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FUNGORUM - Acervo Digital de Obras Especiais

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Perisporiaceæ, Erysipheæ, Erysiphe. 19<br />

(COLENSO). - Ab Er. Martii, cui affinis, differt mycelio <strong>de</strong>nsiori<br />

sublichenoi<strong>de</strong>o. Appendices flexuosæ, sursum interdum nodulosæ.<br />

15. Erysiphe Martii Lév. in Ann. Sc. nat. 1851, tom. XV, p. 166,<br />

t. 10, f. 34. - Amphigena. Mycelio arachnoi<strong>de</strong>o, sæpissime evanido;<br />

ascis in quovis perithecio 4-8, sphæroi<strong>de</strong>is, breviter pedicellatis,<br />

4-8-sporis; appendicibus brevibus cum mycelio intertextis.<br />

73<br />

Hab. in foliis Cruciferarum, Leguminosarum, Galiorum,<br />

Umbelliferarum, Hypericacearum, Convolvulacearum,<br />

Urticacearum ec. in Britannia, Fennia, Sibiria<br />

asiatica, Gallia, Belgio, Italia, Amer. boreal. et. - Sec. De Bary<br />

non satis differt ab Er. communi.<br />

16. Erysiphe graminis DC. Flor. Franc. VI, p, 106. - Bifrons, sæpius<br />

epiphylla; mycelio effuso, floccoso-lanuginoso, persistente;<br />

peritheciis, gregariis v. disseminatis, hemisphæricis, <strong>de</strong>mum <strong>de</strong>pressis<br />

semiimmersis, magnis; ascis in singulo perithecio 20-24,<br />

ovoi<strong>de</strong>is, in pedicellum protractis, 8-sporis; appendicibus simplicibus<br />

cum mycelio intertextis. - Conidia moniliformi-concatenata,<br />

ovoi<strong>de</strong>a, simplicia, facile dilabentia, albida vel hyalina Oidium<br />

monilioi<strong>de</strong>s Link sistentia.<br />

Hab. in foliis Graminum variorum in Europa, Asia, Ame-<br />

74<br />

rica, Australia.<br />

17. Erysiphe vernalis Karst. Myc. Fenn. II. 193. - Mycelio arachnoi<strong>de</strong>o,<br />

evanido; peritheciis hemisphæricis mycelio emersis, fuscis,<br />

latit. circiter 0,1 mill.; ascis 8, brevissime pedicellatis, ovoi<strong>de</strong>is<br />

vel oblongato-sphæroi<strong>de</strong>is, 69 39, octosporis sporidiis 8, sphæroi<strong>de</strong>o-ellipsoi<strong>de</strong>is,<br />

16-18 11-12; appendicibus, hyalinis, sat longis.<br />

Hab. in ramulis Alni incanæ vivis prope Mustiala (Fennia)<br />

mense Majo 1866 (KARST.).<br />

75<br />

18. Erysiphe Ulmariæ Pérs. in herb., Desm. 13 Not. 1846, p. 66. -<br />

Kickx FI. crypt. Fl. I. 381. - Epi- rarius hypophylla; peritheciis<br />

minutissimis, globosis, nitidis; plerumque nervisequiis, ascis 8;<br />

sporidiis octonis ovoi<strong>de</strong>is vel suboblongis mycelio albo, adpresso,<br />

radiato; appendicibus elongatis, ramosis, tortuosis, subfuscis, perithecio<br />

paulo longioribus.<br />

Hab. in foliis Spirææ Ulmariæ in Gallia, Belgio, Germania,<br />

Italia etc. - Serius cl. Desm. ad E. horridulæ var. duxit; cl.<br />

Léveillé vero ad var. E. Martii.<br />

76<br />

19. Erysiphe fuscata B. et C. North Am. Fungi N. 991. - Tota fusca;<br />

peritheciis brunneis; appendicibus quandoque furcatis, fuligineis;<br />

sporidiis octonis.<br />

77

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