. The fungi which cause plant disease . Plant diseases; Fungi. 146 THE FUNGI WHICH CAUSE PLANT DISEASE orange-red with a pale margin; asci 109 x fi; spores 19-20 x |i, hyaline. Hymenoscypha Fries (p. 136) This genus of over two hundred species is mainly saprophjrtic, one species only in its conidial stage being parasitic. Ascoma sessile or short-stipitate, usually smooth; asci cylindric to globoid, 8-spored; spores elliptic, blunt to pointed, hyaline; paraphyses filamentose, apically enlarged, hyaline. H. tumulenta P. & ; in its conidial stage as Endoconidium, affects
. The fungi which cause plant disease . Plant diseases; Fungi. 146 THE FUNGI WHICH CAUSE PLANT DISEASE orange-red with a pale margin; asci 109 x fi; spores 19-20 x |i, hyaline. Hymenoscypha Fries (p. 136) This genus of over two hundred species is mainly saprophjrtic, one species only in its conidial stage being parasitic. Ascoma sessile or short-stipitate, usually smooth; asci cylindric to globoid, 8-spored; spores elliptic, blunt to pointed, hyaline; paraphyses filamentose, apically enlarged, hyaline. H. tumulenta P. & ; in its conidial stage as Endoconidium, affects rye grain causing it to shrivel and assume poisonous properties. The conidia are borne en- dogenously in the terminal branches of the hyphse and escape through an opening in the end of the Fig. 103.—^Hymenoscy- pha. J, habit sketch; K, ascus and paraphy- ses. After Rehm. Mollisiaceae (p. 134) Ascocarp free from the first or simken in the substratum and later erumpent, at first more or less globose, becoming flattened; asci 8-spored, opening by a slit; spores hyaline, 1 to many-celled; paraphyses slender. Above four hundred species. Key to Genera of Mollisiacese Ascocarp fleshy, waxy, rarely membranous. I. Mollisiese. Ascocarps not sunken in the substratum Ascocarps on a visible, often radiate mycelimn Spores elongate, often fusiform, 1-celled 1. Tapesia. Spores filiform, many-celled 2. Tiichobelonium. Ascocarps not seated on a visible my- celium Spores 1-celled Spores spherical 3. Mollisiella. Spores elongate 4. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Stevens, Frank Lincoln, 1871-1934. New York : Macmillan
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfungi, bookyear1913
