133 



The identification and control of barley sorts is greatly aided by the 

 system of classification commonly used in Scandinavia. This system is based 

 on certain botanical marks on the kernel, on which basis all sorts commonly 

 grown are grouped into distinct types. Its foundation was laid by Dr. 

 Atterberg of Kalmar and subsequently improved upon by Neergaard although 

 it remained with Bolin, who came later, to perfect the system which is in 

 vogue to-day. This classification is as follows: 



Fig. XXXVI. Classification of Barley Types. 



Hordeum distichum nutans. 



Two-rowed barley; all kernels 

 broadest in the middle and 

 symmetrical in contour. 



Dorsal side of base of kernel 

 with a slight horse-shoe-like ex- 

 cavation or depression. 



Type I (a) Kernels with long haired 

 rachillse (basal bristle) and 

 lodicules and without teeth on 

 the lateral nerves. 



" II (/?) Kernels with long haired 

 rachillse and lodicules and 

 with teeth on the lateral 

 nerves. 



" III (/) Kernels with short haired 

 more or less woolly rachillse 

 and lodicules and without 

 teeth on the lateral nerves. 



" IV (d) Kernels with short haired 

 more or less woolly rachillse 

 and lodicules and with teeth 

 on the lateral nerves. 



Hordeum distichum erectum. 



Two-rowed barley; all ker- 

 nels broadest in the middle and 

 symmetrical in contour. 



Dorsal side of base of kernel 

 not excavated but often pinched 

 with a transverse crease or fur- 

 row. 



Type V (a) Kernels with long haired 

 rachillse and lodicules and 

 without teeth on the lateral 

 nerves. , 



" VI (/?) Kernels with long haired 

 rachillse and lodicules and 

 with teeth on the lateral 

 nerves. 



" VII (7) Kernels with short haired 

 more or less woolly rachillse 

 and lodicules and without 

 teeth on the lateral nerves. 



" VIII (<5) Kernels with short haired 

 more or less woolly rachillse 

 and lodicules and with teeth 

 on the lateral nerves. 



