lxiv
Journal of Proceedings.
view that cystidia are barren conditions of the ordinary spore-bearing
structures or basidia) are more developed in C, aratus than in any other
species yet examined, an illustration is here given, for the loan of which
we are indebted to the courtesy of the Editor of the ' Gardeners'
Chronicle.' The ordinary cells of the plant are seen at the base of the
figure—a basidium with its four spores on the right, and two of the
gigantic cells, termed cystidia, occupy the body of the illustration. It is
a curious fact that all the cystidia in the specimen examined grew on the
gills close to the insertion of the stem, and none were to be found towards
the edge of the cap; they may have dropped to the ground from this
part of the plant with the falling spores.
Cystidia of Coprinus aratus.
The other classes of Cryptogamia were attended to by Dr. Braithwaite
and Mr. E. M. Holmes. We have no report from the former gentleman,
but Mr. E. M. Holmes has furnished the Secretary with the following lists
of Lichens, Mosses and Scale-Mosses met with during the day, and has
kindly deposited the specimens on which the lists are founded in the
Club's Museum for future reference. The area of collecting was in the