( 
— 9 — 
Hab. Ad folia et caules Modiolae carolinianae in sylvis San Fer- 
nandensis rarissime est. 
45. ÁECIDIUM TORDILLENSiS Speg. 
Obs. Macullis nullis. Aecidiis hypophyllis, aurantiis, 0,5 ram. 
diara. 
Aecideisporis globosis v. sub-elipticis, laeve granulosis, diam. 
18-20 ¡/.. 
ílab. Ad folia viva Euphorbiae serpentis var. microphylla ad fe- 
rram viam prope San Fernando. 
IY. Gen. UREDO Lév. 
46. Uredo holmbergii Speg. 
Obs. Maculis parvis paliescentibus, soris hypophyllis erumpen- 
tibus íuscis ferrugineis, parvis plus minusve 0,5 ram. diam. 
Uredosporis sub-globosis farcte granulosis, dense tunicatiis, 
diam. 20-22 p,., 1 vel bi-guttulatis. Episporio echinulato. 
Hab. Ad folia viva Mitraccirpi sellowiani in sylvis prope Punta 
China (Prov. Buenos Aires), 1902. 
47. Uredo hydrocotylis (Mntgn.) Gay 
Obs. Maculis pullescentibus v. laeve flavescentibus. Soris hypo- 
phvllis rara epiphyllis, nec vel rarissime cauligenis-ferrugi- 
neis, confluentibus, semi erumpentibus 0,3-0,8 mm. diam. 
Uredosporis globosis, dense tunicatiis, 1 guttulatis 28p. diam. 
Episporio laeve echinulato. 
Hab. Vulgatissime ad folia viva et lánguida Hydrocotylis bona- 
riensis prope Bonaria. 
48. Uredo rubigovera DC. 
Syn. Trichobasis rubigovera Lév. 
Obs. Species typica. Uredosporis globosis 25-28 [/.diam. 
Hab. Ad folia viva Panici coloni. Paraná Guazú, 1902 (vide Ure- 
dineas rec. delta Paraná, in Anal . Soc . Cient. Arg vol LUI, 
fol. 269, núm. 27), et ad folia lánguida Setariae setosae, pro¬ 
pe San Fernando, 1903. 
