58 NORTH AMERICAN FLORA {VOLUME 6 
area which varies in size but often covers a large portion of the leaf, about equally conspicuous 
on either side of the leaf; pycnidia sparingly scattered over the spots, restricted to the under 
side of the leaf, minute but rather conspicuous, black; spores rod-shaped or allantoid, about 
2X 6p. 
ON CYPERACEAE: 
Carex intumescens Rudge, Wisconsin. 
Carex pennsylvanica Lam., New York. 
Carex trisperma Dewey, Wisconsin. 
Carex sp., New York. 
TYPE LOCALITY: Europe, on Carex muricata. 
DISTRIBUTION: New York and Wisconsin, also in Europe. 
223. Phyllosticta Xanthosomatis Sacc. Ann. Myc. 11: 548. 1913. 
Spots subcircular, occurring on the upper side of the leaf, yellowish, reaching a diameter 
of 7-10 mm.; pycnidia gregarious, 70-80 », with a large, conspicuous ostiolum; spores ellip- 
soid-fusoid, dilutely greenish, about 2.5 X 4 un. 
ON ARACEAE: 
Xanthosoma sp., Mexico. 
TYPE LOCALITY: Oaxaca, Mexico, on a aninesoned sp. 
DisTRIBUTION: Known only from the type locality. 
224. Phyllosticta Maurandiae Dearness & House; House, Bull. 
N. Y. State Mus. 179: 34. 1915. 
Spots circular or subcircular, white, the substance thin with a raised border but no con- 
tiguous discoloration, scattered, small, reaching a diameter of 1-2 mm.; pycnidia rather 
numerous, as many as 21 on a spot, visible on both sides of the leaf, subglobose, reddish, 
reaching a diameter of 90-150; spores hyaline, flattened, oval, minute, 1  3.5-4 « when 
measured on their edges, 2.75-3 X 3.5-44 when measured on their face, containing two 
oil-drops. 
On SCROPHULARIACEAE: 
Maurandia semperflorens Ort., Oaxaca, on Maurandia semper florens. 
TYPE LocaLITY: Monte Alban, Oaxaca, on Maurandia semper florens, 
DIsTRIBUTION: Known only from the type locality. 
225. Phyllosticta Oxalidis Sacc. Michelia 1: 142. 1878. 
Spots variable in form, becoming dry and whitish, with a brownish margin; pycnidia 
few, scattered, globose-lenticular; spores globose-ovoid, 3 X 4 yu. 
On OXALIDACEAE: 
Xanthoxalis stricta (L.) Small (Oxalis stricta L.), Wisconsin. 
TYPE LOCALITY: Europe, on Oxalis A cetosella. 
DISTRIBUTION: Wisconsin; also in Europe. 
226. Phyllosticta Heraclei Ellis & Dearness, Proc. Can. Inst. 
IV.1: 91. 1897, 
Spots indefinite, reddish-brown, becoming pale toward the margin and gradually blending 
off into the healthy tissue of the leaf, reaching a diameter of 1-2 cm., later often becoming 
confluent and covering a large part of the leaf, similar in color on both sides of the leaf; pyc- 
nidia sparingly scattered or occasionally congested, usually restricted to the upper side of 
the leaf, reaching a diameter of 110-125 y; spores rather minute, ellipsoid or rod-like, 2 X 4. 
On AMMIACEAE: 
Heracleum lanatum Michx., Ontario. 
TYPE LOCALITY: London, Ontario, on Heracleum lanatum, 
DistRIBUTION: Known only from the type locality. 
227. Phyllosticta Apii Halsted, Ann. Rep. N. J. 
Exp. Sta. 12: 253. 1892. 
Spots indefinite and irregular in form, usually occurring near the margin of the leaf 
yellowish-brown, reaching a diameter of 1 cm., the infected tissue becoming very thin and 
