62 NORTH AMERICAN FLORA [VoLuME 6 
a diameter of 1 cm.; pycnidia gregarious, shining, globose or subglobose, reaching a diam- 
eter of 60-100 y,'with a conspicuous ostiolum; spores rod-like, without oil-drops, 1 X 3-4 u. 
ON CARDUACEAE: - 
Senecio dispar A. Nelson, Utah. 
TYPE LocaLity: Big Cottonwood Canyon, Utah, on Senecio dispar. 
DIsTRIsuTION: Known only from the type locality. 
239. Phyilosticta Geranii Ellis & Ev. Jour. Myc. 3: 130. 1887. 
Spots small, definite, circular or subcircular, or more rarely irregular in form, whitish, 
the infected tissue thin and translucent and often deciduous, surrounded by a definite, slightly 
elevated, dark-colored rim, similar on either side of the leaf but paler on the under surface, 
reaching a diameter of 2-3 mm.; pycnidia scattered over the infected spot, restricted to the 
upper side of the leaf, reaching a diameter of 80-100 »; spores very numerous, minute, ellip- 
soid, 1-2 & 3-6 ny. 
On GERANIACEAE: 
Geranium carolinianum L,., Louisiana. 
TYPE LOCALITY: Point a la Hache, Louisiana, on Geranium cerolinianum. 
DistRIsuTIon: Known only from the type locality. 
240. Phyllosticta Phytolaccae Cooke, Grevillea 12:25. 1883. 
Spots circular or subcircular, pale yellowish-brown, surrounded by a slightly elevated, 
darker reddish-brown rim, reaching a diameter of 2-3 mm.; pycnidia minute, scattered uver 
the infected spot; spores small, rod-like, about 1 X 4-5 u, rarely larger. 
ON PETIVERIACEAE: : 
Phytolacca americana V,. (Phytolacca decandra L.), New Jersey. 
Phytolacca sp., Alabama, South Carolina. 
Type Locatity: Aiken, South Carolina, on Phytolacca sp. 
DISTRIBUTION: New Jersey, South Carolina, and Alabama. 
Exsiccati: Rav. Fungi Am. 514. 
241. Phyllosticta Rhexiae Dearness & House; House, Bull. N. Y. 
State Mus. 179: 35. 1915. 
Spots reddish-brown, reaching a diameter of 1.5-2 mm., with a white center which pro- 
duces a single pycnidium, similar on both sides of the leaf; pycnidium solitary, near the center 
of the spot, occurring on the upper side of the leaf, brown, reaching a diameter of 40-50 u; 
spores elongate, 1 X 3 u. 
ON MELASTOMATACEAE: 
Rhexia ciliosa Michx., Florida. 
TYPE Locality: Jacksonville, Florida, on Rhexia ciliosa. 
DisTRIBUTION: Known only from the type locality. 
242. Phyllosticta palustris Ellis & Dearness, Trans. 
Can. Inst. 6: 637. 1899. 
Spots irregular or subangular, 1-3 mm. in diameter, rusty-brown, with a whitish center; 
pycnidia few, usually only one to each spot; spores ellipsoid, 1-1.25 X 3-4n. 
On LAMIACEAE: 
Stachys palustris L., Ontario. 
TYPE Locality: London, Ontario, on Stachys palustris. 
DisTrRisuTIon: Known only from the type locality. 
Exsiccati: Ellis & Ev. Fungi Columb. 1338. 
243. Phyllosticta Acanthospermi Ellis & Ev. N. Am. 
Phyllost. 57. 1900. 
Spots suborbicular, slate-colored or blackish-brown, the margin definite and of the same 
color, zonate, reaching a diameter of 2-4 mm.; spores ellispoid, hyaline, 1.5-2 & 3-4 nz. 
On CARDUACEAE: 
Acanthospermum australe (L.) Kuntze (Acanthospermum xanthioides DC.), Florida. 
Type Locatity: Lake City, Florida, on Acanthospermum xanthioides. 
DISTRIBUTION: Known only from the type locality. 
