July 1904] 
New Genera of Fungi 
223 
“A genus of very simple structure, closely allied to Acom- 
psomyces, from which it differs chiefly from the character of its 
antheridial appendage.” 
[ Laboulbeniinese] 
Acompsomyces Thaxter n. g. Laboulbeniaceae. Proceed¬ 
ings of the American Academy of Arts and Sciences, 37:37. June 
1901. 
Receptacles two-celled, bearing an antheridial branch term¬ 
inally and a single perithecium laterally. Antheridium consisting 
of several superposed cells from which single simple antheridia 
are borne directly. The perithecium borne on a stalk, the lumen 
of which becomes continuous with that of the ascigerous cavity.” 
[ Laboulbeniinese. ] 
Cainomyces, See Kainomyces. 
[Laboulbeniinese] 
Ceraiomyces Thaxter n. g. Laboulbeniacese. Proceedings 
of the American Academy of Arts and Sciences, 36:410. March 
1901. 
“Structure of the perithecium as in Lauboulbenia, its stalk¬ 
cell united to the free base of the free stalk-cell of the appendage, 
which bears a well differentiated basal cell terminally, from the 
end of which are borne antheridial branches, the successive cells of 
which produce terminally either successive secondary branchlets 
or antheridia or both, much as in Laboulbenia. Receptacle two- 
celled.” 
[Laboulbeniinese] 
Coreomyces Thaxter n. g. Laboulbeniacese. Proceedings of 
the American Academy of Arts and Sciences, 38 156. June 1902. 
“Mature individual consisting of a single series of superposed 
cells terminated by a single perithecium. Receptacle attached by a 
more or less rhizoid-like root and consisting of three superposed 
cells, the upper of which becomes divided distally by successive 
transverse septa; these divisions resulting in a series of super¬ 
posed cells, from each of which arises, on one side, a single 
branched appendage; the members of the series thus resulting 
being superposed in a single vertical row. Perithecium con¬ 
sisting of an undifferentiated stalk-cell immediately above the 
appendiculate cells, which is followed directly by the ascigerous 
cavity, the septa which Separate the basal and wall-cells being 
obliterated in mature individuals. 
“The antheridia of this anomalous genus have not been defi¬ 
nitely distinguished, but appear to be similar to those of Ceratomy- 
ces, to which it otherwise does not appear to be related. The de¬ 
velopment of the perithecium, in so far as it is shown by the mate¬ 
rial available, seems distinctly unlike that of any other genus.” 
(To be Continued.) 
