138 Journal of the Mitchell Society [June 



The spores are given by Brefeld as like those of T. (jlohulus, which 

 are 15-18;a thick, oval; basidia large, oval (I.e. p. 128). But Bresadola 

 after his description of var. Steidlerii on oak says that the spores of 

 the typical form on pine are globose 8 x 8-9/i and not as Brefeld gives 

 them (Ann. Myc. 6:46. 1908). 



A collection of this species from Fries on pine bark in the Curtis 

 Herbarium is, in the dry state, about 3 mm. broad and 2 mm. high 

 and the color of resin. Collections in the Farlow Herbarium from Ver- 

 mont and New Hampshire on bark of Abies have a rough surface 

 almost exactly like that of our N. quercina. This is also true of a 

 collection in Schweinitz Herbarium on pine from Bethlehem. It is 

 surprising to find that Bresadola has referred to this species a plant 

 on oak bark. A specimen from him so labelled at the New York 

 Botanical Garden is somewhat like my N. quercina but of a fleshy 

 tan color. (See under N. quercina). Both Person and Fries use 

 the specific name encephala, why, I do not know as Wildenow pu- 

 blished it originally as T. encephaliformis. 



Middle and upper districts, on fallen limbs. Curtis. 

 North Carolina (Salem?). Schweinitz. 



TREMELLA 



Plants firmly gelatinous, folded, lobed or wrinkled, or in one case 

 with thick upright branches ; color white, yellow, orange, brownish, 

 whitish or pinkish or purplish or raisin color ; becoming tough and 

 horny when dry and, in most species, shrinking greatly ; basidia spher- 

 ical to pyriform, longitudinally or obliquely divided into four equal or 

 unequal cells, from each of which extends a long sterigma with a sub- 

 globose or pip-shaped, or broadly elliptic, white, yellowish, purplish or 

 umbrinous spore on the end. The spores often sprout if put in water as 

 soon as shed, forming a rather short promycelium or sterigma with 

 a single round or broadly elliptic spore on the end, or they may form 

 numerous small sporidia as buds from the surface. The species with 

 spherical or plumply elliptic spores form a natural group and are 

 typical Tremellas. Tremclla reticulata with upright, hollow branches 

 and pip-shaped spores should be placed in a sejoarate genus. None 

 is known to be harmful. For development of basidia see Wager in 

 The Naturalist 695:364. 1914. 



The plant growing parasitically on Collybia driopJiila and named 

 by Peck TremeUa mijcetophUa, was referred by Burt to Exobasidium 



