. Les champignons qui causent les maladies des plantes . Les maladies des plantes, les champignons. Les champignons qui causent les MALADIES DES PLANTES 549 C. carica S. &AMP ; H/-"' "" Acervuli, brun noir, hémisphérique, devenir nombreux, petits, 85-250 m, 1-12 (ou souvent 0) de long, mince, soies irrégulières qui sont dans l'ensemble, sombre, aiguë, rigide, cloisonnées 2-6 x 22- 106 IX, conidies, régulière, oblongues, obtuses 3.5-6.6 . 8.7-20 ; conidio- phores sveltes, 1-2 x 45;u, hyalines. C'est la cause d'une décomposition de figues dans les États-Unis. Ch. ampelinum. Cav est sur feuilles de vigne. Ch. glceosporioides Penz. Acervuli rares ou peu grégaires, subepi

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. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 549 C. carica S. & H/-"' «» Acervuli brown, becoming black, hemispherical, numerous, small, 85-250 m, bearing 1-12 (or often 0) long, slender, irregular setae which are dark throughout, acute, rigid, septate, 2-6 x 22- 106 IX, conidia regular, oblong, obtuse, 3.5-6.6 . 8.7-20; conidio- phores slender, 1-2 x 45 ;u, hyaline. It is the cause of a decay of figs in the United States. C. ampelinum Cav. is on grape leaves. C. glceosporioides Penz. Acervuli sparse or scarcely gregarious, subepidermal, erumpent, dark, cylindric, setse continuous or few-septate, dark colored, 40-90 X 5-6 n, conidia cylindric, straight, 16-28 x 4-G ii co-. 370.—C. carica. 5, conidiospores, spores and seta;, 4, black bodies produced on germ tubes. After Stevens & Hall. nidiophores densely fasciculate, cylindric, rounded apically, tenuous, 18-25 x 4-5 /i. It causes "wither tip" of orange, pomelo and lemon, "''"^''" spots on citrus leaves, lime canker, and anthracnose of stem and flower with great financial loss in Florida, West Ladies, South America, Australia, Malta and many other localities. In "^'ither tip" the fungus enters through the terminal bud or from leaves. On lemons attack is through bruises. Acervuli are found on leaf, twig or fruit, breaking through the epidermis. Cross inoculation on the various hosts and with the different forms of the disease demonstrated the identity of all. Smith ^" has questioned the casual relation of this fungus as regards "Tather- tip" as it occurs in California. C. falcatum Went. Acervuli poorly defined, setse irregularly arranged, cuspidate, . 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 work.. Stevens, Frank Lincoln, 1871-1

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