118 



A. A K EH MAN 



Fig. 2. The same chimacra as in figure 1; (i from the 

 typical side of tlic spikelets, b from the speltoid side. 



— 948) originating 

 from a typical Fi- 

 plant from a cross 

 between Ironwheat 

 and Thidewheat II, 

 both typical vulgare 

 types \ This chi- 

 inaera had only one 

 spike, which imme- 

 diately attracted my 

 attention, when the 

 material was exa- 

 mined in the 

 autumn. The outer 

 glumes of the one 

 side of the spikelets 

 were pointing al- 

 most upright and 

 were firmly pressed 

 to the flowering 

 scales, while they 

 on the other side 

 were distended and 

 relatively lax (fig. 1 

 and 2)'. The spi- 

 kelets did not have 

 the normal position 

 either, as can be 

 seen in fig. I. They 

 were bent to the 

 side of the typical 

 outer glumes. My 



first thought was 

 that all the flowers 

 on one side of the spikelets had been destroyed by the larvae of gall- 

 midges (Cecidomyia tritici) as similar deformations could be thought to 



^ Concerning the origin of these l>vo sorts see Nii.sson-Ehi.k 1915, p. 8 and 

 1916, p. 17. 



' I am deeply indebted to Professor H.ialmak Nilsson for liis kindness of 

 taking the photographs reproduced in this article. 



