de 
1909. No. 9. FUNGI (MICROMYCETES) COLLECT. IN ARCT. NORTH AMERICA. 7 
Mycosphaerella Wichuriana (ScHroEr. 1881) JoHans. (85). Sacc. I, 
pag. 530- 
Perith. 60—75 u diam., asc. 25—36 u X 14—18 u, sp. 13—16 u 
X 3 
On withering leaves of Carex membranopacta & misandra "is 05, 
C. rupestris Aug. 05, C. salina var. subspathacea /; 04, Dupontia 
Fisheri ®/, 04, Festuca ovina subsp. brevifolia 5/ 05. 
Area: N. (Tromsø, SCHROET. 88. Dovre, BLYTT 91), Su. (SCHROET. 81), 
Fær., Isl., Gr., Els., Al. 
Didymella hyperborea (Karst.). Sacc. I, pag. 551. Syn.: Sphaeria 
hyperborea K. (72). 
Ascis cylindraceis 80—100 u X 9 u. Sporidiis monostichis, sub- 
rhomboideis, medio septatis, hyalinis, 16—18 u X 7—8 u (look tab. I, 
figs. 7 and 11). 
On leaves of Cassiope tetragona 3; 04. 
Area: N., Spitsb. (TH. M. Fries legit !/; 1868), Gr., Labrador 
(ScHROET. 88). 
Venturia chlorospora (Ces.) Karst. Sacc. I, pag. 586. 
Ascis 48—52 u X 14 u; sporidiis 18 u X 6—7 u, I septatis, primo 
chlorino-hyalinis demum rubro-fuscis. 
On dead leaves of Salix arctica var. Browmi */s 05. Sal. reticulata 
5/8 05. 
Area: Finl., Su. (Umeå, Vreucer), N. (Tromsø, Rostrup 86), D., Isl., 
Gr. Els. 
Didymosphaeria Dryadis (Fucx.) Bert. & Vocr. Sacc. IX, 
pag. 733. Syn.: Pleospora Dryadis Fuck. (72), non Pleospora Dryadis 
(Stars.). Sacc. IX, pag. 892. Icon: Oups. (85), tab. II, fig. 6. Fuck. (72), 
tab. I, fig. 4. 
Ascis crasse tunicatis 100—120 u X 36—40 u, sporidiis 28—32 u 
x 12—16 u strato hyalino obvolutis. 
Epiphyllous on leaves of Dryas integrifolia */; 1905. 
Area: Gr. (but not Nov. Seml. as mentioned by Bert. & Vocı., 
pag. 114, Sacc. IX, pag. 733 and Sacc. XII, pag. 201). 
Leptosphaeria caricinella Karsten (72). Sacc. Il, pag. 65. 
Icon: BERLESE, vol. I, tab. LVI. 
Peritheciis 120—200 u diam.; ascis ovato-oblongis, crassiusculis, breve 
stipitatis, paraphysatis, 52—72 u X 20—24 u; sporidiis conglobatis, 
