]\IILDEWS, RUSTS AND SMUTS 
75 
On leaves and stems of Faha vulgaris, Vida cracca, V. 
sepium, V. saliva, Lathyrus pratensis, Pisuni sativum, 
and other species of leguminous plants. Europe, N. 
Africa, N. and S. America, Asia Minor, India, Japan and 
Australia. 
The parasite has undoubtedly followed its host-plant, 
when of economic importance, to some of the countries 
indicated. 
The uredospore has 3—^4 germ-pores. 
Uromyces orobi. Lev., Plowr., Ured., p 121. 
Pycnidia. On the under surface of the leaf, amongst 
the aecidia. 
Aeddia. On yellowish spots on the under surface of the 
leaf, scattered or in circular or olbong groups, edges whitish, 
torn ; spores angularly-globose or elliptical, minutely 
wanted, orange, 14—27 p. 
Uredospores. Sori on both sides of the leaf, minute, 
crowded or scattered, soon powdery, brown ; .spores 
globose, subglobose or ovate, sparsely echinulate, pale 
brown, 15—28 x 16—25 p. 
Teleutospores. Sori like those of the uredospores in form, 
blackish ; spores subglobose, ovate or elliptical, tip rounded 
or truncate, much thickened, smooth, brown, 25-—^40 X 
18—28 p. 
Svn. Aeddium orobi, Pers. 
^ * _ 
On Lathyrus macrorhizus (Orohus tuherosus). Europe 
generally. 
Uromyces appendiculatus, Link. 
Pycnidia. Arranged in small, whitish spots. 
Aeddia. Seated on yellowish or brownish spots on the 
under surface of the leaf, white, edge recurved and torn ; 
spores subglobose or oblong, minutely warted, colourless, 
18—36 X 15—24 p. 
Uredospores. Sori mostly on the under surface of the leaf, 
minute, scattered, or clustered here and there, soon naked 
and surrounded by the torn epidermis, cinnamon ; spores 
subglobose or broadly elliptical, echinulate, pale brown, 
18—34 X 15—22 p, 2 germ-pores. 
Teleuto spores. Sori similar to those of the uredo stage, 
but dusk}^ brown or black ; spores subglobose, ovate or 
elliptical, tip rounded, usually with a rather large, pale 
papilla, smooth, or especially near the tip, with scattered, 
minute pale warts, chestnut-brown, 24—35 X 18—36 p, 
pedicel almost colourless, about the length of the spore. 
