22 NORTH AMERICAN FLORA [VOLUME 6 
50. Phyllosticta Cookei Sacc. Syll. Fung. 3: 25. 1884. 
Phyllosticta Magnoliae Cooke, Grevillea 9:94. 1881. Not P. Magnoliae Sacc. 1878. 
Spots circular or subcircular in form, reaching a diameter of 8 mm. to | cm., brown with 
a circumscribing line which is almost black and this surrounded by a slightly discolored zone 
about 2 mm. wide, the spot only slightly visible on the under side of the leaf; pycnidia quite 
evenly distributed over the infected area, reaching a diameter cf 200-300 u; spores ellipsoid 
or subellipsoid, 5-6 & 12-15 p. 
ON MAGNOLIACEAE: 
Magnolia acuminata L,., West Virginia. 
Magnolia glauca L., New Jersey. 
Magnolia virginiana L., Florida. 
Magnolia sp., California, Mississippi. 
TYPE LOCALITY: Kew, England, on Magnolia grandiflora. 
DistrRiBuTION: New Jersey to Florida and California; also in Europe. 
51. Phyllosticta Everhartii Sacc. & Syd. in Sacc. 
Syll. Fung. 14: 865. 1899. 
Phyllosticta Avaliae Eis & Ev. Proc. Acad. Phila. 1894: 355. 1894. Not P. Araliae Sace. & 
Berl. 1885. 
Spots subcircular or ellipsoid but rather indefinite in outline, pale-brown, the margin 
usually paler and gradually blending off into the healthy tissue of the leaf, reaching a diameter 
of 1 cm., only faintly visible on the under side of the leaf; pycnidia few, scattered, flattened, 
reaching a diameter of 100-150 4; spores ellipsoid, granular, sometimes containing two oil- 
drops, about 5-6 X 10-15 u. 
On ARALIACEAE: 
Aralia spinosa L., West Virginia. 
TYPE LOCALITY: Nuttallburg, West Virginia, on Aralia spinosa. 
DIstrRIBsuTION: Known only from the type locality. 
52. Phyllosticta Wislizeni Ellis & Ev. Bull. Torrey Club 
24: 285. 1897. 
Spots often terminal or lateral, consisting of dead areas of rather indefinite outline, dirty- 
brown, reaching a diameter of 5 mm. to 1 cm. or confluent and extending nearly the length 
of the leaf; pycnidia at first covered by the blackened epidermis which finally becomes vari- 
ously ruptured, the rupture often hysteriiform, reaching a diameter of 250-300», globose 
or subglobose; spores ellipsoid, or narrowed at one end, hyaline, 5-6 & 10-12 u. 
On FaGACeBaE: 
Quercus Wislizeni DC., California. 
TYPE Locality: Amador County, California, on Quercus Wislizenz. 
DISTRIBUTION: Known only from the type locality. 
53. Phyllosticta adusta Ellis & Martin, Jour. Myc. 2: 130. 1886. 
Spots occasionally subcircular but more often irregular in form, often occurring at the 
margins of the leaves and nearly surrounding them, often covering nearly half of the entire 
surface, becoming cinereous or whitish, surrounded or partially surrounded by a yellowish, 
slightly elevated, definite border, reaching a diameter of 1-4 cm., about equally visible on 
either side of the leaf; pycnidia numerous and quite thickly scattered over the surface of the 
infected spot, more abundant on the upper surface, reaching a diameter of 150-200 u, erum- 
pent through the epidermis; spores ellipsoid or with the ends slightly narrowed, granular 
within, 4-7 X 10-18 yu. 
ON RUTACEAE: 
Citrus sp. (cult.), Alabama, Florida, and Louisiana. 
Type LocaLtity: Florida, on Citrus sp. 
DistRIBUTION: Florida to Louisiana. 
Exsiccati: Ellis & Ev. N. Am. Fungi 1721. 
