Part 2, 1907] : AECIDIACEAE 159 
DISTRIBUTION: From the Atlantic to the Pacific coasts of the United States, especially abund- 
ant in the Mississippi valley. 
ExsIccaTi : Seym. & Earle, Econ. Fungi 202 ; Ellis, N. Am. Fungi 1036; Ellis & Ev. N. Am. 
Fungi 2255, 2418, 3148; Ellis & Ev. Fungi Columb. 562, 655, 1690; Carleton, Ured. Am. 23; 
Griff, West Am. Fungi 32, 247 ; Sydow, Ured. 786, 1034, 1035, 1088; Thiimen, Myc. Univ. 1037 ; 
Roum. Fungi Gall. 4404; Rav. Fungi Car. 1: 97; Rav. Fungi Am. Exs. 39, 40, 279; Rab.-Wint.- 
Paz. Fungi Eur. 3831. 
13. CALLIOSPORA Arth. Bot. Gaz. 39: 390. 1905. 
Cycle of development includes only pycnia and telia, the former subcuticular, the latter 
subepidermal. 
Pycnia conoidal ; hymenium flat; ostiolar filaments usually present. 
Telia erumpent, somewhat indefinite, without paraphyses. Teliospores free, two-celled 
by transverse septum, verrucose or smooth; wall laminate, inner layer firm, colored, outer 
layer gelatinous, translucent, overlaid by cuticle, pores two in each cell and lateral. 
Type species, Calliospora Holwayi Arth. (on Lysenhardtia amorphotdes). 
Gelatinous layer amber-colored, pedicel swelling to bursting. 1. C. Diphysae. 
Gelatinous layer colorless. 
Pedicel swelling to bursting. 2. C. Holwayt. 
Pedicel swelling slightly, mostly deciduous. 3. C. Farlowit. 
1. Calliospora Diphysae Arth. Bot. Gaz. 39: 391. 1905. 
O. Pycnia amphigenous, crowded in branching groups, or disposed in lines, bullate or 
hemispherical, smooth, pale-brown, subcuticular, 100-175 » wide, less than half as high; 
ostiolar filaments wanting. 
III. Telia amphigenous and caulicolous, round or elongate, 1-5 mm. long, early naked, 
blackish, pulverulent, ruptured epidermis conspicuous; teliospores elliptical, 30-33 by 
45-50 #, rounded at both ends, not constricted at septum; wall laminate, inner layer dark 
chestnut-brown, 3-4 thick, pores 2 in each cell, lateral and opposite, outer layer pale 
amber-colored, gelatinous, 3-4 » thick in water, sparsely and evenly verrucose; pedicel half 
length of spore or longer, colorless, smooth, firm above, at base slightly bulbous and swell- 
ing in water to bursting. 
ON FABACEAE: 
Diphysa suberosa S. Wats., Jalisco. . 
TYPE LOCALITY: Rio Blanco, Guadalajara, Mexico, on Diphysa suberosa. 
DISTRIBUTION: Known only from the type locality. 
2. Calliospora Holwayi Arth. Bot. Gaz. 39: 390. 1905. 
O. Pycnia epiphyllous, numerous over areas 2-7 mm. across, punctiform, golden-yellow 
becoming brown, subcuticular, conical, 80-125 wide; ostiolar filaments 45-65 long. 
III. Telia epiphyllous, scattered, sometimes confluent, small, round, 0.3-0.7 mm. 
across, chocolate-brown, somewhat pulverulent, ruptured epidermis noticeable; teliospores 
elliptical, 26-34 by 40-51, rounded at both ends, slightly or not constricted at septum ; 
wall laminate, inner layer chocolate-brown, thick, 3-4, pores 2 in each cell, lateral and 
opposite, outer layer colorless, gelatinous, 2-3 thick in water, smooth; pedicel colorless, 
as long as the spore, swelling in water to the diameter of the spore and bursting. 
ON FABACEAE: . . 
Eysenhardtia amorphoides H.B.K., Jalisco, Oaxaca. 
Eysenhardtia orthocarpa (A. Gray) S. Wats., Oaxaca. . 
TyPE LOCALITY: Etla, State of Oaxaca, Mexico, on Eysenhardiia orthocarpa. 
DISTRIBUTION: Southern Mexico. 
3. Calliospora Farlowii Arth. Bot. Gaz. 39: 391. 1905. 
O. Pyenia caulicolous and sparingly on the midrib on both sides of the leaf, small, 
punctiform, yellowish-brown, subcuticular, conoidal, 80-100 wide; ostiolar filaments 
25-40 # long. 
III. Telia caulicolous, linear, 2-3 mm. long, causing hypertrophy, crowded, often con- 
fluent, early naked, cinnamon-brown, very pulverulent, ruptured epidermis noticeable; 
teliospores elliptical, 18-24 by 29-42 u, rounded at both ends, slightly or not constricted 
