vin.] NEW DISEASE OF ONIONS. 43 



FL, have not yet been seen to germinate in this country, 

 and the different experiments made in that direction by 

 Mr. Phillips all failed, as he at the time foresaw they 

 would do. The teleutospores of Puccinia mixta, FL, as 

 found in this country in July 1882, will probably not 

 germinate before the forthcoming spring or summer ; we 

 shall then know whether the species is here capable of 

 being artificially spread on to other members of the genus 

 Allium. It is supposed that the fungus, long known as 

 British under the name of Gar lie Rust, Uromyces alliorum, 

 D.C., and sometimes as Uredo alliorum, D.C., or Uredo 

 porri, Sow., is possibly one form of the plant now before 

 us. It grew with the Puccinia on the same plants of 

 chives at Shrewsbury. On the Continent there is a 

 Puccinia named P. allii, Rud., found on Wild Garlic, 

 A Ilium ursinum, L. ; and another bearing the same name 

 is found on A. oleraceum, L., which is the same as A. 

 virescens, D.C. It is probable that neither of these two 

 fungi (each named Puccinia allii) are the same with each 

 other or with our P. mixta, Fl. 



On the Continent Puccinia mixta, Fl., is said to grow in 

 three distinct forms on the same host plants. These forms 

 have been termed the dEcidium, the Uredo, and the Puccinia 

 forms ; dEcidium and Uredo are fully described under Puc- 

 cinia graminis, Pers., one of the fungi of corn mildew. At 

 present the ^cidium, supposed to belong to P. mixta, FL, 

 has not been found in Britain. Elsewhere in Europe P. 

 mixta, FL, grows on various species of Allium, inclusive of 

 chives, A. schcenoprasum, L. It has been recorded on 

 A. acutangulum, Schrad. ; on the Garlic, A. sativum, L. ; 

 the Rocambole, A. ophioscorodon, Don. ; the Wild Rocam- 

 bole, A. scorodoprasum, L. ; the Leek, A. Porrum, L. ; A. 

 rotundum, L. ; the Onion, A. Cepa, L. ; the Welsh Onion, 

 A. fistulosum, L.; A. carinatum, L. ; A. palustre, Pourr. ; 

 A. flavum, L. ; A. stellatum, GawL, and no doubt others. 

 As we have all these plants in our gardens, it is of course 

 possible, and perhaps probable, that they may soon act as 



