ARTHUR: RELATIONSHIP OF GENUS KUEHNEOLA 503 
as close as had been assumed. The matter was especially brought 
to my attention by Dr. F. D. Fromme, while a member of my 
laboratory force, and has since been considerably elucidated. 
Recently the statement of Dietel,* made a number of years since, 
was brought to mind, and as he has covered the chief item in 
question very succinctly, I can not do better than present his 
words in English form. Dietel says: ‘‘The so-called teliospores 
of Kuehneola are spore-chains, series of one-celled single spores, 
which are successively abstricted one after the other from the 
apex of a common hypha, and remain united fast with one an- 
other.” This statement by Dietel applies to the members of the 
genus Kuehneola as represented by the forms on Rubus and 
Markhamia, but not to the forms on Potentilla and Duchesnea 
that the writer placed under that genus, although there is much 
similarity in appearance between the two. The latter have the 
teliospores distinctly stalked. They are morphologically in regard 
to their septation like the teliospores of Phragmidium, under 
which genus they are usually placed, but have single, apically 
placed pores in each cell, and the spores are smooth. For such 
forms I propose the following new genus, named in honor of Dr. 
F. D. Fromme, professor of botany in the Virginia Polytechnic 
Institute, whose clear thinking and cogent reasoning have much 
enriched botanical science. 
Frommea gen, nov. - 
Cycle of development includes pycnia, primary and secondary 
uredinia and telia; autoecious. Pycnia subcuticular, other sori 
subepidermal. 
-Pycnia with flat hymenium and without ostiolar filaments. 
Uredinia with few or no paraphyses, the urediniospores borne 
singly on pedicels, pale, and with pores indistinct, usually equa- 
orial. 
Telia without paraphyses, the teliospores free, pedicelled, 
serially several-celled, rarely one-celled, colored, the wall smooth, 
the pores single and apically placed in each cell. 
Type Uredo obtusa Strauss, on: Tormentilla erecta. 
Frommea obtusa (Strauss) comb. nov. (Uredo obtusa Strauss, 
Phragmidium Tormentillae Fckl., P. Potentillae-canadensis 
* Ann. Myc. 10: 205. 1912. 
