The Botany of Iceland - 01.12.1932, Qupperneq 24

472
POUL LARSEN
P. Junci Passerini et Beltrani var. Luzulae (Feltgen).
P. spinosella Rehm var. Luzulae Feltgen.
In a birch copse at Þingvellir [P. L.]. — On withered stems of Luzula
sp ica ta.
Asci: 100 X 26—28 /u, 8-spored. The spores: 28 X 10 /u, 7 transverse
septa, one longitudinal septum through all the joints except the end cells.
75. P. Elynae (Rabenhorst) Cesati et De Notaris, Schema di classifi-
cazione degli Sferiacei Italici aschigeri (Comment. Soc. crittog. Ital. vol. 1),
p. 44.
Clathrospora Elynae Rabenhorst, Hedwigia I, Taf. XX, flg. 3.
Víðidalur near Jökulsá á Fjöllum, bog in Ofjordsdal [P. L.]; Gásir
and Hof [0. D.]. — On withered stems of Juncus balticus and J.
triglumis.
76. P. deflectens Karsten, Fungi in insulis Spetsbergen, p. 99.
The plantation near Grund south of Akureyri [P. L.]. Fagriskógur
[O. D.]. — On dead stems of Vicia cracca and Rhodiola rosea.
77. P. alpina Rostrup, Isl. Svampe 1885, p. 7.
Kalmanstúnga (Gronlund). — On dead stems ofViscaria alpina.
78. P. Drabae Schroeter, Ein Beitrag zur Kenntnis der nordischen
Pilze, p. 15. Jahresb. d. schles. Ges. 1881.
Vaðlaheiði [Strömfelt]; Hofsfjall, Hallgilsstaðafjall [O. D.]. — On Draba
nivalis and Draba hirta.
79. P. vulgaris Niessl, Notiz. ub. Pyrenom., p. 27.
Seyðisfjörður [Feddersen], Krossastaðagil and Hof [0. D.]; in littoral,
meadows and Hrafnagjá on Thingvellir at Akureyri [P. L.]. — On Poten-
tilla maculata, Oxyria digyna, Thymus serpyllum, Hieracium
islandicum and Tofieldia borealis.
80. P. herbarum (Persoonj Rabenhorst, Herb. mycol. Edit. II, p. 547.
Sphaeria herbarum Persoon, Synopsis methodica fungorum, p. 79.
Of common occurrence throughout the country and found on withered
stems, leaves, and fruits of a number of plants, both dicotyledons and
monocotyledons: Silene maritima, Cerastium alpinum, C. vulga-
tum, Alsine verna, A. biflora, A. rubella, Draba nivalis, Arabis
petraea Cardamine bellidifolia, Rumex acetosella, Dryas,
Potenlilla maculata, Thalictrum alpinum, Linum catharti-
cum, Viola tricolor, Saxifraga caespitosa, S. oppositifolia,
Statice armcria, Thymus serpyllum, Campanula uniflora,
Galium silvestre, Cirsium arvense, Erigeron alpinum, Hiera-
ciumsp., Tofieldia borealis. Elymus arenarius, Anthoxanthum
odoratum, Agrostis sp.
Though this species is very widespread in Iceland and occurs on