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the hots; sori are therefore scattered. The tehospores are verrucose, 
the walls usually uniformly 2 ju thick. As previously indicated, 
Klebahn directed attention to the similarity of these teliospores to 
those of Puccinia Veratri. While this micro-form thus corresponds 
with the long-cycled Puccinia Veratri, the relation with Puccinia Epi- 
lobii-tetragoni, especially with some collections possessing less thickened 
apices, is evident. The correlations thus evidenced, belong, then, to 
both the second and third types as indicated early in this paper. 
15. Puccinia scandica Johans., Bot. Centralbl. 28: 395. 1886. 
Literature: Saccardo, Syll. Fung. 7: 680. 1888. Sydow, Monogr. Ured. i: 
427. 1903. Holway, N. Amer. Ured. i: 73. 1907. 
Specimens referred here have been collected a few times in North 
America. The chief difference from Puccinia Epilobii is in the smaller 
size of the teliospores, and the rather thicker apices, in collections con- 
sidered to be Puccinia scandica. Epilobium alpinum and Epilohium 
clavatum are the hosts known in North America. Epilohium alpinum 
is also an American host for what is considered to be Puccinia Epilobii. 
While the differences between these two short-cycled rusts appear to 
hold for North America so far as the few collections are concerned, 
further collections may possibly indicate that these two species belong 
together. This species shows more definitely the correlation with 
Puccinia Epilobii-tetragoni, especially the race upon Epilobium, and 
may also be considered to be correlated with Puccinia Veratri. 
16. Uredo oenothericola Speg., Anal. Mus. Nac. B. Aires 19: 318. 
1909. 
Literature: Saccardo, Syll. Fung. 21: 794. 1912. Spegazzini, Anal. Mus. 
Nac. B. Aires 23: 32. 1912. 
Spegazzini described this rust upon Oenothera mollissima, from 
South America. He refers again to it in his later publication cited. 
No specimens have been seen by the writer. No clues are evident 
from his description. What the significance is, of his statement 
"pedicello hyalino mox fatiscente (40-50 fx Ing. 5 ju crss.) saepe sufful- 
tae," is a question. It is not impossible that this rust may be the 
uredinial stage of some previously noted rust upon Oenothera. 
