The Botany of Iceland - 01.12.1932, Síða 30

478
IJOUL LARSEN
107. M. empetricola Rostrup, Isl. Svampe 1903, p. 306.
Hof in Hörgardalur [O. D.]. — On decorticated stems of Empetrum
n ig r u m.
108. M. Empetri (Fuckel) Saccardo, Syll. fung. II, 171.
Hestahraun in Þorvaldsdalur [O. DJ; Reykjahlíð near Mvvatn [P. L.].
— On withered but still attached leaves of Empetrum nigrum.
109. M. Angelicae Rostrup, Isl. Svampe 1903, p. 306.
Grímstaðir near Mývatn [O. D.]; the island of Sluttnes in Myvatn
[P. L.]. —On dead stems of Angelica silvestris and Archangelica
officinalis.
Didijmella Saccardo.
110. D. proximella (Karsten) Saccardo, Syll. fung. I, p. 558.
Sphaerella proximella Karsten, Mycologia Fennica II, p. 177.
Hörgardalur [0. D.]. — On dead leaves of Carex capillaris.
111. D. inconspicua Johanson, Svampar frán Isl. 1884, p. 167.
Eskifjörður [Strömfelt]. — On dead leaves of Saxifraga oppo-
sitifolia.
Hypocreaceae.
Nectria Fries.
112. N. coccinea (Persoon) I'ries, Sum. Veg. Scand., p. 368.
Sphaeria coccinea Persoon, Synops. meth. fung., p. 49.
Hálsskógur [O. D.]. — On birch-wood.
113. N. Peziza (Tode) Fries, Sum. Veg. Scand., p. 388.
Sphaeria Peziz.a Tode, Fungi Mecklenburgenses selecti II, p. 46.
Þingvellir [P. L.]. — On dead branches of Betula pubesccns.
114. N. Coryli Fuckel, Ascm. N. 860, Hedwigia, XXII, p. 54.
In Reykjavík in gardens and in the grounds of the experimental
station. — On dead branches of Salix phylicifolia.
The darkred, spherical, but soon crateriformly depressed perithecia
are gatbered in clusters which break through the periderm. Asci clavate
70—90>" 10 ii, as a rule with numerotis small (5—7X 1 — 1 .#/*), cylindrical,
curvcd, clear sporidia; but other asci occur, witli 8 2-cellcd clcar asco-
spores, lanceolate, with no constriction at the septum, straight or slightly
curvcd 10 — 14X2 5—3.8/1, often with a cylindrical appcndagc 5—6X1 /j,
which is obstrictcd and gradually forms the above-mentioned sporidia.
(Cf. Winter, Gymnoasceen und Pyrcnomyceten, p. 114).