The Botany of Iceland - 01.12.1932, Page 56

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POUL LARSEN
Þingvellir [P. L.]. — On bark and wood of dead branches of Betula
pubescens.
320. 0. auricolor Saccardo, Syll. fung. VIII, p. 625.
Hrafnagjá on Þingvellir [P. L.]. — On wood of Betula pubescens.
Calloria Fries.
321. C. erythrostigmoides Behm, Rabh. Krypt. Flora III, p. 464.
Hallgilsstaðafjall [O. D.]. — On dead leaves of Cerastium alpinum.
322. C. minutissima Rostrup, Gronl. Svampe 1888, p. 537.
Skriða in Hörgárdalur [0. D.]. — On Archangelica officinalis.
Helotiaceae.
Chlorosplenium Fries.
323. C. aeruginosum (Oeder) De Notaris.
Helvella aeruginosnm Oeder, Flora danica, tab. 534, fig. 2; Vahl, Fiora
danica, tab. 1260, flg. 1.
Recorded in Zoéga’s »Flora Islandica*.
Sclerotinia Fuckel.
324. S. Vahliana Rostrup, Gronl. Svampe 1891, p. 607.
Möðruvellir [St. St.]; Framnes near DVrafjörður (Ostenfeld); Norð-
túnga [P. L.]. — On tufts of Carex and Eriophorum on swampy ground.
The peasized sclerotia are often seated in the axils of tlie leaves, covered
by the leaf-sheaths.
325. S. Fuckeliana (De Bary) Fuckel, Symbolae, p. 330.
Peziza Fuckeliana De Bary, Morph. Phys. der Pilze, p. 30, fig. 12, p. 238.
The sclerotia and conidia (Botrytis cinerea) are of extremely com-
mon occurrence throughout the country on many different host plants,
as: Rumex domesticus, Polygonuin aviculare, Viscaria alpina,
Sedum villosum, Saxifraga nivalis, Geranium silvaticum,
Geum rivale, Alchemilla alpina, Sibbaldia procumbens, Gen-
tiana campestris, Pedicularis flammea, Hieracium sp.. Gnapha-
lium norvegicum.
Dasyscypha Fries.
326. D. diminuta (Roberge et Desmaziéres) Saccardo, Syll. fung. VIII,
p. 449.
Peziza diminuta Roberge et Desmaziéres, Annales sci. nat. 1847, vol.VII,
p. 185.
Hanastaðir (N. Iceland) [O. D.]. — On dead stems of Juncus bal-
ticus.