Fróðskaparrit - 01.01.1992, Blaðsíða 101

THE LICHENS OF THE FAROES
105
showed distinct apical germ-pores, fig. 3.
The other specimens cited below have the
same type of ascospores, the perithecia are
semi-immersed, and a superficial myceli-
um is not seen.
The present species resembles Synapto-
spora tartaricola (Nyl. ex Leighton) Cain
in many respects. Synaptospora tartaricola
was described from the Bri-tish Isles,
Wales. It was found on Ochrolechia
tartarea. Hughes 1951 (51) studied a col-
lection in K which bears a date different
from the date given in the original descrip-
tion, while Matzer & Hafellner 1990 (54)
studied a collection in H-Nyl, probably the
same as the collection seen by Nylander.
Both claime to have studied the type collec-
tion. Leighton 1870 (53)) says that
Nylander, after studying the species, asked
him (Leighton) to figure and describe it
under the name Sphæria tartaricola, Nyl.
Although Nylander decided the name, the
description was made by Leighton, and the
type species is the collection Leighton used
for figuring and description, and that is
probably the collection in K, and not that in
H-Nyl. The two collections are not from the
same locality and are collected on different
days.
This may be important, as Leighton’s
and Hughes’ descriptions in some respects
are different from Matzer & Hafellner’s.
The English descriptions says that the
species is sitting in the interstices of the
host areoles, and never on the surface, that
it has a supercial mycelium of dark hyphae,
and unbranched paraphyses. Leighton said
the ascospores were simple, while Hugh-
es, studying the type found some spores
were divided by an oblique septum. The
ascospores also tend to stick together in
groups of 2-4. The ascospores have not
been reported to have germpores. The
species was later reported on Placopsis gel-
ida, and this collection should be studied
again.
Roselliniopsis Matzer & Hafellner is
characterized by mostly septate, sub-glo-
bose ascospores with germ-pores at the
ends.
A subiculum is not seen in the Faroese
material, the perithecia are semi-immersed,
the ascospores are subspherical, with
germpores at both ends. The species is
therefore referred to Roselliniopsis in spite
of the absence of spore-septa. In case it
should be identical to Leighton’s Sphæria
tartaricola, his name takes precedens.
Other specimens seen: Leynavatn, on
cephalodia of Placopsis gelida, VA 85329.
Tórshavn, on Placopsis gelida, GD.
*Sagiolechia rhexoblephara (Nyl.)
Zahlbr. On turf. Oknadalur, VA 85504,
Sornfelli, VA 85861.
*Schaereria cinereorufa (Schaerer) Th.
Fr. Slættaratindur, S-side, 700 m, GD.
*S. tenebrosa (Flotow) Hertel & Poelt.
Tórshavn, GD.
*Sclerococcum sphaerale (Ach.) Tw.
Lichenicolous fungus. On Pertusaria
co-rallina, Toftavatn, SS 6331-5; Slætt-
aratindur, GD; P. dactylina, Slættaratin-
dur, GD; P. leucosora, Somfelli 675 m,
VA 851443; P. lactea, Hestur, VA
851686; Pertusaria sp., Hoyvík, VA
851520; Leirvík, VA 69690. (1:
Spilomium sp.).