Field evidence is conclusive that: (1) Coleosporium vlguierae is autoecious; (2) Puccinia conspicua on Festuca arizonica produces aecia on Helenium hoopesii; (3) P. aristidae on Aristida adscenslonis produces aecia on Boerhaavia (erecta?); (4) P. andropogonis on Andropogon hirtiflorus produces aecia on Oxalis amplifolia; (5) P. carnegiana on Dichelostemma pulchellum is autoecious and synonymous with P. nodosa; (6) P. conoclinii is autoecious; (7) P. schedonnardi on Muhlenbergia montana produces aecia on Sphaeralcea fendleri. Inoculation has proved that: (1) Puccinia dietelii on Chloris virgata produces aecia on Acalypha ostryaefolia; (2) P. diplachnis on Leptochloa dubia produces aecia (A. bouvardlae) on Bouvardia glaberrima; (3) P. leptochloae on Leptochloa filiformis produces aecia (A. talini)on Talinum paniculatum; (4) Uromyces commelinae on Commelina spp. produces aecia (A. eragrostidis produces aecia (A. anthericicola) on Anthericum torreyi.