FUNGI OF ICELAND 469 
53. P. hispidula (Niessl) Saccardo, Syll. fung. II, p. 287. 
Pleospora hispidula Niessl, Notizen über Pyrenom., p. 32. 
In the plantation at Grund [P.L.). — On withered stems and leaf- 
sheaths of Luzula multiflora. 
54. P. Androsaces (Fuckel) Saccardo, Syll. fung. II, p. 19. 
Pleospora Androsaces Fuckel, Symbolae, Nachtrag II, p. 19. 
Occurs throughout Iceland, in the lowlands as well as in the fell-fields. 
[Strömfelt and P.L.]. — On withered stems and leaves of Cerastium 
alpinum, Draba alpina, Pedicularis flammea, but most fre- 
quently on Silene acaulis. 
55. P. comata (Niessl) Saccardo, Syll. fung. II, p. 286. 
Pleospora comata Niessl, Beiträge zur Kenntniss der Pilze, 1872, 
p. 30. 
Bær in Hrutafjördur (St. St.); Porvaldsdalur, Hallgilstadafjall, Forn- 
hagagil and Hofsfjall (O. D.) — On Alsine biflora, Cerastium alpi- 
num, C. vulgatum and Viscaria alpina. 
56. P. hispida (Niessl) Saccardo, Syll. fung. II, p, 284. 
Pingvellir in Almannagjä [P.L.]. — On withered stems of Arabis 
petraea and Arenaria ciliata. 
57. P. chrysospora (Niessl) Saccardo, Syll. fung. II, p. 173. 
Pleospora chrysospora Niessl, Hedwigia 1880, p. 173. 
Grows in all parts of the country on a number of herbaceous plants: 
Equisetum sp., Festuca rubra, Tofieldia borealis, Rumex 
acetosa, Oxyria digyna, Cerastium arcticum, Alsine biflora, 
A.hirta, A. stricta, Arenaria ciliata, Viscaria alpina, Carda- 
mine bellidifolia, Draba incana, Arabis alpina, A. petraea, 
Thalictrum alpinum, Saxifraga caespitosa, S. hypnoides, S. 
rivularis, Sedum annuum, Potentilla maculata, Rubus saxa- 
tilis, Vicia cracca, Plantago maritima, Primula stricta, Rhinan- 
thus minor, Euphrasia latifolia, Bartsia alpina, Veronica 
saxatilis, V. alpina, Gentiana nivalis, G. campestris, Erigeron 
neglectus, Taraxacum vulgare, Hieracium islandica and other 
Hieracium sp. 
58. P. chrysospora (Niessl) Saccardo, var. polaris Karsten, Hedwigia 
1884, p. 38. 
Mountain slopes facing Lagarfljöt near Hallormstadir [P. L.). 
On withered stems, leaves, and sepals of Saxifraga aizoides. 
Diameter of perithecia 200 u. Bristles straight or undulate, 80—90 X 
4—5u. Asci cylindric-clavate with a short broad stalk, 8-spored, 120— 
135 X 32—35 u (p. sporifera). Spores yellowish brown, cylindric-ovate, 
ends obtuse, 7 transverse septa, 1—3 longitudinal septa, the end cells 
having 1, the median cells 3. 8 measurements of the spores produced 
