Phyllosticta paviae Desm. 1847

In Great Britain and/or Ireland:
Foodplant / saprobe
pseudothecium of Guignardia aesculi is saprobic on dead, fallen, over-wintered leaf of Aesculus hippocastanum
Remarks: season: 5
Other: major host/prey

Foodplant / saprobe
pseudothecium of Guignardia aesculi is saprobic on dead, fallen, over-wintered leaf of Aesculus
Remarks: season: 5

Foodplant / spot causer
epiphyllous, scattered or crowded pycnidium of Phyllosticta coelomycetous anamorph of Guignardia aesculi causes spots on live leaf of Aesculus parviflora
Remarks: season: 7-

Foodplant / saprobe
pseudothecium of Guignardia aesculi is saprobic on dead, fallen, over-wintered leaf of Aesculus glabra
Remarks: season: 5

Phyllosticta paviae Desmaz. Ami. Sci. Nat. III. 8: 32. 1847
Phyllosticta sphaeropsoidea Ellis & Ev. Bull. Torrey Club 10: 97. 1883.
Spots reddish-brown, irregular, often reaching a diameter of several cm. or occasionally covering a large part of the leaf-surface, visible on both sides of the leaf but paler on the under side; pychidia numerous, quite evenly scattered over the infected spot, reaching a diameter of 120 fx; spores subglobose or ovoid, often containing one or two oil-drops, 8-10 X 12*15 a-
Said to be the pycnidial stage of Guignardia Aesculi (Peck) Stewart. (In Phytopathology 6: 9. 1916, it is suggested that Phyllosticta paviaecola Brunaud is also a synonym of this species.)
On Aesculaceae :
Aesculus glabra Willd., Illinois, Indiana, Iowa, Ohio, Pennsylvania.
Aesculus Hippocastanum L., Delaware, District of Columbia, Illinois, Indiana, Maine,
Massachusetts, Michigan, New Jersey, Ohio, Pennsylvania, Wisconsin; Ontario. Aesculus octandra Marsh. (Aesculus jiava Ait.), Iowa. Aesculus pavia L/., Alabama. ' Type locality: Europe, on Pavia macrostachya. Distribution: Maine to Wisconsin and Alabama ; also in Europe.

Phyllosticta aesculicola Sacc. Michelia 1: 134. 1878
Phyllosticta Aesculi Ellis & Martin, Jour. Myc. 2: 130. 1886.
Spots large, indefinite, sometimes covering half the surface of the leaflet, rusty-red on
the upper surface of the leaf, paler below, margin indefinite, gradually blending off into the
healthy tissue of the leaflet; pycnidia few, usually clustered in groups over the discolored
spot, small, reaching a diameter of 40-50 ju; spores ellipsoid, minute, 1-2.5 X 3-5 jt.
On Aesculaceae:
Aesculus glabra Willd., Missouri, Virginia.
Aesculus Pavia L,., Mississippi. Type locality: Europe, on Aesculus Hippocastanum. Distribution: Virginia, Missouri, and Mississippi; also in Europe. .Exsiccati: Ellis & Ev. N. Am. Fungi 1723.

Phyllosticta paviae est une espèce de champignons ascomycètes de la famille des Botryosphaeriaceae. Ce champignon parasite provoque la maladie des taches brunes sur les feuilles des arbres du genre Aesculus (marronniers, paviers).