156 NORTH AMERICAN FLORA [VoLUME 7 
III. Telia hypophyllous, scattered, similar to uredinia but chestnut-brown and some- 
what pulverulent; teliospores ellipsoid, 21-25 by 27-34 », rounded at both ends, partly 
umbonate above, slightly constricted at septum ; wall obscurely laminate, chestnut-brown, 
medium thick, 2.5-3.5 2, thicker and paler at umbo, 3-5, minutely verrucose, appearing 
smooth, pores two in each cell and lateral, or one of those in upper cell in the umbo; 
pedicel colorless, thin-walled, fragile, partially deciduous, appearing short. 
ON BERBERIDACEAE: 
eens trifoliolaia (Moric.) Fedde (Berberis trifoliolata Moric., B. trifolhata Hartw.), 
‘exas. 
TYPE LOCALITY: Austin, Texas, on Berberis trifoliolala. 
DISTRIBUTION: Known only from the type locality. 
ILLUSTRATION: Holway, N. Am. Ured. 1: pl. 4, f. 19. 
3. Uropyxis Nissoliae (Dietel & Holway) Magn. Ber. Deuts. Bot. 
Ges. 17: 115. 1899. 
Puccinia Nissoliae Dietel & Holway, Bot. Gaz. 24: 27. 1897. 
O. Pycnia epiphyllous, few in small groups, punctiform, golden-yellow becoming 
brown, subcuticular, conoidal, 90-1104 broad and half as high. 
II. Uredinia hypophyllous, scattered or in crowded groups, round, small, 0.1-0.2 mm. 
across, soon naked, pale cinnamon-brown, ruptured epidermis, rather inconspicuous ; para- 
physes peripheral, few, erect, clavate, 15-22 by 30-45, wall colorless, thin, about 1,, 
smooth; urediniospores broadly ellipsoid or globoid, 12-15 by 14-20; wall pale-yellow, 
thin, 14, echinulate-verrucose, pores small, 6 or more, very obscure. 
III. Telia hypophyllous, at first arising from the uredinia, scattered, round, small, 
0.2-0.5 mm. across, soon naked, chocolate-brown, pulverulent, ruptured epidermis mostly 
inconspicuous; paraphyses none; teliospores elliptical, 25-27 by 32-40, rounded at both 
ends, scarcely constricted at septum; wall laminate, inner layer chestnut-brown, 2.5-3.5” 
thick, pores 2 in each cell, lateral and opposite, outer layer pale amber-colored, gelatinous, 
1.5-2 thick in water, closely verrucose; pedicel colorless, half as long as the spore, terete, 
solid, not swelling in water, 5-6 thick, fragile. 
ON FaBACESE : 
Nissolia confertifiora S. Wats., Jalisco. 
Nissolia hirsuta DC. Jalisco, Morelos. 
Nissolia laxior Rose, Jalisco. 
Nissolia multifiora Rose, Oaxaca. 
TYPE LOCALITY: Guadalajara, Mexico, on Wissolia confertifiora. 
DISTRIBUTION : Southern Mexico. 
Exsiccatr: Sydow. Ured. 1524. 
4. Uropyxis Petalostemonis (Farl.) De-Toni, in Sacc. Syll. Fung. 7: 
735. 1888. 
Puccinia Petalostemonis Farl.; Trelease, Trans, Wis. Acad. 6: 129. 1884. 
OQ. Pyenia hypophyllous, scattered among the uredinia, brownish-yellow, punctiform, 
inconspicuous, subcuticular, conoidal, small, 80-120 # broad, and half as high. 
II. Uredinia hypophyllous, scattered, round or oblong, 0.2-0.5 mm. long, soon naked, 
pale cinnamon-brown, pulverulent, ruptured epidermis conspicuous ; paraphyses peripheral, 
numerous, incurved and variously bent, linear or linear-clavate, 7-16 by 40-65, wall pale- 
yellow, thick, 3-5, often obliterating the lumen, smooth; urediniospores oblong or obo- 
vate, 18-21 by 21-26; wall medium thin, 1.5-2, pale-yellow, closely verrucose, pores 6-8, 
scattered, moderately distinct. 
III. Telia hypophyllous, scattered, round or oblong, 0.2-0.5 mm. long, soon naked, 
dark chocolate-brown, pulverulent, ruptured epidermis somewhat noticeable; paraphyses 
as in uredinia; teliospores elliptical, 21-29 by 39-45, rounded at both ends, slightly con- 
stricted at septum; wall laminate, inner layer chestnut-brown, 2-34 thick, pores 2 in each 
cell, lateral and opposite, outer layer pale amber-color, gelatinous, 1.5-2 thick in water, 
closely verrucose; pedicel colorless, short, not swelling in water, terete. 
