A new species of Elsinoe on southern Magnolia.

Elsinoe magnoliae sp. nov. Figs. 1-5. Sphaceloma magnoliae Jenkins & Miller, Jour. Wash. Acad. Sci. 42: 323, f. 1, 1952. Maculae epiphyllae, sparsae vel aggregatae et coalescentes, saepe per nervum contractae vel areas laminae marginales vel apicicales involventes, circulares vel angulares, subelevatae, albae usque griseae, brunneo-marginatae, usque 1.5 mm in diam., stromata ascogena vel conidifera in massis atris papillosis vel applanatis, solitariis vel dispersis gerentes; ascomata subcuticularia vel intraeidermicalia, superficie superiori denudata, subspherica usque applanata, 30-240/* in diam., 20-40/* crassa, ex parte inferiori et inter ascos e cellulis minutis hyalinis parenchymaticis, supra e strato cellulorum fuscorum crassitunicatorum epithecium 10-15/* crassum efncienti composita; asci numerosi in stratis 1-2 irregulariter dispersi, globosi usque late elliptici, sessiles, tunica interiori praecique ad apicem incrassata, 17.5-30 X 14-20 /*; ascosporae irregulariter dispositae, clavato-ellipoideae, 3-septatae, interdum longitudinaliter divisae, 9-14X3.5-6/*; stromata conidifera sporodochioidea vel acervularia: sporodochia e stromate pallido pseudoparenchymatico subcuticulari oriunda; conidiophora e cellulis fuscis crasso-tunicatis in superficie stromatis oriunda, divergentia, recta vel geniculata, usque 4-septata, fusca, ad apices pallidioria, 20-45 X 4-5 /*; conidia acrogena, apiculis brevibus producta, unicellularia, ellipsoidea, hyalina, 6-12 X 3-5 /*; acervuli intraepidermicali-