504 ARTHUR: RELATIONSHIP OF GENUS KUEHNEOLA 
Diet., Kuehneola obtusa Arth.), on Potentilla sylvestris (P. 
Tormentillae, Tormentilla erecta), P. procumbens, P. mixta, P. 
reptans, P. canadensis, Europe and North America. 
In Sydow’s Monographia Uredinearum (3: 105, 106), where 
the primary uredinia are described as aecia, the European and 
American forms are assigned to separate species distinguished by 
the different number of cells in the teliospores, but in the examina- 
_ tion of a large number of collections of each no such difference 
has been detected. The description of the type species by Strauss 
is that of the telia, and his illustration shows a teliospore, although 
Strauss placed his species under Uredo. 
Frommea Duchesneae (Arth.) comb. nov. (Kuehneola Duchesneae 
Arth., Phragmidium Duchesneae Syd.), on Duchesnea indica, 
North America. 
Frommea Polylepidis sp. nov., on Polylepis sp., Corazon, Ecuador, 
October, 1891, G. Lagerheim. 
Uredinia hypophyllous, scattered, round or oblong, 80-160 yu 
across, soon naked, somewhat pulverulent, dirty white, ruptured 
epidermis evident; paraphyses none, urediniospores obovoid or 
ellipsoid, 10-16 by 19-25 4; wall light yellow to colorless, 1-2 » 
mrss evenly and moderately verrucose-echinulate, the pores 
obscure 
Telia unknown. : 
-The genus Frommea differs from Phragmidium, not only in 
having nearly or quite smooth teliospores, with one apical pore 
in each cell, instead of tuberculate teliospores with more than 
one pore and lateral in each cell, but also in possessing no aecia 
proper with catenulate spores, but instead having primary uredinia 
with pedicellate spores. The primary uredinia are circinnate 
about the pycnia, epiphyllous, large and much resembling in 
gross appearance the caeoma of a Phragmidium. 
The next group of species to be considered consists of the two 
species on Malvaceae, placed by the writer under Kwehneola in 
1912 (N. Am. Flora 7: 187), and accepted as such by subsequent 
writers, The discovery of the telia in this group was made in 
March, 1911, by Mr. C. R. Orton, then a member of the laboratory 
force, now assistant professor of botany in the Pennsylvania 
State College, who found them on Malvaviscus Drummondii T. & 
