•92 Cificinnatt Society of Natural History. 



I. Mesenteriformes. Cartilaginous-gelatinouf;, foliaceous, 

 naked. 



1. T. FOLiACEA, Pers. Crespitose, even, undulate, cinnamon- 

 flesh-color, the base plicate. 



On old trunks; common. Clusters 1-2 inches in height and 

 sometimes several inches in extent. The lobes very thin, undulate 

 and crisp when dry. 



2. T. LUTESCENS, Pers. Crespitose, very soft, undulate-gyrose, 

 yellowish; the lobes entire, naked. 



On fallen branches; common. Clusters '2 to i inch in breadth, 

 whitish, then pale yellowish, very soft and watery, leaving little 

 residue when dried. 



II. Cerebrin.«. Compact, then pulpy, subpruinose with the 

 spores. 



3. T. mesenterica, Retz. Simple, ascending, rather tough, 

 various in form, plicate-undulate, gyrose, orange color. 



On oak branches; not common. Sometimes an inch or more 

 in extent, but it varies exceedingly in size and shape, so that there 

 is no constant form; it may easily be distinguished, however, by 

 the orange color and the surface extremely sulcate-plicate and 

 gyrose. 



4. T. intumescens. Sow. Subceespitose, rounded or conglomer- 

 ate, soft, brown, becoming black when dry, somewhat twisted and 

 lobed. 



- On dead branches of willow; common. An inch or two in 

 extent, when fully grown it consists of numerous round, soft, 

 pulpy lobes. It is black when dry, and resembles Exidia glatidiilosa, 

 but there are no papillae upon the surface. 



5. T. VESiCARiA, Eng. Bot. Erect, firm, gelatinous within, 

 undulate and gyrose, pallid; spores oblong, curved, .010-012 mm. 

 long. 



On the ground encircling sticks, the bases of herbaceous stems, 

 etc.; not uncommon. Often in shape of a hollow stem and 

 branches 2-4 inches in height, becoming hard and horny when 

 dry. It is Guepinia helvclloidea, Sciiw. N. A. Fungi, No. 1085. 



6. T. ALBiDA, Huds. Ascending, tough, expanded, undulate, 

 subgyrose, pruinose, whitish, becoming brownish when dry; spores 

 oblong, curved, .008-. 009 x. 005 mm. 



On old trunks in summer: common. An inch or two in heiglit 

 and confluent for several inches. Possibly our white Tremella is 

 ■different from the European species. 



