Part 7, 1922] AECIDIACEAE 505 
49. Bullaria (?) decora (Dietel & Holway) Arthur & Mains. 
Puccinia ‘ae ad Dietel & Holway; Holway, Bot. Gaz. 24:34. Jl 1897. Not P. pinguis Dietel, F 
Puccinia decora Dietel & Holway, Hedwigia 37: 202. 1898. 
O. Pyenia unknown. 
II. Uredinia amphigenous, chiefly hypophyllous, numerous, scattered, small, 0.2-0.5 
mim. across, early naked, becoming pulverulent, cinnamon-brown, ruptured epidermis scarcely 
noticeable; wurediniospores ellipsoid or broadly ellipsoid, 24-28 by 28-32 n, slightly flattened 
laterally; wall chestnut-brown, uniformly 2.5-3.5 » thick when viewed with pores in face 
view, when seen in optical section 1.5—2 « at sides and 2.5~3.5 » at apex and base, inconspicu- 
ously and somewhat sparsely echinulate, the pores 2, equatorial, each covered with a notice- 
able hyaline cap. 
III. Telia hypophyllous, few, scattered, small, 0.2-0.5 mm. across, early naked, becoming 
pulverulent, chestnut-brown, ruptured epidermis not conspicuous; teliospores broadly ellip- 
soid, 32-35 by 42-50 wu, rounded above and below, scarcely constricted at septum; wall chest- 
nut-brown, 4-6 » thick, thickened above, 8-10 u, concolorous, or with semi-hyaline umbo, 
also similarly thickened over pore of lower cell which is situated approximately half way 
between the septum and pedicel, smooth; pedicel colorless, short, the wall thin. 
On CaRDUACEAE: 
Coleosanthus sp. (Brickellia sp.), Mexico (state). 
~ LOCALITY: Rio Hondo, near City of Mexico, Mexico, on Brickellia sp. 
DISTRIBUTION: Known only from the type locality. : 
50. Bullaria Baccharidis-multiflorae (Dietel & Holway) 
Arthur & Mains. 
Puccinia Baccharidis-multiflorae Dietel & Holway; Holway, Bot. Gaz. 31:331. 1901. 
Eriosporangium Baccharidis-multifiorae Arth, Résult. Sci. Congr. Bot. Vienne 343. 1906. 
Argomyces Baccharidis-multiflorae Arth. N. Am. Flora 7: 218. 1912. 
O. Pyenia epiphyllous, few in «a group, flattened-globoid, 100-112 » broad by 70-90 yz 
high; ostiolar filaments 29-32 p» long. 
II. Uredinia of the primary form epiphyllous, surrounding the pycnia; uredinia of the 
secondary form hypophyllous, scattered, round, 0.2-0.5 mm. across, early naked, pulverulent, 
bright cinnamon-brown, ruptured epidermis evident; urediniospores obovate, 21-29 by 
30-39 », rounded or obtuse above, usually narrowed below; wall golden-brown, moderately 
thin, 1-2 », greatly thickened above, 3-7», strongly and sparsely echinulate with points 
about 3 4 apart, the pores 3, prominent, equatorial, usually covered by the inflated cuticle. 
III. Telia hypophyllous, scattered, round, 0.3-0.7 mm. across, pulvinate, light chestnut- 
brown, or cinereous by germination, ruptured epidermis inconspicuous; teliospores broadly 
oblong or oblong-obovate, 21-27 by 40-50 yw, rounded or obtuse at both ends, slightly con- 
stricted at septum; wall smooth, cinnamon-brown, often paler above, thin, 1-1.5 p, greatly 
thickened above, 5-12 u, also greatly thickened over pore of lower cell close to septum, 3-7 y; 
pedicel nearly or quite colorless, terete, slender, 5-7 » thick, one half to once and a half 
length of spore. 
ON CaRDUACEAE: 
Baccharis elegans H.B.K., Oaxaca. 
Baccharis multiflora H.B.K., Mexico (state). 
Baccharis serraefolia DC., Guatemala. 
Type LOCALITY: Amecameca, Mexico, on Baccharis multiflora. 
DistTRIBUTION: Southern Mexico and Central America. 
51. Bullaria triannulata (Berk. & Curt.) Arthur & Mains. 
Uromyces triannulatus Berk. & Curt.; Berk. Grevillea 3:56. 1874. 
Puccinia mirifica Dietel & Hotway; Dietel, Erythea 3:79. 1895, 
Caeomurus triannulatus Kuntze, Rev. Gen. 33: 451. 1898. 
Dicaeoma triannulatum Arth. Résult. Sci. Congr. Bot. Vienne 344. 1906. 
Puccinia triannulata H. S. Jackson, Mycologia 14: 111. 1922. 
O. Pyenia chiefly hypophyllous, scattered over large areas, numerous, preceding or 
accompanying the uredinia, prominent, honey-yellow becoming blackish-brown, flattened- 
globoid, 128-144 » in diameter by 65-90 uw high; ostiolar filaments 50-85 u long. 
