Part 7, 1922] AECIDIACEAE 499 
35. Bullaria idonea (Jackson & Holway) Arthur & Mains. 
Puccinia idonea Jackson & Holway; H. 8. Jackson, Bot. Gaz. 65: 304. 1918. 
O. Pycnia unknown. 
II. Uredinia amphigenous, scattered or somewhat crowded, frequently confluent along 
the midribs and larger veins, roundish or somewhat elongate, 0.3-0.6 mm. across, early 
naked, pulverulent, lemon-yellow fading to white, ruptured epidermis conspicuous; ure- 
diniospores broadly ellipsoid or obovoid, 18-21 by 23-28; wall colorless, thin, 1-1.5 », 
finely and moderately echinulate, the pores obscure, but apparently equatorial. 
III. Telia amphigenous, chiefly hypophyllous, scattered or somewhat crowded and 
frequently confluent along the midribs and larger veins, roundish or somewhat elongate, 
0.3-0.6 mm. across, early naked, pulvinate, becoming pulverulent, blackish-brown, ruptured 
epidermis conspicuous; teliospores broadly ellipsoid, 23-28 by 35-45 u, rounded at both 
ends, not or scarcely constricted at septum; wall chestnut-brown, moderately thick, 3-4 y, 
slightly thickened at apex and over pore of lower cell to 7 », prominently and evenly verrucose, 
with broad low projections rather closely set, sometimes arranged in lines; pedicel colorless, 
flexuous, 3-5 » thick, transversely rugose at base and swelling slightly, twice length of spore. 
On CaRDUACEAE: 
ae Eremosis triflosculosa (H.B.K.) Gleason (Vernonia triflosculosa H.B.K.), Costa Rica; Gua- 
TYPE LocaLity: Escuintla, Guatemala, on Vernonia triflosculosa. 
DistRIBuTION: Central America. 
36. Bullaria praealta (Jackson & Holway) Arthur & Mains. 
Puccinia praealia Jackson & Holway; H. S. Jackson, Bot. Gaz. 65: 306. 1918. 
Puccinia Tonduziana Speg. Bol. Acad. Nac. Ci. Cordoba 23: 184. 1919. 
O. Pyenia unknown. 
II. Uredinia epiphyllous, densely gregarious and often confluent on irregular spots 0.5—-2 
mum. across, bullate, 0.2-0.4 mm. across, long covered by the overarching and conspicuous 
epidermis, deep-seated, arising from below the palisade layer, pulverulent, light-yellow fading 
to whitish; urediniospores ellipsoid or obovoid, 18-20 by 24~28 yu; wall pale-yellow or color- 
less, thin, 1-1.5 yw, finely and moderately echinulate, the pores obscure, apparently 2, equa- 
torial. 
III. Telia epiphyllous, densely gregarious and often confluent on irregular spots 0.5-1.5 
mm. across, becoming scattered, bullate, 0.2-0.4 mm. across, long covered by the overarching 
and conspicuous epidermis, deep-seated, arising from below the palisade layer, compact, 
chestnut-brown; teliospores ellipsoid, 24-28 by 32-40 uw, rounded at both ends, slightly or 
not constricted at septum; wall light chestnut-brown, 3-4 » thick, slightly thickened over 
the pore of either cell, 4-5 y, rather prominently and sparsely verrucose with conic pro- 
jections; pedicel colorless, once to twice length of spore. 
On CARDUACEAE: . 
Eremosis triflosculosa (H.B.K.) Gleason (Vernonia triflosculosa H.B.K.), Costa Rica; Gua- 
temala. 
Type Locatity: Mazatenango, Guatemala, on Vernonia triflosculosa,. 
DisTRIBuTION: Central America. 
ILLUSTRATION: Bol. Acad. Nac. Ci. Cordoba 23: 185. 
37. Bullaria (?) egregia (Arth.) Arthur & Mains. 
Puccinia egregia Arth. Bot. Gaz. 40: 204. 1905. 
O. Pycnia unknown. 
Il. Uredinia not seen; urediniospores from telial sori globoid or obovoid, 23-26 by 
24-28 pw; wall golden-yellow, rather thick, 1.5~2.5 4, moderately echinulate, the pores obscure, 
apparently 3, equatorial. 
III. Telia amphigenous, scattered, round, 0.2-0.5 mm. across, early naked, pulvinate, 
becoming somewhat pulverulent, chocolate-brown, ruptured epidermis inconspicuous; telio- 
spores broadly ellipsoid, 26-30 by 35-45 uw, rounded at both ends, not constricted at septum; 
wall chestnut-brown, very thick, 4-6, very slightly thickened at apex and over pore of 
