Fungi, Ascomycetes, Ustilaginales, Uredinales . th it by meansof pores (fig. j6 b). Additional nuclei pass into it from both the stalk andterminal cells, and Welsford has observed their fusion in pairs in theoogonium. The fusion nuclei pass into the ascogenous hyphae. The asciare large and produce each eight spores which are violet or brownish incolour; the epispore is characteristically sculptured at maturity. There areeight chromosomes in the first division in the ascus, and four in the secondand third (Dangeard (fig. 13), Fraser and Brooks). In Ascobolus glaber the archicarp is larger and m
Fungi, Ascomycetes, Ustilaginales, Uredinales . th it by meansof pores (fig. j6 b). Additional nuclei pass into it from both the stalk andterminal cells, and Welsford has observed their fusion in pairs in theoogonium. The fusion nuclei pass into the ascogenous hyphae. The asciare large and produce each eight spores which are violet or brownish incolour; the epispore is characteristically sculptured at maturity. There areeight chromosomes in the first division in the ascus, and four in the secondand third (Dangeard (fig. 13), Fraser and Brooks). In Ascobolus glaber the archicarp is larger and more twisted than inA. furfuraeeus, and consists of sometwenty or thirty cells from one or moreof which the ascogenous hyphae developI 1 tatigeard). In Ascobolus Winteri, a form occur-ring on goose dung, and apparentlylimited to this habitat, the archicarp(fig. jj), as described by Dodge, con-sists of three parts, a stalk of two orthree cells, a series of larger, centralcells, which give rise to the ascogenoushyphae, and a terminal row of three. Iig. 77. Ascobolus Winteri Rehm.; archi-carp, x 10S0 ; after Dodge. n8 DISCOMYCETES [CH.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectfungi, bookyear1922
