33 
NEW OR RARE HYMENOMYCETOUS FUNGI OF THE , 
BRITISH FLORA. 
By Worruineton G. SurrH, Esq. 
(Prates LXXV. AND LXXVI.) 
During the last six or seven years our British cryptogamic flora has 
been enriched by an addition of upwards of a hundred and fifty 
species of Hymenomycetous Fungi (the hymenomycetes forming only a 
fourth part of the whole Order). Most of them are attractive ob- 
jects in consideration of their size, form, and colour, and the reason of 
their having lain so long unrecognized is undoubtedly owing to the 
small number of botanists in this country who make the subject of 
Fungi their special study. This is not a little singular when we con- 
sider the abundance of handsome species which annually crop up in 
our pastures and woodlands,—at a time, too, well suited for botanizing, 
and when most people take their autumnal holiday. 
A considerable number of these hundred and fifty species have 
proved to be quite new to science and were previously undescribed, 
whilst others have been recorded for the first time as natives of this 
country. The following paper records a few new and rare species which 
have not been published elsewhere, with some remarks on the recur- 
rence of other rare species which have been observed before. 
Boletus rubinus, n. sp. (Tab. LXXV., Figs. 1-4). Pileus yellow- 
brown, gibbous, pulvinate, then plane, dry, subtomentose, slightly 
cracked ; ¢ubes wholly carmine, subdecurrent, compound, of a medium 
size ; stem yellow, smeared with crimson, irregular ; flesh vivid yellow, 
perfectly unchangeable ; spores pale umber, ovate, length “00025 in. 
I have but once found this species; at the time of finding (12th 
September, 1866) it was plentiful, by a grassy roadside under trees, 
Caddington Lane, near Dunstable, Bedfordshire. It clearly belongs 
to Group II., Subtomentosi, of Fries, and its place is after B. parasiticus, 
Bull., its nearest ally, from which, however, it differs in many respects, 
a remarkable distinction being apparent in the spores; those of one 
being exactly twice the length of the other. (See Plate LXXV., 
Fig. 4, spores of B. rubinus ; Fig. 8, spores of B. parasiticus, x 700 
iam. 
Boletus fragrans, Vitt. Esculent. This handsome species, which 
VOL. VI. [FEBRUARY 1, 1868.] D 
