Anna E. Jenkins

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-

NEW SPECIES OF ELSINOE AND SPHACELOMA

Maculae 2-4 mm diam rotundae, centro griseo, margine angusto atrobrunneo, ad apicem gradatim centrum maculae versus subelevatae; ascomata 100-125 X 50 A, sparsa, in cellulis folii depressa; asci 27.5-30 X 17.5-20 A, bitunicati, ex ovoideo globosi, octospori; ascosporae 10-12 X 4-6 , ellipsoideae, hyalinae, 3-septatae et longitudinaliter 1-2-septatae. Hab. in foliis Alyxiae olivaeformis Gaudich (Apocynaceae), ex Hawaii.

Studies in the myriangiales: IV. Sphaceloma hesperethusae sp. nov. on Hesperethusa and Pleiospermium*

Sphaceloma hesperethusae sp.nov. is described on fruit and leaves of Hesperethusa crenulata (Roxb.) Roem. from India, and, provisionally, on fruit of two other closely related citrus relatives, viz. Pleiospermium alatum (Wt. & Arn.) Swing., India (Eastern Ghats, near Penagaluru), and P. sumatranum, Sumatra. The type specimen consists of the fungus on abundantly scabbed fruit of hesperethusa from the Calcutta Botanic Garden (1915). An exceptionally early record of the fungus, or disease, is afforded by the abundantly scabbed fruits of the type specimen of Hesperethusa crenulata (Limonia crenulata Roxb., 1795 ).