The Americana; a universal reference library, comprising the arts and sciences, literature, history, biography, geography, commerce, etc., of the world . Fig. 10 Fig. Fis. 10.— Empusa musca; filaments from body of fly. Highly II.— A. several spore-sacs (asci) in different stages of development; E, a mature spore-sac. Highly magnified. Sac Fungi (Class Ascomycetca).— The dis-tinguishing mark of the plants of this class isthat the spores which occur in their fruits de-velop in certain end cells and remain enclosedwithin the cell wall until matured. (Fig. II.)These spore-containing
The Americana; a universal reference library, comprising the arts and sciences, literature, history, biography, geography, commerce, etc., of the world . Fig. 10 Fig. Fis. 10.— Empusa musca; filaments from body of fly. Highly II.— A. several spore-sacs (asci) in different stages of development; E, a mature spore-sac. Highly magnified. Sac Fungi (Class Ascomycetca).— The dis-tinguishing mark of the plants of this class isthat the spores which occur in their fruits de-velop in certain end cells and remain enclosedwithin the cell wall until matured. (Fig. II.)These spore-containing cells have been aptlylikened to sacs (Latin, asci; singular, ascus) andfrom this we derive the name of the class. There are more species of sac fungi than ofall other kinds. They range in size from veryminute to many inches in extent. They in-clude some of the most harmfully parasitic plantsas well as many which live saprophytically uponrefuse organic matter. Among the many fami-lies (more than 40) in this class, the followingmay be noticed: Pozidcry Mildczvs {Erysiphacecc) are to beregarded as primitive sac fungi, but little re-.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectencyclo, bookyear1908
