FUNGI OF ICELAND 491 
This species has nothing else in common with species of Pleospora 
than the many-celled spores. It belongs to the genus Pleosphaerulina. Cp. 
the herbarium specimen in Rostrup’s collection of Icelandic Fungi in the 
Botanical Museum of Copenhagen. 
Physalospora Niessl. 
223. P. montana Saccardo, Michelia II, p. 378. 
Hallormstadir [P.L.]. — On dead leaves of Trisetum spicatum. 
224. P. Festucae (Libert) Saccardo, Michelia I, p. 27. 
Kollafjardarnes. — On Festuca rubra. 
225. P. Potentillae Rostrup, Gronl. Syampe 1888, p. 548. 
Hof [0.D]. — On Potentilla maculata. 
Massariaceae. 
Massarina Saccardo. 
226. M. Dryadis Rostrup, Gronl. 
Svampe 1888, p. 560. 
Hörgärdalur [O. D.), Egilsstadir in 
Vopnafjördur (St. St... — On dead leaves 
of Dryas octopetala. 
Massaria De Notaris. 
227. M. Thalictri (Rostrup) Lind, 
Micromyceter fraAreskutan,Svensk 
Botanisk Tidskrift, 1928, p. 67. 
Lizonia Thalictri Rostrup, Gronl. 
Svampe 1888. 
Fig. 2. 
Reykjahlid near Myvatn [P. L.]. — Massaria Thalieles: 
On dead stems of Thalictrum alpi- „ Ascus with immature spores X 333. 
num. b. 2 mature spores X 333 
Gnomoniaceae. 
Gnomonia Cesati et De Notaris. 
228. G. campylostyla Auerswald, Mycol. europ., Heft V./VL, p. 25. 
Gullfoss near Hvitä (Feddersen), Nordttinga [P. L.]. — On dead leaves 
of Betula nana and B, pubescens. 
229. G. setacea (Persoon) Cesati et De Notaris, Schema sferiac. 
p. 58. 
Sphaeria setacea Persoon, Usteri, Ann. d. Bot. St. 11, p. 25. 
