The Journal of Heredity 



TIIK ALGERIAN OAl 



Above is a head of Avena algeriensis, a single spikelet 

 of which is shown below, at the left. Next to tliis 

 is a photograph of the grains shown in more detail, 

 at the right of which the second seed is shown 

 alone. On the extreme right of the pholograj)!! 

 (lower section) is shown the product of an 

 improved variety of this type. (Figure 12.) 



A. sterilis byzantina (Koch) Tral^ut. 

 A. byzantina Koch (Linnaca, col. 21, 

 p. 392. 1848). A. sterilis var. Y. Trabut, 

 1910. B. A.AIk. Tunis. This form was 

 described by Koch in 1848. M. Thcl- 

 lung has established the synonymy of 

 this interesting^' variety. Cosson (Bull. 



Soc. Bot. France, vol. 1, p. 15, 1854) 

 and the contemi)orary authors have 

 referred A . byzantina Koch to ,4 . fatua, 

 more especially to the j^labrous fonns: 

 .1. hybrida, A. fatna glabresccns Cosson. 

 Haussknecht ]:)ublished it as Avena 

 sterilis parallcla in 1885. Avena sterilis 



