pucciNiA. 355 



P microsora Kuril. On Carex vesicaria. 



P. caricicola Fiick. On Carex supina. 



P. allii (D. C.). Onion-rust. (U.S. America.) 



P. iridis (I). C). On Iris. (Britain.) 



P. veratri Niessl. On Veratnim album and T'. viride. (U.S. America.) 



Puccinia pruni Pers. Plum or Prune Eust. [This is a 

 common species in both Europe and the United States ; it 

 attacks almost every kind of cultivated drupaceous fruit, includ- 

 ing prune, plum, peach, nectarine, apricot, cherry, and almond. 

 The uredospores are brown, the teleutospores darker, and both 

 are as a rule found only on the under surface of the leaf 

 (Fig. 82). The leaves first show yellowish or reddish spots 

 which rapidly enlarge and darken in colour till rupture of the 

 epidermis takes place, and they rapidly dry up. The fruit is 

 thus altogether lost or much injured, while ripening of the wood 

 is more or less interfered with. 



The remedies suggested are : sprayings with modified eau 

 celeste, or amraoniacal copper carbonate (see p. 09)].^ (Edit.) 



P. cerasi (Bereng.) Clierry-nust on Primus Cerasus, P. Amygdalus, 

 and I\ Persica. 



P. oenotherae Yize. On American species of Oenothera. 



P. giliae. Hark. On Phlox and Gilia. (U.S. America.) 



P. tanaceti D. C. On Tanacetum vulgare. (Britain and U.S. America.) 



P. sonchi Eob. et Desm. On Sonchus. (Britain.) 



P. end i viae Pass. On Cichoria Endivia in Italy. 



P. carthami Corda. On Carthamiis tinctoria. 



P. balsamitae (Strauss). On Tanacetum Balsamita. 



P. picridis Ilaszl. On P/'cris in Hungary. 



P. bistortae (Strauss) (Britain and U.S. America). On Polygonum 

 Bisturta and /'. viviparum. The teleutospores have no papilla on their 

 germ-pores. Soppitt {Grevillea, 1894) claims relationship between this 

 species and an Aecidium on Conopodium demtdatitm (Aec. Im7iii(])). 



P. mammillata Schroet. (U.S. America). On Pohfgomim Bistorta. The 

 upper cell of the teleutospore has an apical thickening. 



P acetosae (Schum.). On Rumex Acetosa, R. arifolia, and R. Acetosella. 

 Ludwig says it hibernates in the uredo-form. 



P. polygoni Pers. (Britain and U.S. America). On Polygoneae. 



P. rumicis-scutati (D. C). On Polygoneae. 



P. oxyriae Fuck. (Britain and U.S. America). On O.ryria. 



P. castagnei Thlim. On Apium graveolens in France. 



P. cicutae Lasch. On Cicuta virosa. 



'Pierce (Journal of Mycoloriy, vii. , p. 354) gives an account of this disease as 

 fountl in California, and describes application and results of various remedies. 



