66 
Mycologia 
was obtained. Cultures were attempted on Menyanthes and 
Decodon in 1907, also without results.® 
5. Uromyces Sporoboli E. & E. — While on a visit to Mr. E. 
Bartholomew at Stockton, Kans., in August, 1911, the spot was 
pointed out where this rust on Sporobolus longifolius had been 
observed for several seasons following close upon a luxuriant 
development of an Aecidium on Allium reticulatum, as if the two 
might have genetic connection. Excellent material for testing 
the assumption was supplied the following spring, and a sowing 
was made April 29, 1912, upon Allium reticulatum, and also on 
Malvastrum coccineum, Cassia chamaecrista, Baptisia bracteata, 
Apios tuberosa, Corydalis aurea, Zanthoxylum americanum, 
Physalis pubescens^ Asclepias verticillata, Vagnera stellata, and 
Erigeron annuus, all known to have aecia of uncertain connection, 
but without infection.® 
Successful cultures supplementing previous work. — The 
facts derived from growing the following species of rusts supple- 
ment those obtained from previous cultures in this series or from 
cultures recorded by other American or European investigators. 
In some cases the additional information recorded is of as great 
value as if it were entered under the next heading of cultures not 
before reported. For instance, the hitherto accredited species, 
Puccinia vulpinoidea, P. Dulichii, and P. tosta, are reduced to 
synonymy, and in so far simplify the naming of collections, beside 
permitting of a clearer conception of the variation of specific 
characters. A few cultures were made which are not reported, 
as they add no new facts to those already established. 
Cultures of 1912 
I. Puccinia Grossulariae (Schum.) Lagerh. — The follow- 
ing successful cultures were made, all being sown on Ribes Cy- 
nosbati. 
From Carex pubescens, Lafayette, Ind., sown April 20, showing pycnia 
April 29, and aecia May 9. 
6 Jour. Myc. 14: 12. 1908. 
0 For previous attempts see Bot. Gaz. 35 : 1 1. 1903 ; and Mycol. i : 13. 1912. 
