The Botany of Iceland - 01.12.1932, Blaðsíða 22

470
POUL LARSEN
the following results: 33X15.5, 35X15, 40X16, 32X17, 30 X14, 36X17.5,
35X17, 28X13fí.
59, P. phaeocomoides Saccardo, Syll. fung. II, p. 280.
Grund near Akureyri in a small plantation [P. L.]. — Rumex
acetosa, Vicia cracca, Achillea millefolium.
60. P. abscondita Iíarsten, Hedwigia 1884, p. 37.
In the plantation at Grund [P. L.]. — On Rhinanthus minor.
61* P. coronata (Niessl) Saccardo, Syll. fung. II, p. 283.
Pleospora coronata Niessl, Notizen iiber neue und kritische Pyreno-
myceten, p. 16.
Möðruvellir, Hof [O. 1).]. — On withered stems of Achillea mille-
folium.
Pleospora Rabenhorst.
62. P. straminis Saccardo, Michelia I, 407, Fungi ital. autogr. del.
t. 329.
P. straminis, E. Rostrup Isl. Svampc 1903, p. 308.
Hestahraun [O. D.]. — On Trisetum spicatum.
P. stramiriis is not, however, present on the straws of Trisetum
spicatum, found in the capsule marked Pleospora straminis in the Ice-
landic Ilerbarium at the Botanical Museum of Copenhagen, whereas a
number of Pleospora Karstenii are found on these straws, so it is pos-
sible that there may be a mistake and that Pteospora straminis Sacc.
should, consequentlj', be expunged from the list of Icelandic fungi.
63. P. Karstenii Berlese et Voglino.
Pleospora arctica Karsten, Sacc., Syll.fung.il, p. 171.
Hestahraun [O. D.]. — On dead stems of Deschampsia flexuosa
and Trisetum spicatum.
This species is very closely allied to Pleospora islandica Johanson.
64. P. microspora Niessl, Notiz. iib. Pyrenom., p. 16.
Gásaeyri [O. D.]. — On Elymus arenarius.
65. P. punctiformis Niessl, Notiz. úb. Pyrenom., p. 24.
Skagafjörður [Strömfelt]. — On withered petioles of Agrostis
c a n i n a.
66. P. islandica Johanson, Svampar frán Island, p. 170.
Hólar in N. Iceland [Strömfelt]. In a bog near Hallormstaðir and
at Hálskógur near Akureyri [P. L.]. — On withered straws and leaves of
Poa caesia, Agropyrum caninum and Trisetum spicatum.