pdf 25 MB - BSBI Archive

50 NEW BRITISH LICHENS.
Oa serpentine rocks of the Klioil, in Braemar. July, 1865. This
species was first distinguished as such by the late Admiral Jones,
was subsequently gathered by Mr. Can-oil, on Mangerton, in Ireland,
and last autumn was again found by me in pretty fair quantity on the
Khoil, and also sparingly on schistose boulders in Glen Callater. Its
systematic place is intermediate between the preceding and L.theiodea,
Sommerf., which may also occur in the Grampians,
7. L. postuvia,'^\\.; thallus greyish, thin, evanescent; apothecia
black, minute, plane, margined, concolorous within ; spores 6-8 in
thecae colourless or brownish, elliptical-oblong, 3-septate, 0-015-16
mm. long, 0-006-7 mm. thick, epithecium and hypothecium brownish;
hymeneal gelatine deep blue with iodine.
On calcareous stones, in gravelly places near the summit of Mor-
rone, in Braemar. July, 1865. Probably not very rare, though but
a single specimen was then gathered. It approaches very closely to
L. 'petrfBa, Plot., of which it perhaps ranks only as a subspecies.
8. Rlmularia limborina, Nyl. ; thallus greyish, thin, rimulose or
subareolate ; apothecia black or brownish-black, rugulose, somewhat
depresso-convex, roundish, depressed in the centre and radiatcly
fissured, greyish within ;
spores 8 in thecae, colourless, at length brown-
ish, elliptical, simple, 0-018-25 mm. long, 0-011-16 mm. thick,
paraphyses slender, irregular and often branched, perithecium black
above, brownish-black below ; hymeneal gelatine tawny-red with
iodine.
On weathered calcareous stones on Craig Guie, Braemar. August,
1865. This new genus and species is described by Nylander from a
specimen gathered, about the same time as my own, by Ripart in
Haute Yienne. It is allied to the genus Mycoporus, and along with it
may be considered as constituting a separate tribe, which Nylander
proposes to call Peridld. Further research may discover this lichen
elsewhere in mountainous regions.
Besides these I hav^N also met with the following new forms of
other Lichens, viz. :
—
1. Parinella launta, var. subciliala, Nyl., " with the thalline lacinise
and apothecia ciliated at margins."—On limestone rocks of Morrone,
in Braemar, rare. 2. Lecanora varia, var. symmicta, f. livescens, Nyl.,
with small livid apothecia.
—
Oq old trunks of trees, at High Beech,
Epping Forest, sparingly. 3. Ferrucarla c'merella, var. megaspora,