146 THE WEST VIRGINIA FLORA 



S. ACERiNUM Pers. 



On living- tree trunks, March 7, 1893 (Nnttall, 858). 



HYMENOCHAETE Lev. 

 H. RUBiGiNOSA (Schr.) Lev. 



On dead log, March, 1893 {Nnttall, 911). On Rohinia 

 pseiidacacia, Monongalia: near Morgantown ; on Querciis 

 alba, Preston: near Terra Alta (Sheldon). 



H. TABACINA (Sow.) Lcv. 



On dead twigs, March, 1893 {Nuttall, 910) ; on Acer, 

 Pocahonta-s : Cranberry Glades {Sheldon). 

 H. CORRUGATA (Fr.) Lev. 



On decorticated limb Bcinla Icnta, Grant Co., near Bay- 

 ard (MillspaugJi). On Magnolia Fraseri, Feb. 8, 1894. 

 Setae 38 x 7.5 ju, (Nuttall, 1364). 

 H. UNICOLOR B. & C. ? 



On Bctula lenta, on dead Kalmia latifolia? July i, 1893 

 (Nuttall, nil, 96). 



CORTICIUM Fr. 



C. SALICINUM Fr. 



On dead Sali.v nigra, March 15, 1894 (Nuttall, 1401). 

 C. Oakesii B. & C. 



On living Ostrva Virs;inica, March 21, 1893 (Nuttall, 

 ^77). 



C. GLOBIFERUM E. & E. 



Underside of dead log in deep laurel thicket. Short Creek, 

 March 25, 1893 (Nuttall, 940). 

 C. ARACHNOiDEUM Berk. 



On dead damp twigs in dense pile, Jan. 18, 1894. Diffused 

 for 30 X 8 cm. Spores 4 to 5 x 2 to 3 /x. The species when 

 fresh has a wrinkled or crusted appearance looking very like 

 a INIerulius. but soon becomes flat and plane (NiittaU, 1344, 



303)- 

 C. RADIOSUM Fr. 



On dead trunk, partlv beneath loose bark. Short Creek, 

 May 18, 1893 (Nuttall, 965). 

 C. LEVE Pers. 



On Hamamelis Virginica, Dec. 20, 1894 (Nuttall, 1500). 

 C. ALBO-FLAVESCENS E. & E., Field Mus. Bot., 1:170 (1896). 



Type habitat : On bark of dead Tsuga Canadensis, Feb. 

 24, 1894 (Nuttall, discov. 1394). 



At first orbicular, subpezizoid, i to 2 mm. diameter, be- 

 coming more irregular in shape and i cm. or more diameter, 

 lower stratum milk-white, consisting of loosely interwoven, 

 branching threads, and extending out beyond the pale-oliva- 

 ceous or yellowish, membranaceous hymenium so as to form 



