Jan. 1896. Flora of \V. Virginia — Millspaugh & Nuttall. 99 



D. rubellum microsporum Sacc. 



On deati limb Mag/io/ia acti'minata, Aug. 16, 1894, Short Creek, 

 alt. 1,000 ft. On Liriodcndron Tulipifera {N'uttall, 1659). 



TUBERCULINA Sacc. 



T. persicina (Ditm.) Sacc. 



Parasitic on Uredo (^■stoxw?^) nitens,\h2iXox\ Rubiis Baileyanus ]\xne 

 10, 1894 {Nuttall, 1557, 527). 



ILLOSPORIUM Mart 



I. caespitosum E. & E., Proc. Phiia. Acad., 1894, 385. 



Type habitat: On rotten log, Nov. 15, 1893 (Nuttall, discov. 

 1286, 231). 



Sporodochia globose, 100 to 1 10 //. diameter, cespitose, form- 

 ing tufts about I mm. diameter. Hypha^ 6 to 8 // thick, branched, 

 the branches curved or tortuous. Conidia globose or ovate 6 to 

 12 //. diameter. 



Differs from / coccinelluin Cke. in its color, and larger cespitose 

 sporodochia. 



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 be- 

 coming darker, at first sub-pulvinate, becoming depressed or flat- 

 tened, .5 to. 75 mm. diameter. Basidia slender, 25 to 30 x 1.25 /x 

 simple or oftener branched. The branches erect. Conidia hya- 

 line, oblong, minute, 3 to 4 x i to 1.25 //. 



CYLINDROCOLLA, Bon. 



C dendroctoni Peck, Flora, W. Va., 1892, 516. 



Type habitat: On dead insects, Dendroctonus frontalis, beneath 

 the bark of pine. Hampshire Co., near Romney, {Millsfiaugh). 



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

 in their burrows in the inner bark of the tree [Finus Virginiana). 



Sporodochia minute, forming irregular masses, soft, somewhat 

 waxy, white or whitish; sporophores slender, abundantl}' branched 

 above, often compacted below into a short stem-like base, spores 

 catenulate, short cylindrical, subtruncate, colorless, .00016 to 

 .0002 in. long, .00008 to .0001 in. broad. 



On some of the insects there is a cottony or flocculent mass of 

 white mycelium interwoven in a somewhat reticulate manner, and 

 collected in strings or bundles. It bears no fruit but is probably 

 a luxuriant growth of the mycelium of this fungus. 



Occasionally the fungus seems to spread from the insect to 

 bark immediately adjacent to it. 



