Uromyces pisi-sativi (Pers.) Liro 1908

Foodplant / parasite
telium of Uromyces pisi-sativi parasitises live leaf (petiole) of Cytisus
Other: minor host/prey

Foodplant / parasite
mostly hypophyllous uredium of Uromyces pisi-sativi parasitises live leaf of Genista anglica
Other: minor host/prey

Foodplant / parasite
mostly hypophyllous uredium of Uromyces pisi-sativi parasitises live leaf of Genista tinctoria
Other: minor host/prey

Foodplant / parasite
telium of Uromyces pisi-sativi parasitises live leaf of Laburnum

Foodplant / parasite
telium of Uromyces pisi-sativi parasitises live Ulex
Other: minor host/prey

Foodplant / parasite
telium of Uromyces pisi-sativi parasitises live Astragalus danicus

Foodplant / parasite
pycnium of Uromyces pisi-sativi parasitises live Euphorbia cyparissias

Foodplant / parasite
mostly hypophyllous uredium of Uromyces pisi-sativi parasitises live leaf of Lathyrus pratensis

Foodplant / parasite
telium of Uromyces pisi-sativi parasitises live leaf (petiole) of Pisum sativum

Foodplant / parasite
telium of Uromyces pisi-sativi parasitises live Lotus corniculatus
Other: major host/prey

Foodplant / parasite
telium of Uromyces pisi-sativi parasitises live Lotus angustissimus
Other: minor host/prey

Foodplant / parasite
telium of Uromyces pisi-sativi parasitises live Lotus glaber
Other: minor host/prey

Foodplant / parasite
mostly hypophyllous uredium of Uromyces pisi-sativi parasitises live leaf of Medicago arabica
Other: minor host/prey

In Great Britain and/or Ireland:
Foodplant / parasite
mostly hypophyllous uredium of Uromyces pisi-sativi parasitises live leaf of Medicago lupulina
Other: minor host/prey

Foodplant / parasite
mostly hypophyllous uredium of Uromyces pisi-sativi parasitises live leaf of Medicago polymorpha
Other: minor host/prey

Foodplant / parasite
mostly hypophyllous uredium of Uromyces pisi-sativi parasitises live leaf of Medicago sativa
Other: minor host/prey

Foodplant / parasite
telium of Uromyces pisi-sativi parasitises live Onobrychis viciifolia

Nigredo punctata (Schroet.) Arthur
Uredo Leguminosarum d Astragali a, 0, y Opiz, Seznam 151, hyponym. 1852.
Uredo acuminata Kirchner, Lotos 6 : 179. 1856Not Nigredo acuminata Arth. 1906.
Uromyces punctaius Schrot. Abh. Schles. Ges. 48 : 10. 1870-
Uromyces Astragali Sacc. Mycol. Ven. Specim. 208, hyponym. 1873.
Uromyces Oxytropidis J. Kunze ; Rab. Fungi Eur. 1793, hyponym. 1874.
Trichobasis Oxylropi Peck. Bot. Gaz. 4 : 218. 1879.
Uredo Oxytropidis De-Toni, in Sacc. Syll. Fung. 7 : 855. 1888.
Uromyces Euphorhiae-Astragali Jordi, Centr. Bakt. II. Abth. 11 : 790. 1904.
Pj^cnia chiefiy hypophyllous, scattered, from a diffused mycelium, conspicuous, honey-yellow becoming brownish, globoid, 145-160 ju in diameter; ostiolar filaments rather
long.
Aecia chiefiy hypophyllous, from a diffused mycelium, rather eveniy and extensively scattered, cupulate, 0.3-0.4 mm. in diameter; peridium colorless, the margin slightly recurved and somewhat lacerate; peridial cells rhomboidal, 10-15 /i thick, 18-25 m long, overlapping, the outer wall rather thick, 6-9 m, transversely striate, the inner wall thinner, about 3iu, finely verrucose; aeciospores angular-globoid, 15-21 m in diameter; wall colorless, thin, 1-1.5 ju, densely and finely verrucose. ,
On Euphorbiaceae : . « . ^ r j ■ * •
Euphorbia Cyparissias X,. and E. virgata Waldst. & Kit. , Europe ; not yet found m America.
Uredinia amphigenous, scattered, roundish, 0.3-0.8 mm. in diameter, soon naked, pulverulent, cinnamon-brown, ruptured epidermis not conspicuous ; urediniospores broadly ellipsoid, 16-23 by 19-30 ;i; wall light cinnamon-brown, 1,5-2 /x thick, moderately echinulate, the pores 3, 4, or often 5, scattered or oftentimes appearing approximately equatorial.

Uromyces pisi-sativi is a fungal plant pathogen.

It causes small orange dots on the lower side of leaves on Euphorbia cyparissias. It lives on Pisum and on Lathyrus and on other plants from the family Fabaceae.