Fungi, Ascomycetes, Ustilaginales, Uredinales . Fig. 3. Humaria rutilans (Fr.) Sacc; hymenial layershowing asci and paraphyses in various stages of develop-ment, x 400. I.] ASCOMVCETES 37 conditions of moderate dryness, such as occur out of doors on a fine autumnday, by shaking the fructifications, or even by currents of air set up bywalking past them. It can be initiated, as de Bary pointed out, when ripe.

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Keywords: ., bookcentury1900, bookdecade1920, booksubjectfungi, bookyear1922