3S0 
HANDBOOK OF 
Section 2. Uredine.®. Brougn. 
Genus 11. UROMYCES. Link. 
Spermogonia mostly globose, immersed, neck conoid, rather 
prominent ; secidia regular, immersed, at first globose, then cup- 
shaped, open, mostly with a well-developed pseudoperidium ; 
uredospore-bearing sori flattened, teleutospore sori more or less 
powdery, flattened or pulvinate ; toleutospores continuous, pedicel- 
late, germinating by an apical pore ; sporidiola ovoid or ellipsoid, 
hyaline. 
1731. Uromyces trifolii. Hedw. Winter Pilze. 159. Sacc. 
Syll. 1925. 
Spermogones disposed in small clusters ; recidia orbicularly dis- 
posed, pseudoperidia cup-shaped, with a white, laciniate margin ; 
acidiospores 14-23 p, verruculose, pale orange ; uredospore sori 
rounded or elliptic, scattered, chestnut brown ; spores irregularly 
globose, or shortly elliptic, 22-26 x 18-20 p, aculeate, brown ; 
teleutospore sori smaller, rounded on the leaves, larger and elon- 
gated on the petioles, dark brown, bullate, teleutospores ellipsoid, 
globose, or pear-shaped, thickened at the apex, with a small, pale 
wart, 20-35 x 15-22 p, even ; pedicel more or less distinct, soon 
falling away. 
On clover. Victoria. 
1732. Uromyces bet®. Pers. Kuhn. Bot. Zeit. 1869, No. 
450. Sacc. Syll. 1928. 
Spermogones in small clusters ; secidia disposed on orbicular or 
oblong yellow spots ; pseudoperidia white, cup-shaped, with a 
fringed margin ; tecidiospores angular, globose or oblong, 22-26 
X 16-22 p, orange, even; uredospore sori cinnamon, or chestnut 
brown, orbicularly disposed, small ; uredospores elliptic, or sub- 
globose, 23-32 X 17-24 p, aculeate, or nearly even, yellow brown ; 
teleutospore sori dark brown, margined by the ruptured cuticle, 
scattered, or orbicularly disposed ; teleutospores ovate, or ellipsoid, 
with a wart-like papilla, 26-35 x 19-25 p, even, brown, with a 
thin, rather long peduncle, soon deciduous. 
On leaves of Beta. Victoria. 
1733. Uromyces vesiculosus. Wint. Hedw. 1885, p. 22. 
Sacc. Syll. 1955. 
Sori scattered or gregarious, often confluent, rounded, or 
irregular, covered by the cinereous vesicular epidermis ; uredo- 
spores subglobosc, elliptic or ovate, yellow brownish, densely 
warted, epispore thin, 26-35 x 19-24 p ; teleutospores globose, 
elliptic, ovate, or pear-shaped, 23-31 X 17-21 p, thickened at the 
apex, rounded, or with a broad apiculus, epispore thick, even, 
dark, bay brown when mature, with a long, thick, persistent 
pedicel. 
On leaves and stems of Zygophyllum ammophilum. Spencer’s 
Gulf. 
