The Botany of Iceland - 01.12.1932, Side 26

474
POUL LARSEN
cluded the two forms under the same species. This, however, is hardly
correct. It is true that the two forms of Leptosphaeria must probably
be placed in the same line of development, but at a greater distance
from one another than is usually allowed in systematic mycology for
fungi that must be included under the same species.
82. L. Marcyensis (Peck) Saccardo, Syll. fung. II, p. 80.
Almannagjá [O. D.]. — On stems of Lycopodium selago.
83. L. arundinacea (Sowerby) Saccardo, Syll. fung. II, p. 62.
Braltifjallgarður [St. St.j. — On dead stems and leaves of Calama-
grostis stricta.
84. L. culmifraga (Fries) Cesati et De Notaris, Syll. fung. II, pp. 75
and 77.
Mývatn (Gronlund); Karlskáli (Strömfelt); Hraunsvatn [O. D.]; Grím-
staðir near Jökulsá á Fjöllum, Sluttnes in Mwatn, Hálsskógur and Rauða-
vatn near Reyrkjavík [P. L.]. — On dead stems and leaves of Poa nemo-
ralis, Poa caesia, Poa alpina, Milium effusum, Deschampsia
caespitosa, Elymus arenarius, Luzula spicata, Kobresia
scirpina.
85. L. microscopica Karsten, Fungi in insulis Spetsbergen, p. 102.
L. culmorum Auerswald and L. typharum (Desmaziéres) Karsten.
Hofsós and Hálsskógur (Strömfelt); Nýjahraun and Sandanesmál
[St. St.]; Hestahraun [O. D.]; Þingvellir [P. L.]. — On Poa alpina, Agro-
stis canina, Puccinellia maritima and Armeria vulgaris f.
elon gata.
86. L. Fuckelii Niessl, Oesterr. botan. Zeitsclir. 1882, No. 11.
Hof [O. D.]; thc plantation at Grund south of Akureyri [P. L.]. — On
Calamagrostis stricta and Deschampsia caespitosa.
87. L. culmicola (Fries) Auerswald, Leipziger Bot. Tausch- Verein
1866, p. 4.
Sphaeria culmicola Fries, Syst. Myc. II, p. 430.
Hofsfjall and Hof [O. D.]; on the island of Slutnes in Mvvatn and
Grund plantation near Akureyri [P. L.]. — On Poa alpina, Anthoxan-
thum odoratum, Deschampsia caespitosa and Milium effusum.
88. L. nigrans (Desmaziéres) Cesati el De Notaris, Schema, p. 61.
Vaglaskógur (O.I).]. — On leaf-sheaths of Agropyrum caninum.
89. L. Elymi n. sp.
The blown sand areas along Jökulsá á Fjölluni between Grímstaðir
and Víðidalur [P. L.]. — On dead Elymus arenarius, springing from
the axis of the inllorcscence.
The gregarious perithecia seated beneath the peridcrm are globose
with a short verruciform oriíice the diameter of which is 180—270/z.