The Mycologic Floni of the Miami Valley, Ohio. 93 



Genus II. — Exidia, Fr. 



Funyi distended with jelly, tremulous, somewhat niarginate, 

 papillose ; a colored gelatinous stratum inclosing the sporophores, 

 the spicules of which are erumpent only at the apex. 



1. E. TRUNCATA, Fr. Soft, distended with jelly, disk truncate- 

 plane, glandular, black, shining, at length cavernous, punctate- 

 scabrous underneath; stipe very short; spores oblong, curved, 

 .012-.014 mm. in length. 



On oak branches; common. .An inch or less in height and 

 breadth. When dry very thin and intensely black, the glands 

 seldom apparent. 



2. E. GLANDULOSA, lUiU. Effuscd, nearly plane, thick, undulate, 

 becoming black, spiculose with conic papilUx, the underside ciner- 

 ■eous and somewhat tomentose; spores oblong, curved, .012-.014X 

 .005 mm. 



On old trunks and branches; very common. Extremely vari- 

 able in form and size; usually rather flattened and effused, some- 

 times for several inches. Sometimes becoming pallid on the 

 underside or inside of trunks away from the light. The papillae 

 can be plainly seen with a common lens. In England it is called 

 "Witch's Butter." 



(ienus III. — N.KMATELIA, Fr. 



Fungi consisting of a firm ileshy nucleus, inclosed by a thick 

 gelatinous stratum, fibrous-tloccosc within, the whole surface 

 covered by the sporophores. 



I. N. NUCi-EA'i'A, Schw. Effused, ])lanc, somewhat gyrose and 

 undulate, white, then rufescent; the nucleus small, hard, white; 

 spores oblong, curved, .010 mm. in length. 



On old trunks of Acer saccharinuiii under the bark and erumpent 

 from the cracks: common. Effused sometimes for several inches, 

 folded and wrinkled. The gelatinous portion shrinks to a mere 

 meml)rane in drying, leaving the while grains, as large as mustard 

 seed, (piite cons])icuous. This seems different from the luiropean 

 species which are termed "solid, not colla])sing by dryness." 



Genus IV. — Dacrvmvces, Nees. 



Fungi gelatinous, homogeneous, traversed within by septate 

 fibers; conidia moniliform-concatenate; sporophores at the apex ot 

 the filaments, clavate, two-forked when fully grown; spores 

 septate. 



