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CLASSIFICATION OF THE UREDINES. 
By Mr. C. B. PLowricnt.* 
Tue following arrangement of British species is founded upon that of Schroter, as 
modified and applied by Dr. Winter and the present writer. 
Unromyces, Link. 
A. Lepturomyces. Teleutospores only ; which germinate at once. 
B. Micruromyces. Teleutospores only, which easily fall from their 
stems. and germinate only after a period of rest. 
U. ficarice, Schum. ; U. ornithogali, Walir. ; U. scillarum, Grev. 
C. Hemiuromyces. Uredo and teleutospores. 
U. scutellatus, Schr. (U. excavata, DC.); U. tuberculatus, Fckl. ; U. rumicis, 
Schum. (U. apiculatus; U. bifrons, DC.); U. alchemille, Pers. (U. intrusa, 
Lev.); U. sparsus, Kze. and Schm. 
D. Uromycopsis. Aicidio—and teleutospores. 
U. scrophulariw, DC. (U. concomitans, B. & Br.): U. behenis, DC. 
E. Huromyces. Having ecidio, uredo, and teleutospores. 
(a.) Awtewromyces. All three spore forms on the same host plant. 
U. polygoni, Pers. ; U. bet, Pers.; U. salicornie, DC.; U. limonii, DC. ; 
U. valeriane, Schum. ; U. phaseoli, Pers. (U. apiculatus); U. orobi, Pers. (U. fabs, 
Pers.) ; U. trifolii, A. & S.; U. parnassie, Grev. 
(b.) Heterewromuces. Spermogonia and excidio-spores upon one host-plant ; 
uredo and teleutospores upon another. 
U. dactylidis, Otth. (U. graminum, Cke.); Aicidiospores on Ranunculus 
acris, repens, and bulbosus. Teleutospores on Dactylis glomerata. 
U. poe, Rabh. AXcidiospores on Ranunculus ficaria. Teleutospores on Poa 
nemoralis, and P. pratensis (not British). 
U. junci, Desm. Aicidiospores on Inula dysenterica, L. Teleutospores on 
Juncus obtusifolius, Ehr. 
U. pisi, Pers. Aicidiospores on Luphorbia cyparissias, L. (British?). Teleu- 
tospores on Vicia cracca, L.; Pisum arvense, L., Pisum sativum, L., Lathyrus 
tuberosus, L., Lathyrus 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. Scorodonize, Dk.) ; P. verrucosa, Schultz 
(P. glechomatis, DC.): P. veronice, Schum.; P. asteris, Duby. (P. millefolii, 
Fekl.); P. valantie, Pers. (P. acuminata, Fckl.); P. chrysosplenii, Grev.; P. 
* For remarks upon this Classification, see Grevil/ea, page 151 of Vol. xi., 1882-83; and Mr. 
Plowright’s reply on page 36 of No. 61, for September, 1883. 
