pdf 25 MB - BSBI Archive

NEW BRITISH LICHEXS. 233
Oil the decaying wood of an old holly near Lyndhurst in the New
Forest. April, 1S69. Very rare and local, and found only very
sparingly on a single tree, Nylander observes that it is distinguished
from L. myriocarpa, De Cand., by the form of the paraphyses and the
reaction with iodine, and from L. adpressa, Hepp., by the paraphyses
and the colour of the spores and hypothecium.
3. L. deduda, Nyl. in litt. ; thallus obscurely subgelatinous, but
scarcely proper (as traces of a greenish effuse thallus are here and
there visible) ; apothecia blackish, small, usually margined ; spores 8
in thecse, colourless or faintly blackish, elliptical or oblong, 3-septate,
0-010-13 mm. long, 0-0035-000-i5 mm. thick ; paraphyses not
discrete, thiu layer of the apothecia reddish (hypothecium more
obscure in the middle) ; hymeneal gelatine blue, then wine-red with
iodine.
On decaying felled stumps of Holly in the New Forest, near to
Brockenhiu-st. April, 1869. Very rare, and perhaps but a variety
of L. siibturgidula, Nyl., from. which it differs chiefly by the apothecia
being black and margined.
4. L. spododes, Nyl. in litt. ; thallus greenish-yellow, thin, grar.u-
lose, somewhat evanescent; apothecia cinereous or sordid pale, small,
convex, immarginate ; spores simple, oblong, 0-010-14 mm. long,
0-0025-0-0040 mm. thick; hymeneal gelatine blue, and then wine-
red with iodine.
On old pales near Lyndhurst in the New Forest. April, 1869.
Eare and local. It is closely allied to L. den'ujrata, Frs., of wdiich
probably it is to be regarded as a subspecies, though externally it is
readily distinguished from this.
5. Eudocarpon Cromhiei, Mudd, Brit. Clad. p. 36 ; parasitic on
thallus of ThamnoUa vermicular is ; apothecia verrucaeform, lateral
minute, at length emersed, confluent, each verruca containing many
nuclei ; ostiola very minute, punctiform, depressed, pale reddish-
brown ; nucleus subgelatinous in yellowish-brown subceraceous tunic
paraphyses slender, discrete ; spores 8 in thecse, very minute, ellip-
tical, unilocular, occasionally obscurely bilocidar, hyaline.
Apparently not very rare on the higlier Grampians of Scotland, as
Ben Lawers, Morrone, Ben-na-boord, on which last mountain it was
first discovered by me in x\ugust, 1862. Though regarded by Mudd,
1. c, as a true lichen, Nylander considers it as a fiinrjillus, and indeed
VOL. VII. [august 1, 18G9.] s
;