12 FUNGOID PEST8 OF CULTIVATED PLANTS. 



but al<n on cultivated Lupins, as Lupinus luteus and Lupinus alius 

 in Great Britain, Germany, and Italy, and appears on the foliage. 



The pustules <>f the undo are rounded, rather small and of a reddish 

 or chestnut-brown. The uredospores, which are soon set free hy the 

 rapture of the cuticli . lobose and rough (22-21 fi diam.), of a pale 



chestnut-brown colour. 



Th« i or brand spore-, air produced in dark brown 



• shortlj elliptical, almost globose (19-22 x 17-20 fi), 

 .lark brown, clad with obtuse Btoutish warts, growing at first on a slender 

 hyaline pedicel, which soon falls away. 



If applied early, fungicides will prevent the spread of this disease, 

 but the teleutospores are capable of acting as resting spores, carrying the 

 !i the w inter. 

 . S\ I. vii. 1966; OrevUle Eng. Flor. v. p. 383; Plowr. Brit. 



Another species [Uromyces Lupini) is found on the same Lupins in 

 . . <m rmany, and Egypt, with smooth uredospores and smaller teleuto- 

 The North American species is again different. 



DISEASES OF ROSES. 



innately the diseases to which cultivated Roses are subject in this 



v. and one of the most dangerous, the rot-mould, is rare. 



The common rose mildew is most troublesome and unsightly, and one or 



two of the others are very persistent, but they do not threaten Rose 



culture as that of some other flowers has been threatened. 



Rose Leaf-spot. 



Septoria E 'nun (West), PL 111. fig. 49. 



our knowledge and experience go, the loaves of cultivated 

 Liable to Bpotting by three different fungi, belonging to the 

 ria, with threadlike spores. The one recorded as British is 

 named abo 



White rounded spots, to the number of ten or fifteen, occur on tho 



urface of the leaf, urrounded by a rather broad purple border. 



vhikI then the minute receptacles of the fungus are dotted over the 



but tie . often wanting, as they are upon similar spots on 



Th< i. when pn nit, contain long threadlike sporules (50- 



p), which are furnished with b row of from three to six nuclei, 

 ultimately divided h i pta into about six cells. 



l< d for Britain, Belgium, and Italy. 

 Spray \\ itb < opp< r solution. 



2611 1 < ■ Edbk. No. 1828. 



Allot! under the name of Septoria Rosa-simnsis, is recorded 



for Italy and Portugal, but the pah ipots have a brownish margin. Tho 

 rules s. be the same, and possibly it is identical with the above. 



