157 
PERIDERMIUM. 
The following species of Peridermium are enumerated in an 
article published by M. C. Cooke in the “Indian Forester” (Vol.iii., 
part 2) : — 
Peridermium corticolum, Link. 
Peridermium acAcolum, Link. 
Peridermium orientalis^ Cooke. 
Peridermium columnare, A. & S. 
Peridermium Thomsoni, Berk. 
Peridermium ahietinum, A. & S., including P. deco^ 
lorans, Peck. 
Peridermium Ephedri, Cooke. 
Peridermium halsameum, Peck. 
This is presumed to include all the species hitherto described. 
HEPATIC^ BRITANNIC^ EXSICCATAE. 
We are happy to learn that dried specimens are being prepared 
for publication of the British Hepatica?, by Dr. Carrington and 
W. H. Pearson, of which an advertisement appears on the cover of 
this journal. It is very many years since Mclvor published his 
specimens of Hepaticae, and hence the present will be very welcome, 
especially when authenticated by such an efficient authority as Dr. 
Carrington. The group is a small one, and therefore the whole 
w'ill be inexpensive. The first fasciculus of seventy-five specimens, 
representing sixty species, is promised for fifteen shillings. 
SIMBLUM PILIDIATUM. 
The following corrections should be made in the description at 
p. 119, line 3, for “ adharens,” read “adhaerens;” line 8, for 
“ atroverescente,” read “ atro virescente line 9, for “ nursum,” 
read “ unicum.” A. E. 
CoNGREs International de Botanique et d’ Horticul- 
ture. — This Congress is to be opened in Paris on the 16th 
August, 1878, at the rooms of the Horticultural Society, 84, Rue 
de Crenelle, and one of the subjects proposed for consideration is 
“ The Fecundation in Hymenomycetal and Ascomycetal F'ungi.” 
The Secretary to the Committee is Mons. E. Mer, the secretary of 
the Botanical Society, to whom communications may be addressed 
at 84, Rue de Crenelle, Paris. 
