Parr 8, 1922] AECIDIACEAE 541 
spots, 0.5-2 cm. in diameter, round or oblong, 0.2-1 mm. across, early naked, compact, pul- 
vinate, ruptured epidermis conspicuous; teliospores oblong, ellipsoid, or clavate, 16-26 by 
30-42 uw, rounded or obtuse above, rounded or narrowed below, slightly constricted at septum; 
wall chestnut-brown, rather thick, 1.5-2.5 », thicker at apex, 5-9 », smooth; pedicel colorless 
or slightly tinted, about as long as spore. 
ON POLYGALACEAE: 
Polygala paucifolia Willd., Connecticut, Maine, Michigan, Minnesota, New Hampshire, 
New York, Wisconsin; Ontario. 
TYPE LOCALITY: Cape Elizabeth, Maine, on “ Pyrola’’ error for Polygala paucifolia. 
DISTRIBUTION: Maine and Connecticut westward to Minnesota. 
ILLUSTRATION: Holway, N. Am. Ured. 1: pl. 25, f. 89. 
Exsiccatt: Barth. N. Am. Ured. 164, 563; Ellis N. Am. Fungi 1039; Ellis & Ev. Fungi Co- 
lumb. 187; Seym. & Earle, Econ. Fungi Suppl. B17; Shear, N. Y. Fungi 121. 
45. Micropuccinia Arechavaletae (Speg.) Arthur'& Jackson. 
Puccinia Arechavaletae Speg. Anal. Soc. Ci. Argent. 12:67. 1881. 
Uromyces pervius Speg. Anal. Soc. Ci. Argent. 17:94. 1884. 
Uromyces aeruginosus Speg. Revista Argent. Hist. Nat. 1:20. 1891. 
Puccinia Serjaniae Ellis & Ev. Erythea 5:6. 1897. 
Caeomurus aeruginosus Kuntze, Rev. Gen. 3%: 449. 1898. 
Dicaeoma Arechavaletae Kuntze, Rev. Gen. 33: 467. 1898. 
O. Pycnia unknown. 
III. Telia mostly hypophyllous, loosely grouped or crowded and circinating on yellowish 
spots 2-5 mm. across, round, 0.1—-0.3 mm. in diameter, early naked, loosely pulvinate, chestnut- 
brown becoming cinereous from germination, ruptured epidermis inconspicuous; telios ores 
ellipsoid, 15-26 by 20-35 », rounded at both ends, not constricted at septum; wall golden- 
or chestnut-brown, 1.5-3 4 thick, sometimes thickened up to 7 at apex, smooth; pedicel 
colorless, up to three times as long as spore; mesospores very abundant, sometimes almost 
entirely replacing teliospores, globoid, ellipsoid, or obovoid, 13-23 by 16-26 wu, rounded above, 
rounded or narrowed below, the wall golden-brown, 2-3 thick, sometimes thickened up 
to 5» at apex, smooth, the pedicel colorless or tinted next to spore, up to 60 u long. 
ON SAPINDACEAE: 
Cardiospermum coluteoides H.B.K., Guatemala. 
Cardiospermum Corindum L,., Florida, Texas; Guatemala; Panama; Porto Rico. 
Cardiospermum grandiflora Sw., Costa Rica; Guatemala; Panama; Jamaica. 
Cardiospermum Halicacabum 1,., Florida, Texas; Guerrero, Hidalgo, Jalisco, Morelos; 
Panama; St. Vincent. 
Cardiospermum microcarpum H.B.K., Oaxaca, Vera Cruz; Bahamas; Cuba; Porto Rico; 
Jamaica; Antigua. 
Serjania racemosa Schum., Guerrero, Morelos. 
Type Locality: Montevideo, Argentina, on Cardiospermum velutinum. 
DISTRIBUTION: Tropical North America from Florida and Texas southward through the West 
Indies and Central America; also in South America. 
re Holway, N. Am. Ured. 1: pl. 26, f. 92; Bih. Sv. Vet.-Akad. Handl. 23 (3): 
pl. 4, f. 2 
Bee Barth. N. Am. Ured: 123. 
46. Micropuccinia Mesnieriana (Thiim.) Arth. & Jackson; 
Arth. Bull. Torrey Club 48: 41. 1921. 
Puccinia Mesnieriana Thiim. Myc. Univ. 834. 1877. 
Puccinia digitata Ellis & Hark. Bull. Calif. Acad. 1:27. 1884. 
Dicaeoma digitatum Kuntze, Rev. Gen. 33: 468. 1898. 
Dicaeoma Mesnierianum Kuntze, Rev. Gen. 33: 469. 1898. 
Dasyspora Mesnieriana Arth. Résult. Sci. Congr. Bot. Vienne he 1906. 
Coronotelium Mesnierianum Sydow, Ann. Myc. 19: 174. 1921 
oO. Pycnia unknown. 
III. Telia mostly hypophyllous, scattered, opposite reddish or brownish spots, round 
or elliptic, large, 1-4 mm. across, early naked, pulvinate, brownish-black, ruptured epidermis 
noticeable; teliospores clavate or cylindric, 12-21 by 48-804, with 2-7 digitate projections 
in a coronate arrangement at apex, rounded or narrowed below, slightly constricted at septum; 
wall chestnut-brown at apex, lighter below becoming almost colorless in lower cell, 2-3 » 
thick, much thickened above, 7-12 including projections; pedicel golden- or chestnut- 
brown, short, up to half length of spore. 
