848 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



Woburn, Twelfth Report, 1910. By the Duke of Bedford, K G., 

 and Spencer U. Pickering, F.E.S. — This Eeport deals with the silver- 

 leaf disease and the relative dates at which different varieties of apples 

 come into flower. See notes under Silver-Leaf " and ** Apples." 



A. P. i 



I 



Zinnias, Induced Variation in {Rev. Hort., Jan. 1, 1910. p. 7).— i 

 M. Paul Bequerel reports a curious case in which a number of Zinnias, 

 having been injured by frost late in May, were cut down to the ground, 

 and subsequently produced a number of shoots, which eventually 

 flowered freely, but on abnormal lines, a double red flowering wliite, 

 a white striped with red produced many red flowers. In others the j 

 flowers were abnormally formed, and in some the foliage was peculiarly 

 twisted and arranged. It is intended to make sowings of these abnor- 

 malities to see if the variation would be constant. — C. T. D. 



Zygopetalum maxill^re. By F. Ledien {Orchis, vol. iv. pt. vi. 



pp. 84-85; 1 plate, 1 col. plate). — This orchid, from East Brazil," 

 flourishes on the stem of a tree-fern. It requires a temperature of 

 54° to 59° F. in winter and a moderately moist atmosphere. One 

 plant may bear seventy flowers of a violet-blue hue. 



S. E. W. ' 



