— 320 — 



441. Diplodiiia Eurhododeiidri Voss. 



Paa Bær af Vaccinium uliginosum;. Hof (D.). 



442. Heiidersonia salicina Sacc. 

 Pilegrene: Tungâ-Foss (Fedd.). 



443. Heiidersonia Caricis Oud. 

 Blade af Carex atrata : Hofsfjall (D.). 



444. Hendersonia Stefanssonii n. sp. 



Peritheciis gregariis, minimis, tectis ; conidiis oblongis, fuscis, 3-septatis, 

 longit. 20 fi, crassit. 6 — 7 fi, 



ln foliis Caricis hyperboreae : Rjettarhöll (St.). 



445. Heiidersonia Jungermanniae Fr. 



Mulâ (D.). 



446. Heiidersonia uredinicola Desm. 



Snyltende paa en Uredo paa Poa pratensis: Akureyri (Strømfelt). 



447. Stagonospora aqua tira Sacc. 



Stængler af Heleocharis palustris'. Hornafjaröareyjar (St.). 



448. Stagonospora islandica n. sp. 



Peritheciis sparsis, vaginicolis, erumpentibus ; conidiis copiosis, exacte 

 cylindraceis, obtusis, 7-septatis, hyalinis, longit. 22 — 24 fjt, crassit. 4—5/^. 

 In vaginis Graminearum: Grimsey (D.). 



449. Stagonospora graminella Sacc. 



Paa Aira caespitosa : Mööruvellir, Hof, Gâsir (D.) ; Poa pratensis : 

 Hof (D.). 



450. Stagonospora Equiseti Fautr. 



Stængler af Equisetum palustre: Ös i Hörgardalur (D.). 



451. Cytosporium Davidssonii n. sp. 



Peritheciis superficialibus, seriato-gregariis, globulosis, atris; conidiis 

 atro-fuscis, ovato-ellipsoideis, irregularibus, 3-septato-muriformibus, longit. 

 9 — 14 /i, crassit. 6 — 10 fi. 



Paa Ved: Gâsir (D.). 



452. Cytosporium betulinum n. sp. 



Peritheciis epixylis, gregariis, globulosis, 0,3—0,5 mm. diam.; conidiis 

 oblongis v. fusiformi-oblongis, 3 — 7-septatis plerumque longitud inaliter divisis, 

 longit. 20 — 40/^, crassit. 9 — 13 //. 



In ligno putrido Betulae: Hålsskogur (D.). 



