APPENDIX. 213 



Uromyces Sorophularise, C. Figwort Rust ; spots 

 pallid; sori subrotimd, oblong or linear and confluent, surrounded 

 by the ruptured epidermis ; spores subglobose or oval, brown, on 

 long peduncles. — On leaves of ScropJmlaria aquatica. 



Uromyces Geranii, C. Geranium Rust ; spots yellowish ; 

 sori subrotuud, nearly plane, scattered or confluent; pseudo-spores 

 obovate, brown, on distinct peduncles. — On leaves of Geranium. 



Uromyces concom.itans, B. and Br. Sori crowded in a 

 ring, irregular, plane ; pseudo-spores obovate, even ; pedicels 

 attenuated downwards. — On Scrophiduria nodosa, surrounding 

 pustules of jEcidium. 



Uromyces Betse, Kuhn. Sori rounded, scattered, mixed 

 with tlie Trichobasis, dark-brown ; pseudo-spores obovate, brown, 

 smooth, with a slisbt hyaline point at the apex, on short peduncles. 

 — On leaves of Beta vulgaris. Distinct from Trichobasis Betce^ 

 of which it is possible this may be a development. 



Uromyces excavata, DC. Spots none or yellowish ; sori 

 scattered, surrounded by the inflated epidermis ; spores brown, 

 obovate, shortly pedunculate, or almost sessile. — On Euphorbia 

 exigua. 



Uromyces Behenis, Lev. Pustules subrotund or con- 

 fluent, for a long time covered by the cuticle ; spores coherent, 

 07oid, brown, on long hyaline pedicels. — On leaves and stems of 

 Bladder Campion. 



Uromyces Junci, Tul. Pustules linear or confluent, 

 crowded, rather convex, dark-brown; pseudo-spores oblong, 

 brown, on long peduncles.— On rushes. 



Uromyces intrusa, Lev. Lady's-mantle "Rust ; on the 

 under surlace, scattered, or partially aggregate, reddisli-brown, 

 rounded, somewhat prominent, minute, very unequal ; spores 

 roundish or oval.— On Alchemilla vulgaris. This is the TracJiy- 

 spora Alchemillce of some authors, of which TJredo Alchemilla is 

 an early condition or protospore. 



Uromyces concentriea, Lev. Hyacinth Rust ; spots 

 oblong or subrotund, crowded into patches, concentrically ar- 

 ranged ;epidermis bursting longitudinally ; spores rusty, obovate, 

 shortly peaicellate.— On wild Hyacinth. 



Uromyces Polygoni, Fuckel. Knotgrass Rust ; cauline ; 

 sori elongated and coutluent, convex, surrounded by the remains 

 of the ruptured epidermis; spcridia sub-globose or globose, 



