THE UREDINALES FOUND UPON THE ONAGRACEAE 
533 
Chamaenerion 
Western N. A.; Eur.; O, I, II, III; 
III spores to 40^1, I spores usually to 20 /z. * 
Puccinia Gayophyti race of Puccinia Epilohii-tetragoni. 
N. A.; Eur.; O & I 
I often to 24 ju. Puccinia Veratri. 
N. A.; Eur.; II & Ill only; 
III spores often within epidermis. Pucciniastrum pustulatum. 
Western N. A.; Eur.; Ill only; 
III spores to 60 ix. Puccinia gigantea. 
Epilobium 
Teliospore apex thickened. 
As first three under r Puccinia Gayophyti race of Puccinia Epilohii-tetragoni, 
Chamaenerion. "j Puccinia Veratri, 
^ Pucciniastrum pustulatum. 
Eur.; O, I, III. Puccinia Epilobii-Fleischeri. 
Afr. ; uncertain. Puccinia Krookii. 
Teliospore apex little thickened 
N. A.; Eur.; Ill only, 
III spores 13-18 by 27-37 ju. Puccinia scandica. 
Ill spores 17-25 by 30-44 At. Puccinia Epilohii. 
Boisduvalia glabella only; Western N. A.; (O, I), II, 
III Puccinia glabella race of Puccinia Epilohii-tetragoni. 
Taraxia; Western N. A.; O, I, II, III 
Puccinia heterantha race of Puccinia Epilohii-tetragoni. 
Boisduvalia (P. Boiduvaliae) 
Chylisma {P. Oenotherae) 
Eulobus (P. Eulobi) 
Clarkia > 
Godeiia >■ (P. Clarkiae) 
Phaeostoma-^ 
Sphaerostigma (P. Sphaerostigmatis) 
Zauchneria (P. Zauchneriae) 
Gaura 
N. A.; O, I, II, III; aecia diffused Uromyces gauri- 
nus race of Uromyces plumb arius. 
N. A.; O, I; aecia grouped. Puccinia Peckii. 
Kneiffia; N. A., O, I, II, III. 
Uromyces Oenotherae race of Uromyces plumbarius. 
Oenothera 
N. A.; O, I, grouped. Puccinia Peckii. 
N. A.; O, I, II, III; aecia diffused. 
Ill spores one-celled. 
Uromyces Oenotherae race of Uromyces plumbarius. 
Ill spores two-celled. 
IPuccinia Oenotherae race of Puccinia Epilohii-tetragoni. 
O, I, II, III; Puccinia Oenotherae race of 
Western N. A.; Pticcinia Epilohii-tetragoni. 
