DISEASES dut: to fuxgt, bacteria axd other lower plants 1375 



Exhausted propagation bed 



Slips I 



planted . 



(diseased) healthy 



Branches 



cured diseased 



Fallowed propagation bed 



Slips I Branches 



planted ^ , — 



(diseased) , healthy cured diseased 



Rupesti'i> <lu L'>t • 

 » metallic^ 



Riparia Gloirc . . 



3309 



Aramon X Rtip. G . 



BerlandierJ R. i. . 

 » » 2. . 



420 A 



1737 



2 000 

 I 000 



O 



45 

 40 



65 



72 



o 



3 



395 

 229 

 2S9 

 194 



234 

 o 



44 



iS 



108 



276 I 



136 ' 



143 



"5 



179 

 10 

 42 I 

 27 j 



124 



It remains to be seen whether this recovery taking place in the suniiner 

 is onh- temporary, or whether in reahty the vines infested with bramble- 

 leaf tend to recover in the course of time ; 200 affected slips of Rupestris du 

 Lot taken from the nursen,^ bed of Noto (Sicily), were planted in 1909 at Tro- 

 baso, near Lake Maggiore, in a soil which had before been put down to \4ne. 

 In the spring of 1909 there were rather frequent late frosts there, and the al- 

 ready developed and bareh' opened buds remained covered with snow for 

 a week. The first shoots which came out were very much curled, but in 

 the summer the branches recovered completely. In the following year, 

 1910, the spring buds were still slightly deformed, but the vines showed 

 vigorous growth in the summer. In 191 2 not the slightest trace of bramble- 

 leaf could be discovered any longer, and the growth was extremely vigorous. 



This result would seem to prove that slips suffering with " court-noue, " 

 even those of the most sensitive stock, such as Rupestris du Lot, can recover 

 from this disease in a few 3'ears if placed under conditions entirely favourable 

 to their taking root. 



DISEASES DUE TO FUNGI, BACTERIA 

 AND OTHER LOWER PLANTS. 



1030 - New Species of Parasitic Fungi discovered in Canada. — dearnkss johx., in Mvco- 



lo^ia, \'ol. \'IIL X'o. 2, pp. <)8-in7. Lancaster, Pa., loi''. 



Among the species described the following deserve particular mention : 



i) Placosphaeria cornicola n. sp., on the living leaves of Corniis Niit- 



tallii Aud., in the island of Vancouver (British Columbia), September 1914; 



the diseased parts take on a bright red and afterwards a yellow colour while 



many black stromata appear and tend to run together ; 2) Cytodiplospora 



