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CLASSIFICATION OF THE UREDINES. 
By C. B. Plowright.* 
The following arrangement of British species is founded upon 
that of Schroter, as modified and applied by Dr. Winter and the 
present writer. 
UROMYCES, Link. 
A. Lepturomyces. Teleutospores only ; wliich germinate at 
once. 
B. Micruromyces. Teleutospores only, which easily fall from 
their stems, and germinate only after a period of rest. 
U. ficaria, Schum, ; U. ornithogali, Wallr. ; U. scillarum , Grey. 
C. Hemiuromyces. Uredo and teleutospores. 
U. scutellatus , Schr. (U. excavata, DC.) ; U. tuberculatus , Fckl. ; 
U. rumicis , Schum. (U. apiculatus ; U. bifrons, DC.) ; U. alche- 
milla , Pers. (U. intrusa, Lev.) ; U. sparsus, Kze. & Schm. 
D. Uromycopsis. iEcidio — and teleutospores. 
U. scrophularia, DC. (U. concomitans, B. fy Br .) ; U. behenis 
DC. 
E. Euromyces. Having secidio, uredo and teleutospores. 
(a.) Auteuromyces. All three spore forms on the same host 
plant. 
V. polygoni , Pers. ; U. beta, Pers. ; U. salicornia, DC. ; U. 
limonii, DC. ; U. valeriance, Schum.; U. phaseoli, Pers. (U. api- 
culatus) ; U. orobi , Pers. (U. fabae, Pers.) ; U. trifolii , A. & S. 
U. parnassice, Grev. 
(b.) Heter euromyces. Spermogonia and aecidio- spores on one 
host-plant, nredo and teleutospores upon another. 
U. dactylidis, Otth. (U. graminum, Cke.) ; iEcidiospores on 
Ranunculus acids, repens , and bulbosus. Teleutospores on Dactylis 
glomerata. 
U. poce, Rabh. iEcidiospores on Ranunculus ficaria. Teleuto- 
spores on Poa nemoralis and P . pratensis (not British.) 
U. junci, Desm. iEcidiospores on Inula dysenterica, L. Teleu- 
tospores on Juncus obtusifolius, Ehr. 
U. pisi, Pers. uEcidiospores on Euphorbia cyparissias, L. 
(British?) Teleutospores on Vicia cracca, L.; Pisum arvense, 
L., Pisum sativum , L., Lathyrus tuberosus , L., I^athyrus pratensis, 
L., and L. sylvestris. 
PUCCINIA, Pers. 
A. Leptopuccinia. Having only teleutospores which are firmly 
fixed to the host-plant, and germinate at once while still attached. 
P. buxi , DC.; P. annularis, Str. (P. Scorodonia?, Lk.)\ P. 
verrucosa , Schultz (P. glechomatis, DC.) ; P. veronica, Schum. ; 
* Read before the Birmingham Natural History and Microscopical 
Society, 20th Feb., 1883. We are unable for lack of space to print the 
introductory observations. — E d. 
