174 
Mycologia 
A slight error on page 12, due to a misunderstanding, should 
be corrected. Mr. F. A. Walpole had no connection with the 
color project of the American Mycological Society, the prepara- 
tion of which was delegated to the late Dr. L. M. Underwood, 
Dr. W. A. Murrill, and the writer. Mr. Walpole died before the 
committee was appointed, and the project was abandoned after 
two years’ work by the committee in favor of Dr. Ridgway’s 
work, which had not previously come to their notice. 
P. L. Ricker. 
Faull’s Cytology of the Laboulbeniales 
FaulP has recently published an account of his cytological 
studies upon two species of the Laboulbeniaceae found on the 
elytra and on the free tip of the abdomen of the common whirli- 
gig beetle. The species, Laboulbenia chaetophora and L. Gyrini- 
darum, are closely related forms and are not easily distinguished 
in the young stages. Both species are apogamous, nothing resem- 
bling antheridia being found, although a much-branched multi- 
cellular trichogyne is present in each species. Thaxter’s account 
of the general morphology of species of the genus are confirmed 
in a number of points. 
The methods in ordinary use for fixing and imbedding fungi 
were employed. The septa between the daughters of the same 
mother cell are single pitted, and a continuous protoplasmic tract 
extends through the receptacle to the tips of the appendages. No 
broad protoplasmic bridges, however, are to be found between the 
cells of the receptacle. The protoplasm which dips into the oppo- 
site lying pits is in reality separated by the thin middle lamella 
which is perforated by one or more minute pores. Only very 
fine strands, plasmodesmen, connect the cells. The septa in the 
appendages are apparently coarsely perforated, so that the cyto- 
plasmic fibrils extend out from the pits in the cells of the recep- 
tacle, and occasionally similar strands are seen leading out from 
the nuclei. Their function has not been determined except that 
“Cytology of the Laboulbeniales, Ann. Bot. 25: 649-654. Jl. 1911: The 
cytology of Laboulbenia chaetophora and L. Gyrinidarum. Ann. Bot. 26: 
325-355- 
