Archive image from page 17 of Dansk botanisk arkiv (1913-1981). Dansk botanisk arkiv danskbotaniskark02dans Year: 1913-1981 10 Dansk Botanisk Arkiv, Bd. 2. Nr. 1. host-species. In this connection the above statement under E. digitata might be brought to memory, and further that the hitherto known Entorrhiza-species, which seem to be distinctly different, every one is confined to a single host-species. The two species of Entoirhiza growing on Scirpus are both characteristic by having spiral lines on the spore-membrane, in this regard differing from the other species of the genus. As stated ab
Archive image from page 17 of Dansk botanisk arkiv (1913-1981). Dansk botanisk arkiv danskbotaniskark02dans Year: 1913-1981 10 Dansk Botanisk Arkiv, Bd. 2. Nr. 1. host-species. In this connection the above statement under E. digitata might be brought to memory, and further that the hitherto known Entorrhiza-species, which seem to be distinctly different, every one is confined to a single host-species. The two species of Entoirhiza growing on Scirpus are both characteristic by having spiral lines on the spore-membrane, in this regard differing from the other species of the genus. As stated above they are, however, morphologically well separated, a circum- stance, which was likely to be found, partly because the Entor- Fig. 6. a: Bark cells from a root of Scirpus fluitans L., infested by E. Raun- kiæriana sp. n. In one cell is seen a spore of the named fungus, in another numerous bacteria. . b: The bacteria higher magnified. These bacteria were commonly found in our material. r/uza-species upon the whole are strongly specialized to their host- plants, and mainly according to the fact that the host-species in question belong to different subgenera, S. pauciflorus being an Euscirpus, while S. fluitans belongs to Isolepis and even by Link is referred to a particular genus, Eleogiton. Entorrhiza earicicola Ferd. et Wge. sp. n. Aggressu fungi, qui apices radicum tenuium infestat, tumoribus piriformibus vel oblongo-piriformibus, levibus, maximis 3—4 mm. longis et 1—2 mm. latis, albidis oriundis. Sporis in hyphis hyalinis, deliquescentibus, plerumque tortis acrogenis; episporio primum levi, hyalino, indumento gelatinoso instructo, ad maturitatem, contractione strati gelatinosi, subtiliter ruguloso-undulato, dilute flavidulo. Sporis maturis oblongo-ellipsoideis vel protracte obo-
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