State Museum of Natural History. 75 



This fungus is very closely allied to Plasmopara vilicola, B. & De T. 

 Peronospora tnticola of most authors, of which it may prove to be only 

 a variety. It is much smaller than that plant and does not form dense 

 downy tufts or jDatches, but is so scattered and sparse in its mode of 

 growth as to be not easily visible to the naked eye. Conidia of mon- 

 strous size are not rare, but oospores were not seen. Its habit of 

 following the veins of the leaf is peculiar. 



Sporotrichum cohserens, Schw. 

 On an old wooden pail in a cellar. Menands. September. 



Sporotrichum cinereum, n. sp. 



Patches oblong, effused, pulverulent, cinereous; hyphae very 

 slender, .00015 in. broad, branched, crispate-ilexuous, denticulate ; 

 spores abundant, globoae, .00012 to .00016 in. in diameter. 



Wood of api^le tree. Manor. September. 



Coniosporium Fairmani, Sacc. 

 Dried shell of Hubbard squash. Lyndonville. Fairhian. 



Coniosporium culmigenum., Berk. 



Dead stems of motherwort, Leonurus cardiaca. Lyndonville. 

 Fairman. 



The spores in these specimens are smaller than in the type. The 

 specimens are labeled var. minor. 



Coniosporium. Polytrichi, n.sp. 



Heaps of spores minute, .003 to .004 in. broad, closely gregarious, 

 superficial, black; spores glo*bo8e, granulose, black, .00065 to 0008 in. 

 in diameter. 



Capsules of moss, Polytrichum juniperinum. Sevey. July. 



Torula convoluta, Harz. 

 Decaying tubers of potato, Solanum tuberosum. Menands. April. 



Echinobotryum atrum, Gd. 

 Decaying tubers of potato. Menands. April. Flatbush. Zabriakie. 



Stachybotrys elongata, n. sp. 



[Plates. Figs. 10 to 13.] 



Hyphae elongated, intricately brauched, sparingly septate, minutely 



roughened, forming brown tomentose cubhioa-shaped tufts one to 



three Hues in diameter, thy fertile branches terminated b\' a capitate 



cluster of spores borne upon moire or leas elongated sporophores, 



