416 NORTH AMERICAN FLORA [VOLUME 7 
O. Pycnia amphigenous or caulicolous, in loose groups on spots with the aecia, incon- 
spicuous, brownish, globoid or flask-shaped, 90-120 wu in diameter by 80-110 u high; ostiolar 
filaments dense, 15-35 u long. 
I. Aecia caulicolous or amphigenous, causing distortion of the stem, on spots on the leaves, 
cylindric, 0.2-0.3 mm. in diameter by 0.3-0.6 mm. high; peridium white, delicate, often be- 
coming ruptured near the base and resulting in the aecia appearing short and cupulate, the 
margin irregular, lacerate; peridial cells ellipsoid or oblong, 18-24 by 32-44 u, overlapping, 
the walls 3-5 » thick, verrucose; aeciospores ellipsoid, 15-21 by 20-304; wall pale-yellow, 
1~2 » thick, closely verrucose. 
II. Uredinia amphigenous, numerous, scattered or irregularly clustered, roundish, small, 
0.1-0.7 mm. across, rather early naked, pulverulent, cinnamon-brown, ruptured epidermis 
conspicuous; urediniospores ellipsoid or cbovoid, 16-24 by 22-32 » (southern forms up to 26 
by 37 4); wall cinnamon-brown, 1.5-2.5 4 thick, moderately and strongly echinulate, the 
pores 2, equatorial. 
III. Telia amphigenous, sometimes also caulicolous and fructicolous, numerous, scattered 
or clustered, roundish, small, 0.2-0.8 mm. across, early naked, pulverulent, chocolate-brown, 
ruptured epidermis inconspicuous; teliospores ellipsoid, 19-29 by 31-41 yw, rounded at both 
ends, scarcely constricted at septum; wall chestnut-brown, uniformly thick, 2-3.5 », faintly 
rugose in short lines uniting to form reticulations appearing moderately and finely verrucose 
in optical section; pedicel usually inserted laterally, pale, roughened below, once to thrice 
length of spore. 
On ACANTHACEAE: 
Blechum Brownei (Sw.) Juss., Costa Rica; Guatemala; Cuba; Martinique; Porto Rico. 
Justicia sp., Costa Rica; Guatemala. 
Ruellia Bourgaei Hemsl., Jalisco. 
Ruellia ciliosa Pursh, District of Columbia, Illinois, Indiana, Kansas, Missouri, West 
Virginia. 
Ruellia audiiave (Engelm. & Gray) Urban, Texas. 
Ruellia paniculata 1,., Jamaica. 
Ruellia strepens W., Arkansas, Ilinois, Indiana, Kansas, Kentucky, Missouri, Ohio, 
Tennessee, Texas. 
Ruellia tuberosa I,. (R. clandestina U,.), Texas; Jamaica. 
Ruellia sp., Guerrero. 
TYP Locality: Ceylon, on Ruellia prostrate. 
DisTRIBUTION: Ohio and West Virginia to Kansas and Texas, southward through Central 
America and the West Indies; also in South America and Asia. 
ILLUSTRATIONS: Ber. Deuts. Bot. Ges. 9: pl. 9, f. 38-47; Jour. Myc. 9: pl. 2; Jahrb. Wiss. 
Bot. 26: pl. 4: f. 11. 
Exsrccatr: Barth. Fungi Columb. 2563, 2667, 2857, 3847, 4855, 4966; Barth. N. Am. Ured. 
456, 467, 1057, 1455, 1948, 2046, 2252; Carleton, Ured. Am. 42; Ellis & Ev. Fungi Columb. 259; Etlis, 
Am. Fungi 1055a, b; Kellerm. Ohio Fungi 130, 131; Seym. & Earle, Econ. Fungi Suppl. Bl5a, 6; 
Sydow, Ured. 1374, 1531. 
225. Dicaeoma (?) varium (Dietel) Arthur. 
Uredo varia Dietel, Hedwigia 36: 35. 1897. 
Puccinia varia Arth. Am. Jour. Bot. 5: 487. 1918. 
O and I. Pycnia and aecia unknown. 
II. Uredinia amphigenous, scattered, round or oblong, 0.2-1 mm. across, somewhat 
tardily naked, pulverulent, golden-brown, ruptured epidermis conspicuous; urediniospores 
obovoid or ellipsoid, 21-24 by 27-34 w; wall golden-brown, rather thin, 1-1.5 u, moderately 
and prominently echinulate, the pores 2, equatorial. 
III. Telia epiphyllous, scattered, round, about 0.3 mm. in diameter, chestnut-brown, 
ruptured epidermis noticeable; teliospores broadly ellipsoid, 24-29 by 39-45 u, rounded above 
and below, slightly or not constricted at septum; wall chestnut-brown, 2-3 » thick, slightly 
thickened at apex, 5-6 », smooth; pedicel tinted, up to 55 u long. 
On ACANTHACEAE: 
Ruellia or Jacobina sp.?, Guatemala. 
‘TYPE Locality: Rio de Janeiro, Brazil, on an Acanthaceous host. 
DIstRIBUTION: Guatemala; also in South America. 
