. Fio. 198.âMelampsora betulina. Teleutospore-sorus, with many of the sjiores producing promycelia and sporidia (s). r, Mycelium ; p, parenchyma ; c, portion of ruptured epidermis. (After Tulasne.) succeeded in re-infecting Bctula alha from Cacoma laricis. Rostrup obtained Cacoma mereurialis by infecting Mercurialis with Mel. trcmulae; yet this may have happened because two different species of occurred on the aspen leaves. Klebahn ^ was successful in infesting Popvlvs tremtda with Cacoma laricis but did not succeed with the birch. 1R. Hartig, AUei/em. Forst. u. Jagd-zeittmg, 1885,

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. Fio. 198.âMelampsora betulina. Teleutospore-sorus, with many of the sjiores producing promycelia and sporidia (s). r, Mycelium ; p, parenchyma ; c, portion of ruptured epidermis. (After Tulasne.) succeeded in re-infecting Bctula alha from Cacoma laricis. Rostrup obtained Cacoma mereurialis by infecting Mercurialis with Mel. trcmulae; yet this may have happened because two different species of occurred on the aspen leaves. Klebahn ^ was successful in infesting Popvlvs tremtda with Cacoma laricis but did not succeed with the birch. 1R. Hartig, AUei/em. Forst. u. Jagd-zeittmg, 1885, -Plowright, " Impfversiiche m. Rostpilzen," Zeitschrifl f. PJlanzenkrankheiten, 391. â¢â 'Klebahn, Zeitxchrift f. PflanzenkranUmtei}, 1894.

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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherl, booksubjectfungi