Phyllosticta concentrica Sacc. 1878

Phyllosticta concentrica Sacc. Nuovo Giorn. Bot. Ital
8: 203. 1876.
Phyllosticta concentrica sparsa Ellis & Ev. N. Am. Fungi 2936, hyponym. 1893. ? Phyllosticta decipiens Ellis & Ev. N. Am. Phyllost. 55. 1900.
Spots definite and surrounded with faint concentric rings or indefinite and covering a large portion of the leaf; pyenidia numerous and thickly scattered over the infected area, occurring on both sides of the leaf, reaching a diameter of 150-180 ju> spores numerous, ovoid or pyriform, often quite strongly narrowed at one end, variable in size but usually about
5-6 X 10-12/*.
On Araliaceae:
Hedera Helix L. (cult.), New Jersey, Texas. Type locality: ' Europe, on Hedera Helix. Distribution: New Jersey to Texas; also in Europe.

Phyllosticta maxima Ellis & Ev. Jour. Myc. 4: 123. 1888
? Phyllosticta Rhododendri Westend. Bull. Acad. Belg. 18 2 : 399. 1851.
Spots large, irregular or semicircular in form, usually occurring on the margin or on the end of the leaf, often reaching a length of 4-5 cm., reddish-brown and distinctly marked with reddish zones, whitish near the center, visible on both sides of the leaf; pycnidia rather sparingly scattered over the infected spot, more abundant on the upper surface but sometimes occurring on both, reaching a diameter of 120-150 u spores rather large, ellipsoid or subfusoid, 5-7 X 15-20 >
On Ericaceae :
Rhododendron catawbiense Pursh, New Jersey. Rhododendron maximum L., Massachusetts. Type locality: Bedford, Massachusetts, on Rhododendron maximum.
Distribution: Massachusetts, New Jersey, and Pennsylvania; also reported on Rhododendron nudiflorumt from Alabama.

Phyllosticta ilicicola (Cooke & Ellis) Ellis & Ev
Fungi Columb. 70. 1893.
Sphaeropsis ilicicola Cooke & Ellis, Grevillea 6: 3. 1877.
Phoma ilicicola Sacc. Syll. Fung. 3: 106. 1884.
? Phyllosticta Prini Peck, Ann. Rep. N. Y. State Mus. 43: 72. 1890.
Spots internal or more often marginal or terminal, often covering half of the leaf-surface or more, when internal often circular or subcircular in form and very variable in size, whitish, only slightly visible on the under surface of the leaf, reaching a diameter of 1-3 cm. ; pycnidia numerous, scattered over the infected spot, restricted to the upper side of the leaf, reaching a diameter of 150-200 /x; spores numerous, ellipsoid or pyriform, granular within, rather variable in size and form but averaging 4-5 X 10-12 /x.
Said to be like the pycnidial stage of Physalospora Bids (Schleich.) Sacc.
On Aquieoliaceae:
Ilex opaca Ait., New Jersey, New York.
? Ilex verticillata (h.) A. Gray, New York. Type locality: New Jersey, on Ilex sp. Distribution: New York and New Jersey.

Phyllosticta concentrica is a fungal plant pathogen.