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FUNGORUM - Acervo Digital de Obras Especiais

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22 Perisporiaceæ, Erysipheæ, Erysiphe.<br />

Hab. in foliis Syringæ et Cydoniæ Hortorum, Bethlehem,<br />

Am. bor. - Conferatur Microsph. Friesii.<br />

30. Erysiphe quercina Schw. Syn. Amer. bor. n. 2492. - Hyphasma<br />

occupans fere totum folium, expansum, candicans, tenuissimum,<br />

floccis vix distinctis. Peritheciis raris, minutissimis, sparsis nigris;<br />

præsertim loco, distinguenda species.<br />

Hab. sero autumno non rara in foliis quercinis præsertim<br />

Bannisteris, Pennsylvania (Amer. bor.).<br />

31. Erysiphe necator Schw. Syn. Amer. bor. n. 2495. - Hyphasma<br />

tenuissimum albidum, floccis val<strong>de</strong> tenuibus, orbiculatum, non<br />

constringens. Peritheciis minutissimis, raris, fusco-nigris, globosis.<br />

Ubi omnino evoluta, etiam hæc species <strong>de</strong>struit uvas.<br />

Hab. multo rarius in Uvis Vitis Labruscæ varietatibus<br />

cultis in vineis nostris, Amer. bor.<br />

32. Erysiphe Ceanothi Schw. Syn. Amer. bor. n. 2482. - Hyphasma<br />

candidum, filis vix lente distinguendis, farinæ ad instar in<strong>de</strong>terminatim<br />

in foliis effusum. Peritheciis minutis immersis, nigro-nitidis.<br />

Hab. in foliis Ceanothi pagina superiori frequens, autumno,<br />

Bethlehem, Am. bor.<br />

33. Erysiphe Gerardiæ Schw. Syn. Am. bor. n. 2481. - Hyphasma<br />

e sulphureo-olivaceum, filis tenuissimis efficit maculas irregulariter<br />

effusas minores, interdum subeffiguratas, confluentes. Peritheciis,<br />

absque capillitio gregaria, in hyphasmate globosa, <strong>de</strong>mum<br />

pezizoi<strong>de</strong>a nigro-fusca. Floccis hyphasmatis prima juventute epi<strong>de</strong>rmi<strong>de</strong><br />

folii tectis, <strong>de</strong>mum nudis.<br />

Hab. in foliis Gerardiæ quercifoliæ rara sed distinctissima.<br />

Salem. Amer. bor.<br />

34. Erysiphe Ambrosiæ Schw. Syn. Am. bor. n. 2484. - Hyphasma<br />

candidum, tenuissimis floccis vix distinguendis, in<strong>de</strong>terminatim latius<br />

effusum in toto folio. Peritheciis sphæricis, fuscis nigrisque,<br />

raris, capillitio majoribus.<br />

Hab. in foliis Ambrosiarum, autumno, vulgatissima, Bethlehem,<br />

Amer. bor.<br />

35. Erysiphe Verbenæ Schw. Syn. Amer. bor. n. 2485. - Hyphasma<br />

lenissimum in<strong>de</strong>terminatim effusum, maculas tamen efformans confluentes<br />

et sub<strong>de</strong>terminatas candidas. Floccis intertextis brevibus.<br />

Peritheciis <strong>de</strong>stitutis capillitio, fuscis nec nigris, rugosis, <strong>de</strong>ciduis.<br />

Hab. in foliis Verbenæ urticifoliæ vulgatissima sero autumno,<br />

Bethlehem, Amer. bor.<br />

88<br />

89<br />

90<br />

91<br />

92<br />

93

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