PROTOMERULIUS FARLOWII BURT, N. SP.1 EDWARD A. BURT Mycologist and Librarian to the Missouri Botanical Garden Professor in the Henry Shaw School of Botany of Washington University During his last illness and only two days before his death, Dr.Farlow had mailed to me a very interesting fungus which hecollected near his summer home at Chocorua, New Hampshire.This fungus, which I have named Protomerulius Farlowii, hasapparently more minute pores than have been recorded forany species heretofore described. The pores are so minute thatto the naked eye the fructification has the aspect of a very thinSebacina with its hymenial surface slightly pruinose. Thispruinose surface becomes barely visible as irregularly angularand somewhat sinuous pores with very thin dissepiments whenviewed through a pocket magnifier of fine definition having amagnification of 10 or more diameters, and is beautifully shownunder the compound microscope with an objective of about 16mm. focal distance. Under this higher magnification the dissepiments appear asthin, irregular folds up to 30 , high and about 20 , thick, withthe edge acute and lacerate. The angular pores are incompletelyenclosed by the dissepiments; the hymenial configuration is thatof Merulius rather than Poria. Preparations of the hymenium show longitudinally cruciatelyseptate basidia 9-10 X 7 p. Hence this fungus is a member of theTremellaceae and has the hymenial configuration of a Merulius. A. Mller collected at Blumenau, Brazil, a fungus having theform of a Merulius and longitudinally cruciately septate basidia,which he published2 as Protomerulius brasiliensis new genus andspecies. Although the hymenial folds and pores are muchsmaller and less perfectly developed than those of Protomeruliusbrasiliensis, the generic description of Protomerulius applies wellto the New Hampshire specimen. Although 24 years have elapsed since the publication of Proto-1 Issued October 11, 1919. SBot. Mitt. a. d. Tropfen 7:60. 1895; 8:129, 172. pl. S.f. 3, 4, pl. 5. f. 36.Ax. Mo. BOT. GAR�., VOL. 6, 1919 (175)
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