— 320 — 



441. lM|il«(liiia Eiirliododeiidri Yoss. 



Paa Baer af Vaccinium uligmoswn: Hof (D.). 



442. Ileiidersonia snlieina Sacc. 

 Pilegrene: Tunga-Foss (Fedd.). 



443. Ileiidersonia Caricis Oud. 

 Blade af Carex atratd : Hofsfjall (D.). 



444. Heudersoiiia Stefaiissouii n. sp. 



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

 longit, 20 fjL, crassit. 6 — 7 fjt. 



In foliis Caricis hi/perboreae : RjettarhoU (St.). 



445. Ileiidersonia Jungermanniae Fr. 



Mula (D.). 



446. Ilendersonia uredinicola Desm. 



Snyltende paa en Uredo paa Poa pratensis: Akureyri (Stromfelt), 



447. Stagonnspora aqnatica Sacc. 



Stffinglei' af Heleocharis palustris: Hornafjar5areyjar (St.). 



448. Stagonospora islaudica n. sp. 



Peritheciis sparsis, vaginicolis, erumpentibus ; conidiis copiosis, exacte 

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

 In vaginis Graminearum : Grimsey (D.). 



449. Stagonospora graminella Sacc. 



Paa Aira caespitosa : MoOruvellir, Hof, Gasir (D.) ; Poa pratensis : 

 Hof (D.). 



450. Stagonospora Equiseti Fautr. 



Stsengler af Equisetum paliistre: Os i Horgardalur (D.). 



451. €ytosj)orium Davidssoiiii n. sp. 



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

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

 9 — 14 fji, crassit. 6 — 10 //. 



Paa Ved: Gasir (D.). 



452. Cytosporium betulimim n. sp. 



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

 oblongis V, fusiformi-oblongis, 3 — 7-septatis plerumque longitudinaliter divisis, 

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



In ligno putrido Betulae: Halsskogur (D.). 



