16 NORTH AMERICAN FLORA [VOLUME 6 
only on the upper side of the leaf but occasionally on the under side also; spores ellipsoid or 
slightly narrower at one end, usually containing two small oil-drops, 3-5 X 10-12 4. 
ON AMARANTHACEAE: 
Amaranthus retroflexus L,., Alabama, Kansas. 
Type Locality: Garden City, Kansas, on Amaranthus retroflexus. 
DistrRIBUTION: Kansas to Alabama; also in Europe. 
24. Phyllosticta Silenes Peck, Ann. Rep. N. Y. 
State Mus. 43: 72. 1890. 
Spots large, sometimes occupying half the surface of the leaf, pallid; pycnidia occurring 
on both sides of the leaf or only on the under side, minute, prominent, black; spores ellip- 
soid, 3.5-5 X 10-12 p. 
On CARYOPHYLLACEAE: 
Silene antirrhina L., New York. 
Typk Locality: Copake Iron Works, Columbia County, New York, on Silene antirrhina. 
DisTRIBUTION: Known only from the type locality, 
25. Phyllosticta citrullina Chester, Bull. Torrey Club 18: 374. 1891. 
Ascochyta citrullina C. O. Smith, Bull. Del. Exp. Sta. 70:7. 1905. 
Diplodina citrullina Grossenb. Tech. Bull. N. Y. Exp. Sta. 9: 226. 1909. 
Spots circular or irregular, black, concentrically ringed, becoming confluent; pycnidia 
brown, immersed, scarcely erumpent, lenticular, reaching a diameter of 75-1304; spores 
ellipsoid, straight or slightly curved, 3.5 X 104, occasionally 1-septate. 
Thought to be the pycnidial stage of Mycosphaerella citrullina (C. O. Smith) Grossenb. 
Tech. Bull. N. Y. Exp. Sta. 9: 226. 1909 (Sphaerella citrulina C. O. Smith), but connection 
not proven. 
ON CUCURBITACEAE: 
Citrullus Citrullus (L,.) Karst. (Citrullus vulgaris Schrad.) (cult.), Delaware. 
TYPE LOCALITY: Newark, Delaware, on Citrullus vulgaris. 
DIsTRIBUTION: New York and Delaware. 
In.ustrations: Bull. Del. Exp. Sta. 70: f. 1, 3; pl. 1. 
26. Phyllosticta Galactis (Cooke) Ellis & Ev.; Millsp. & Nutt. 
Field Mus. Publ. Bot. 1: 103. 1896. 
Phoma Galactis Cooke, Grevillea 14:90, 1886. 
Spots irregular, forming brown patches which partially surround the leaf extending 
inward, often covering half the surface of the leaf, indefinite in outline; pycnidia scattered 
over the surface of the infected spot, mostly on the upper surface, minute, reaching a diam- 
-eter of 50-80 uw; spores scant, 4 X 12-15 pu. 
On DIAPENSIACEAE: 
Galax aphylla I. West Virginia. 
Tyre Locality: West Virginia, on Galax aphylla. 
DIstRIBUTION: West Virginia; also in Europe. 
Exsiccatt: Ellis & Ev. N. Am. Fungi 3153. 
27. Phyllosticta spinosa Ellis & Kellerm. Jour. Myc. 
3: 102. 1887. 
Spots usually circular or subcircular, white or whitish, with a very narrow dark-brown or 
purplish, definite border, reaching a diameter of 2-3 mm., the spots slightly visible on the 
under side of the leaf and covered with tufts of brown sterile hyphae; pycnidia usually gre- 
garious near the center of the spot; spores ellipsoid, often containing two oil-drops, 3-5 X 
12-14 uw. 
On MALVACEAE: 
Sida spinosa L., Kansas. 
TPH LocaLiry: Manhattan, Kansas, on Sida spinosa. 
DISTRIBUTION: Known only from the type locality. 
