Fungi, Ascomycetes, Ustilaginales, Uredinales . Fig- 77- PucciniaFalcariae; branchedfertile cell of aecidium or primaryuredosorus, x 1200: after Dittschlag. Fig. 1 ;*. Phragmidium Potcntillae-CanadensisDiet.; a. conjugation; /. branched fertilecell; after Christman. 204 PROTOBASIDIOMYCETES [CH. But the fact that these sori are developed on the same mycelium as thespermogonia, the fact that in their fertile cells nuclear association takesplace and the fact that in the formation of the fertile cell a sterile cell is cutoff, all suggest that the true homology is with the aecidium. The mycelium fo
Fungi, Ascomycetes, Ustilaginales, Uredinales . Fig- 77- PucciniaFalcariae; branchedfertile cell of aecidium or primaryuredosorus, x 1200: after Dittschlag. Fig. 1 ;*. Phragmidium Potcntillae-CanadensisDiet.; a. conjugation; /. branched fertilecell; after Christman. 204 PROTOBASIDIOMYCETES [CH. But the fact that these sori are developed on the same mycelium as thespermogonia, the fact that in their fertile cells nuclear association takesplace and the fact that in the formation of the fertile cell a sterile cell is cutoff, all suggest that the true homology is with the aecidium. The mycelium formed by the germination of the aecidiospore grows withrenewed energy. It consists of binucleate cells giving rise to are borne in groups or uredosori (fig. 179) which may be surrounded.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectfungi, bookyear1922
