they 

 are much more pointed at one end than at the other. Psilonia 

 apalospora, B. & R., and Vermiculariavelutina,B. & R., according to 

 my Curtisian and Ravenelian specimens are very closely related to each 

 other and to this species if indeed they are really specifically distinct. 



Sporocybe nigriceps, n. sp. (Periconia of some authors.) Plant 

 black, .025 in. to .03 in. high; stem erect, shining, smooth, septate, 

 sometimes with one or two short thick branches at the top; head 

 globose or elliptical ; spores globose, minutely rough, colored, .00025 

 in. to .00035 in. in diameter. Dead leaves of sedges and carices. 

 Albany and Adirondack mountains. July and Aug. Two forms occur, 

 sometimes growing on the same leaf. In one the head is larger, 

 elliptical in outline and nearly as long as its stem, which has but one 

 or two septa. In the other the 'head is smaller and nearly or quite 

 globose and the proportionally longer stem has several septa. Sporocybe 

 nigrella is said to inhabit dead leaves of grass, and S. cholorocephala, 

 dead leaves of carices. I am not acquainted with either species, but 

 as both are described as having smooth spores our plant cannot well 

 be referred to either of them. An unfortunate disagreement exists 

 among European mycologists in the application of the generic names 

 Sporocybe and Periconia. The English mycologists employ the former 



[Assem. Doc. No. 127.] 7 



