Part 6, 1921] AECIDIACEAE 415 
222. Dicaeoma filiolum (Mains & Holway) Arthur. 
Puccinia filiola Mains & Holway; Arth. Am. Jour. Bot. 5: 482. 1918. 
Oand I. Pycnia and aecia unknown. 
II. Uredinia hypophyllous, scattered, round, minute, 0.1-0.2 mm. in diameter, early 
naked, pulverulent, cinnamon-brown, ruptured epidermis inconspicuous; urediniospores oblate- 
spheroid, 23-27 u broad by 19-23 » high, or triangular-obovoid, obovoid, or globoid, 21-23 by 
23-26 uw; wall dark cinnamon-brown, 1.5-2 4 thick, moderately and strongly echinulate, the 
pores 2 or 3, subequatorial. 
III. Telia usually hypophyllous, scattered, round, minute, 0.1-0.2 mm. in diameter, early 
naked, pulverulent, dark chestnut-brown, ruptured epidermis inconspicuous; teliospores ob- 
long or ellipsoid, 23-29 by 35-51 », rounded above and below, not constricted at septum; wall 
chestnut-brown, 2-3.5 w thick, thickened over the pores into a low yellowish umbo, 5-7 u, 
moderately verrucose with the markings often uniting in short irregular lines giving a coarsely 
verrucose appearance to the spore; pedicel colorless, up to 130 u long, thin-walled, 1 » or less. 
On LAMIACEAE: 
Salvia involucrata Cav., Guatemala. 
Salvia pulchella DC., Guatemala. 
Tyre Locality: Totonicapam, Guatemala, on Salvia involucrata. 
DISTRIBUTION: Guatemala; also in South America. 
223. Dicaeoma Anisacanthi (Peck) Arthur. 
Aecidium Anisacanthi Peck, Bull. Torrey Club 10:75. 1883. 
Puccinia Anisacanthi Dietel & Holway; Holway, Bot. Gaz. 31: 329, 1901. 
O. Pycnia amphigenous, scattered among the aecia, brownish, flask-shaped, 80-100 uw in 
diameter by 95-130 » high; ostiolar filaments 30-50 w long. 
J. Aecia amphigenous, sometimes caulicolous, causing distortion, short-cylindric, 0.2~ 
0.4 mm. across; peridium whitish, the margin erect, lacerate; peridial cells rectangular, 19-26 
by 30-40 u, slightly overlapping, the walls 3-6 u, the outer striate, the inner verrucose; aecio- 
spores globoid or irregular, 15-23 by 23-32 u; wall yellowish, 1.5—2 u thick, closely verrucose. 
IJ. Uredinia amphigenous, scattered, roundish, small, 0.2~0.5 mm. across, rather early 
naked, pulverulent, brownish; urediniospores broadly ellipsoid or obovoid, 19-25 by 22-29 y; 
wall golden-brown, 1-2 » thick, moderately echinulate, the pores 2 or 3, equatorial. 
Ill. Telia amphigenous, scattered, roundish, 0.3~1 mm. across, early naked, pulverulent, 
chocolate-brown, ruptured epidermis inconspicuous; teliospores ellipsoid, 26-32 by 39-48 u, 
rounded at both ends, slightly constricted at septum; wall chestnut-brown, thick, 3-5 y, 
thicker at apex with a broad lighter umbo, 7-11», obscurely reticulate with meshes 1-1.5 wu 
in diameter appearing minutely and moderately verrucose in optical section; pedicel pale, 
two to three times as long as spore, often inserted laterally, roughened below. 
On ACANTHACEAE: 
Anisacanthus Thurberi A. Gray, Arizona. 
Anisacanthus virgularis Nees, Oaxaca, San Luis Potosi. 
Anisacanthus Wrightii (Torr.) A. Gray, Chihuahua, Guanajuato (?). 
Type LocaLity: Arizona, on Anisacanthus Thurberi. 
DISTRIBUTION: Mexico and southern border of the United States. 
Exsiccatr: Pringle, Mexican Fungi 7; Sydow, Ured. 2013. 
224. Dicaeoma Ruelliae (Berk. & Br.) Kuntze, Rev. 
Gen. 33: 470. 1898. 
Urvedo Ruelliae Berk. & Br. Jour. Linn. Soc. 14:92. 1873. 
Puccinia lateripes Berk. & Rav.; Berk. Grevillea 3: 52. 1874. 
Uromyces texensis Berk. & Curt.; Berk. Grevillea 3: 56. 1874. 
Diorchidium lateripes Magnus, Ber. Deuts. Bot. Ges. 9: 191. 1891. 
Puccinia Ruelliae Lagerh. Tromsé Mus. Aarsh. 17:71. 1895. 
Puccinia Blechi Lagerh.; Pat. & Lagerh. Bull. Soc. Myc. Fr. 11: 214. 1895. 
Dicaeoma lateripes Kuntze, Rev. Gen. 33: 469. 1898. 
Aecidium Tracyanum Sydow, Hedwigia Beibl. 40: 129. 1901. 
Puccinia Ruellice Bourgaei Dietel & Holway, Bot. Gaz. 31: 329. 1901. 
Puccinia Longiana Sydow, Hedwigia Beibl. 40: 126. 1901. 
Aecidium lateripes Kellerm. Jour. Myc. 9: 234. 1903. 
Uredo balaensis Sydow, Ann. Myc. 1:21. 1903. 
