. Fici. Ii~.—Exoaicm poli/sporus on Ac(r tartaricum from Sweden. The attacked leaf Hhows pule spots with brown centres. The former result frmii the To/>ltriita, and .ire covered liy a white coating; of asci; the brown Mjiots are produced by other fungi which grow on the spots already killed. I nat. .size. (v. Tubeuf del.) Jl Carpoasci. {Ascomycetes loith SporocurjL/s.) The asci of the Carpoasci. are not formed directly on the mycelium, but from a special part of it, which becomes more or less enclosed in another non-ascogenous portion. From these two portions of the mycelium a sporocarp is
. Fici. Ii~.—Exoaicm poli/sporus on Ac(r tartaricum from Sweden. The attacked leaf Hhows pule spots with brown centres. The former result frmii the To/>ltriita, and .ire covered liy a white coating; of asci; the brown Mjiots are produced by other fungi which grow on the spots already killed. I nat. .size. (v. Tubeuf del.) Jl Carpoasci. {Ascomycetes loith SporocurjL/s.) The asci of the Carpoasci. are not formed directly on the mycelium, but from a special part of it, which becomes more or less enclosed in another non-ascogenous portion. From these two portions of the mycelium a sporocarp is formed, in which we can distinguish three distinct constituents: (a) the envelope containing (b) the paraphyses and (c) the asci. Amongst the Gyranoasci the envelope, if present, is never more than a loose hyphal tissue, but in the Carpoasci both paraphyses and envelope are present, the latter with char-, acteristics distinctive of each species. The sporocarps of the lower Carpoasci are completely closed structures containing only one or a few asci; those of the higher forms, however,
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherl, booksubjectfungi
