WEST VIRGINIA GEOLOGICAL SURVEY 45 



ILLOSPORIUM Mart 

 I. CAESPITOSUM E. & E., Proc. Phila. Acad., 1894, 385. 



TYPE HABITAT: On rotten log, Nov. 15, 1893 (Nuttall, 

 discov. 1286, 231). 



Sporodochia globose, 100 to no /u diameter, cespitose, 

 forming tufts about i mm. diameter. Hyphae 6 to 8 /x thick, 

 branched, the branches curved or tortuous. Conidia globose 

 or ovate 6 to 12 ^ diameter. 



Differs from / coccinellum Cke. in its color, and larger 

 cespitose Sporodochia. 

 I. MALIFOLIORUM, J. L. Sheldon, Torreya, 8:139-41 (1908). 



Spots suborbicular, or coalescing and becoming irregular, 

 brown or sometimes mottled with gray and with a small gray 

 spot near the center, 5 to 15 mm. in diameter; sporodochia 

 hypophyllous, minute, gelatinous, yellowish-amber and black- 

 ening, subspherical when moist (i5O/>i), becoming disc-shaped 

 or irregular when dry (60 to IOO/K) ; sporophores branched; 

 conidia hyaline, oblong, I x 3.5 to 4/x. 



On leaves of Malus in various parts of the State (Sheldon] , 

 Greenbrier, near White Sulphur Springs (Waite). 



HYMENULA Fr. 

 H. CEREALIS E. & E., Proc. Phila. Acad., 1894, 386. 



TYPE HABITAT : On wheat straw Triticum sp. brought in 

 from Painesville, Ohio, May 24, 1894 (Nuttall, discov. 1520, 



495)- 



Sporodochia gelatinous, orbicular, yellowish-amber color 

 becoming darker, at first sub-pulvinate, becoming depressed 

 or flattened, .5 to .75 mm. diameter. Basidia slender, 25 

 to 30 x 1.25 /x simple or oftener branched. The branches 

 erect. Conidia hyaline, oblong, .minute, 3 to 4 x I to 1.25 ^. 



CYLINDROCOLLA, Bon. 

 C. DENDROCTONI Peck, in Millsp. Flora, .W. Va., 1892, 516. 



TYPE HABITAT : On dead insects, Dendroctonus frontalis, 

 beneath the bark of pine. Hampshire Co., near Romney, 

 (Millspaugh) . 



The insects are probably killed by this fungus, as they lie 

 dead in their burrows in the inner bark of the tree (Finns 

 Virginiana) . 



Sporodochia minute, forming irregular masses, soft, some- 

 what waxy, white or whitish; sporophores slender, abun- 

 dantly branched above, often compacted below into a short 

 stem-like base, spores catenulate, short cylindrical, subtrun- 

 cate, colorless, .00016 to .0002 in. long, .00008 to .0001 in. 

 broad. 



