132 Journal of the Mitchell Society [June 



particles on the dorsal surface, aiul tliere was iiotliiiiti' in tlie micro- 

 scopic structure to contradict this. No spores were found. Tremella 

 crenata is also the same, the crustaceous particles showing up plainly 

 on wetting- in a good s])eeimen from the Sehweinitz Herbarium (see 

 page 151). Bresadola has found in the Trentino a plant much like 

 E. gelatinosa, but growing on coniferous wood, to which he gives the 

 name E. umhrinelhi. It has not been reported from America, but I 

 find on examination of Peck's type that his TrenieUa pi)iicola is very 

 like it if not the same (see note on page 150). 



llGfl. On dead oak wood by Battle's Branch, December 2, 1913. 

 3854. Fallen oak limbs, east and sonthwest of old Graded School, December 9, 

 1919. Photo. 



3900. On fallen branch of white oal-. December 13, 1919. 



3901. On fallen oak branch, December 13, 1919. 



3938. On dead branch of Prunus serotina in Arboretum, January 13, 1920. 

 4089. On grape vine (V. rotundifolia), February 4 and 20, 1920. Basidia oval, 

 four-celled, 9.3 x 11^. Spores smooth, Avhite, curved, 3.7-4.8 x 9.3-13.5^. 

 4091. On oak branches back of Athletic Field, January 17, 1920. 

 4114. On oak limb by Battle's Branch, February 13, 1920. Photo. 



2. Exidia glandulosa (Bull.) P'r. 



Plates 36 and 55 



Plant forming convoluted, gelatinous, thickish, pillow-like masses 

 which may be single or fused into long rows along cracks in the bark ; 

 narrowly attached and spreading out laterally; upper (outer) surface 

 bearing basidia and faintly glaucous under a lens, also more or less 

 conspicuously dotted in a scattered way with small, black, protruding 

 warts or points; color deep blackish-brown, like very dark wine jelly, 

 the lower surface a little paler, watery-shining and not glaucous or 

 warted; when protected from light, plants are apt to be much paler, 

 approaching white (No. 4198) ; texture rather firmly gelatinous, deli- 

 quescing only when long wet, not viscid. On drying the plants flatten 

 down and collapse into a thin l)lack membrane. 



Spores smooth, white, rod-shaped, curved, 3.7-4.1 x 9-12.5/^. In 

 sprouting the contents usually moves to one end, the empty end being 

 cut off by a wall, the protoplasmic end sprouting at the mucro. At 

 times both cells contain protoplasm and both sprout ; again no cross 

 wall is formed and the entire spore sprouts at the mucro. Basidia 

 pear-shaped, four-celled by two longitudinal divisions. 



