1909. No. 9. FUNGI (MICROMYCETES) COLLECT. IN ARCT. NORTH AMERICA. 15 
Hendersonia Stefansonii Rostrur (03, pag. 320). Sacc. XVIII, 
pag. 365- 
Sporulis atrofuscis, 20 u X 7 u, 3-septatis. 
Carex rupestris. Aug. 05. 
Area: Isl. (but not Denmark as Sacc. XVIII notes). 
Marssonina obscura (Rome) P. Macnus. Sacc. X, pag. 478. 
Conidiis elongato-piriformibus, curvulis, protoplasmate granuloso farctis, 
hyalinis, bilocularibus, loculo inferioro minore quam superiore, basi con- 
tracto, 25—28 u X 5—8 u (look fig. 15). 
On leaves of Salix sp. July 1904. 
Area: D., Su., Finl. 
