ParY 2, 1907] AECIDIACEAE 148 
wall pale-yellow, uniformly thin, about 1 #, rather closely echinulate-verrucose, pores 6 or 
more, scattered. 
III. Telia chiefly epiphyllous, scattered, small, subepidermal, blackish-brown, shining, 
ruptured epidermis not conspicuous; teliospore-heads dark chestnut-brown, very irregular 
in outline, 4-7 cells across, 60-90 # in diameter, each spore bearing 3-5 irregularly angular, 
semihyaline tubercles, 4-7 # long, with nearly as great a diameter; cysts hyaline, somewhat 
appressed, decurrent into the pedicel; pedicel hyaline, short, deciduous. 
ON FABACEAE : 
Cracca macrantha (T. & G.) Rose (Tephrosia macrantha 8. Wats.), Jalisco 
Type collected at Etzatlan, Jalisco, Mexico, on Cracca macrantha, October 2, 1903, E. W. D. 
Holuiay 5100. , 
32. Ravenelia caulicola Arthur, sp. nov. 
O. Pycnia unknown. 
II. Uredinia chiefly caulicolous, scattered, small, 0.2-0.3 mm. across, sometimes con- 
fiuent, subepidermal, soon ‘naked, dark cinnamon-brown, ruptured epidermis conspicuous ; 
paraphyses wanting; urediniospores broadly ellipsoid, 16-18 by 19-25; wall pale-yellow, 
uniformly thin, 1-1.54, lowly and rather sparsely echinulate, pores 6-10, scattered. 
III. Telia chiefly caulicolous, numerous, scattered, often crowded and confluent, sub- 
epidermal, soon naked, blackish, shining, ruptured epidermis noticeable; teliospore-heads 
light chocolate-brown, 4-8 cells across, 90-120 in diameter, smooth; cysts hyaline, large, 
pendent and decurrent into the pedicel, swelling and bursting in water; pedicel hyaline, 
persistent, 45-90 # long. 
ON FABACEAE : 
Cracca cinerea (1,.) Morong, Bahamas. 
Type collected at Cave Cay, Exuma Chain, Bahama Islands, February 19, 1905, NV. L. Brition 
& C.F. Millspaugh 2807. 
33. Ravenelia Brongniartiae Dietel & Holway, Bot. Gaz. 24: 35. 1897. 
Pleoravenelia Brongniartiae Long, Bot. Gaz. 35: 130. 1903. 
OQ. Pycnia epiphyllous, crowded in small groups, punctiform, brownish-yellow, subcu- 
ticular, flattened-conical, 75-130 broad, 30-50% high. 
II. Uredinia at first hypophyllous, becoming amphigenous and scattered, roundish or 
oblong, subepidermal, soon naked, pulverulent, cinnamon-brown, ruptured epidermis con- 
spicuous ; paraphyses none; urediniospores ellipsoid or obovate-ovoid, 18-24 by 22-30; wall 
thick, 2-3, light chestnut-brown, closely and strongly echinulate, pores 8-12, scattered. 
III. Telia amphigenous, from punctate to 0.5 mm. across, scattered, subepidermal, 
blackish-brown, shining, ruptured epidermis conspicuous; teliospore-heads chestnut-brown, 
4-8 cells across, 75-150 in diameter, densely covered with papillae, 3-4 high, pale-brown ; 
marginal tubercles one to each cell, cylindrical or somewhat capitate, 3-74 wide by 10-14 » 
long, chestnut-brown ; cysts pendent, decurrent into the pedicel; pedicel colorless, short, 
deciduous. 
ON FABACEAE : 
Brongniartia foliosa Benth., San Luis Potosi. 
Brongniartia intermedia Moric., Mexico (state), Morelos. 
Brongniartia podalyrioides H. B. K., Guerrero, Morelos. 
Brongniartia sericea Schlecht., Oaxaca. 
TYPE LOCALITY: Cuernavaca, Mexico, on Brongniartia sp. 
DISTRIBUTION: Central and southern Mexico. 
ILLUSTRATIONS : Bot. Gaz. 35: pl. 3, f. 20; Beih. Bot. Centr. 20°: pl. 5, f. 9. 
ExsiccaT1: Sydow, Ured. 1992. 
34. Ravenelia similis (ong) Arth. Bot. Gaz. 39: 396. 1905. 
Pleoravenelia similis Long, Bot. Gaz. 35: 128. 1903. 
O. Pycnia epiphyllous, crowded in small groups, punctiform, brownish-yellow, subcu- 
ticular, flat or flattened-conical, 65-100” broad, 20-304 high. 
II. Uredinia at first hypophyllous and grouped on discolored spots, becoming am phi- 
genous and scattered, small, roundish, subepidermal, soon naked, pulverulent, dark cin- 
namon-brown, ruptured epidermis noticeable ; paraphyses none ; urediniospores ellipsoid or 
