Fróðskaparrit - 01.01.1992, Side 87

THE LICHENS OF THE FAROES
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Cavem interius pseudosclerenchymate pal-
lido vestitum. Asci anguste clavati, 40 x
12pm magni vel ultra (maturi nulli visi),
octospori. Ascosporae late ellipsoides,
1-septatae, 10-12 x 6.5-7.5 pm magnae,
membranis cir-citer 0.5 |im crassis, verru-
cosis, fuscis.
Lichenicolous pyrenomycete. Perithecia
immersed to semi-immersed, dispersed,
black, 100-150 pm diam. Excipulum ca. 15
pm thick, of about 3 layers of pseudo-
parenchymatic, brown cells, thicker around
the ostiole. Cavity lined by pale pseu-
dosclerenchymatic cells. Asci narrowly
clavate, at least 40 x 12 pm (ripe asci not
seen), 8-spored. Ascospores broadly ellip-
soid, 1-septate, with spore-wall c. 0.5 pm
thick, verrucose, brown, 10-12 x 6.5-7.5
|0m.
Holotypus: Faroe Islands, Suðuroy, lake
Ryskivatn, SE-shore, on Aspicilia lacus-
tris, 17 June 1985, Alstrup 851679 (C).
The present species differs from all other
known species of Endococcus in having
verrucose ascospores. The spore shape and
size is close to E. propinquus (Triebel
1989,56), a species not known on Aspicilia,
but that species also has big-ger perithecia
and thicker excipulum. The species is only
known from the holotype.
*Ephebe hispidula (Ach.) Horwood.
Common on rocks (5 coll.). (Probably
included in E. pubescens: 1,2,33).
E. lanata (L.) Vainio. Common on moist
rocks, 15 coll. (5; 11: Bangia atrovirens;
1,2,33: E. pubescens p.p.).
Epilichen scabrosus (Ach.) Clem. ex
Hafellner. Very common on Baeomyces
rufus, 7 coll. (7; 2: Karschia s.).
*Farnoldia jurana (Schaerer) Hertel.
Sandur, concrete, VA 851606.
*Fuscidea cyathoides (Ach.) V. Wirth &
Vezda. Gjógv, on a boulder; Tórshavn,
stone wall and exposed rocks, all GD.
F. gothoburgensis (H. Magn.) V. Wirth &
Vezda. Hoyvík, VA 851522, 851527 (4:
Lecidea g.).
*F. kochiana (Hepp) V. Wirth & Vðzda. On
rocks. Dam E of Vestmanna, VA 85-895;
Hoyvík, VA 851308; Víkarbyrgi, VA
851469; riverbed N of Leynavatn, VA
851622.
*F. oculata Oberh. & V. Wirth. On rock.
Slættaratindur, VA 851275. Tórshavn,
GD.
*F. tenebrica (Nyl.) V. Wirth & Vgzda.
Hoyvík, on rock, VA 85718.
*Guignaria psoromoides (Borrer)
Keissler. Lichenicolous fungus. On
Aspicilia lacustris, Sandoy, 1867,
Rostrup.
Gyalecta foveolaris (Ach.) Schaerer. In
maritime grassland with Silene acaulis,
Thymus drucei, Plantago maritima,
Armeria maritima. S-end of Koltur, VA
85386; í Botni, VA 85693. (1,2,33).
*G. jenensis (Batsch) Zahlbr. On tuff-lay-
ers in cliffs. At tunnel E of Leynavatn,
VA 85337; at waterfall N of Leynavatn,
VA 851565; Ljósá, at waterfall, VA
85612.
*Haematomma ochroleucum (Necker)
Laundon var. porphyrium (Pers.)
Laundon. On vertical, north-facing rocks
and free-lying boulders. Toftavatn, VA
85824, 85843, GD.; W of Skopun, VA