THE UREDINALES FOUND LPCN THE ONAGRACEAE 
Taraxia ovata (Nutt.) Small {Oenothera ovata Nutt.), California. 
Taraxia subacaulis (Pursh) Rydb. {Oenothera heterantha Nutt.), Colorado, 
Idaho, Montana, Nevada, Utah, Wyoming. 
Zauchneria calif ornica Presl., California. 
Zaiichneria Garrettii A. Nels., Utah. 
Type Locality: France, on Epilobium tetragonum. 
Distribution: From the western part of the Dakotas westward to the coast, 
and from Alaska to New Mexico and California; also (in part) in Europe, Asia, 
Australia, and South America. 
Illustrations: Holway, N. Amer. Ured. i: pi. 33, f. 113a &f b; pi. 34, f. 113c 
to e, 114, 115a & h; pi. 35 J. 115 c to h; PI.36J. 116 and iiy. Beitr. Krypt. Schweiz 
22 : /. 118. 
ExsiccATi: Barth. Fungi Columb. 246g, 2558, 2721, 3750, 3752, 4767; Barth. 
N. Amer. Ured. 159, 295, 341, 356, 438, 439, 856, 953, 1148, 1252, 1262, 13^0, 1359, 
1440, 1579; Clements, Crypt. Form. Colo. 56 1', Ell. & Ev. Fungi Columb. 1851-, 
Ell. & Ev. N. Amer. Fungi 1846, 2986, 2995, 3139, 3140, 3477, Garrett, Fungi Utah. 
49, 50, 86, 92, no, 145, 162, i73 \ Sydow, Ured. 864, 865, 866, 874, 875, 881, 1063, 
1064, 1768, 1918, 1919. 
As the synonymy indicates, some fifteen separately described and 
named long-cycled autoecious species of Puccinia upon the Onagraceae 
have been here combined as one species. Several of these names have 
been considered to be synonyms by different authors. For example, 
Holway considers Puccinia pulverulenta and Puccinia intermedia to 
be synonymous with Puccinia Epilobii-tetragoni, and Puccinia Bois- 
duvaliae, Puccinia Clarkiae, Puccinia Eulobi and Puccinia Sphaero- 
stigmatis to be hardly distinguishable from Puccinia Oenotherae. 
Puccinia Gayophyti has been described three separate times by inde- 
pendent authors. Other earlier repetitions in description, under the 
same names, are not included. 
It was not without some hesitation that it was decided thus to 
combine all these forms. In first going over a few specimens of each 
species, for the sake of comparison, it was obvious that considerable 
differences existed. Some of the specimens showed dark, chestnut- 
brown teliospores, others lighter, cinnamon-brown; some specimens 
showed teliospores with scarcely thickened apices, others, thickened 
to 12 or 13 ju; some were verrucose, others smooth; the size of these 
spores varied considerably. It seemed that surely several species of 
rust existed upon these hosts, as other workers had concluded; to 
consider combining them appealed to the writer as an easy and there- 
fore inexcusable dodging of the issue. It was remembered, further, 
that this rust upon Epilobium occurs over most of the world; upon 
most of the other hosts, only in America. However, as the study 
