1921] 
BURT—TREMELLACEAE, DACRYOMYCETACEAE, AURICULARIACEAE 381 
latus came into extensive use, because there was formerly a 
strong tendency among many European botanists to use the 
first binomial containing the true genus of the plant without 
regard to the priority of the specifie portion of the binomial. 
When publishing and defining his new genus Dacryomyces, Nees, 
as he states, took Persoon's Tremella abietina and renamed it 
Dacryomyces stillatus Nees. How generally Nees was followed 
in this instance is shown in the following synonymy. It is for- 
tunate that such cases as this are the exception. In passing 
it may be noted that Nees spelled his genus Dacryomyces. 
D. abietinus (Pers.) Schroeter, Krypt. Fl. Schlesien 3: 400. 
1888; Coker, Elisha Mitchell Scientif. Soc. Jour. 35: 161. pl. 
23. f. 12; pl. 63. f. 3, 4. 1920. 
Tremella abietina Persoon, Obs. Myc. 1: 78. 1796; Syn. 
Fung. 627. 1801; Myc. Eur. 1: 104. 1822.—Dacryomyces 
stillatus Nees, System, 89. pl. 7. f. 90. 1816; Fries, Syst. Myc. 
2: 230. 1823; Epicr. 592. 1838; Hym. Eur. 699. 1874; Berk- 
eley, Outl. Brit. Fung. 291. pl. 18. f. 8. 1860; Peck, N. Y. 
State Mus. Rept. 22: 88. 1869; Berk. & Curtis, Grevillea 2: 
20. 1873; Morgan, Cincinnati Soc. Nat. Hist. Jour. 11: 94. 
1888; Brefeld, Untersuch. Myk. 7: 155. pl. 10. f. 9-11. 1888; 
Sacc. Syll. Fung. 6: 798. 1888; Stevenson, Brit. Hym. 2: 318. 
1886; Bourdot & Galzin, Soc. Myc. Fr. Bul. 25: 34. 1909. 
Illustrations: Berkeley, loc. cit.; Brefeld, loc. cit.; Coker, loc. 
cit. See Sacc. Syll. Fung. 19: 536. 1910, for reference to others. 
Fructifications minute, usually about 2 mm. in diameter, 
gregarious, sometimes touching, convex and barium-yellow at 
first, in drying becoming flattened, pezizoid and somewhat 
orange or hazel (resin-colored), attached by central part of the 
under side; spores colored like the fructification, curved, becom- 
ing 7-septate, perhaps rarely 9-septate, 15-24 x 6-9 y. 
Fructifications 1-2 mm. in diameter in specimens studied by 
me, contracting in drying to 1 mm., sometimes longer by con- 
fluence. 
On decaying, decorticated pine and other coniferous wood. 
Vermont to South Carolina. Rare, but more common in Eur- 
ope. August to October. 
