. .,. ..M^i^'' Fig. 74.—1.^/"':'«« Injlata, ;2, sections of fungus showing rhizoids. nat. size; 3, ascus containing eight spores, also three paraphyses. highly mag. : 4, two free spores showing the thickened ends, highly mag. 3-10 cm. across; asci cylindrical, spores fusiform, 32-36 X 9-10 \i\ paraphyses numerous, tips brown. Professor Hartig has shown that this fungus is parasitic on the roots of young trees, more especially conifers, as Abies peciinata, Tsiiga mertcnsiana, Fseudofsuga doughisii, Picea sikkacnsis, Finns strobus, and Larix europaea. It also attacks the roots of Ca


. .,. ..M^i^'' Fig. 74.—1.^/"':'«« Injlata, ;2, sections of fungus showing rhizoids. nat. size; 3, ascus containing eight spores, also three paraphyses. highly mag. : 4, two free spores showing the thickened ends, highly mag. 3-10 cm. across; asci cylindrical, spores fusiform, 32-36 X 9-10 \i\ paraphyses numerous, tips brown. Professor Hartig has shown that this fungus is parasitic on the roots of young trees, more especially conifers, as Abies peciinata, Tsiiga mertcnsiana, Fseudofsuga doughisii, Picea sikkacnsis, Finns strobus, and Larix europaea. It also attacks the roots of Castanea vesca. On removing a plant that has


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Keywords: ., bookpublishernewyorkmacmillan, booksubjectplantdis, bookyear1910