THE IDENTIFICATION OF VARIETIES OF BARLEY. 15 
Hordenm disthcJwn — Continued. 
Kernels naked. 
Lemmas awned or awnless. 
Kernels white, blue, or purple 21. nudum. 
Kernels black 22. nigrin'udum. 
Lemmas hooded. 
Kernels white, blue, or purple 23. laxum. 
Kernels black 24. nigrilaxum. 
Hordeum deflciens. Barleys in which the lateral florets 
are not only sterile but rudimentary. 
Kernels hulled. 
Lemmas awned or awnless. 
Kernels white, blue, or purple 25. deflciens. 
Kernels black 26. steudelii. 
Lemmas hooded. 
. Kernels white, blue, or purple 27. triceros. 
Kernels black 28. tridax. 
Kernels naked. 
Lemmas awned or awnless. 
Kernels white, blue, or purple 29. nudideflciens. 
Kernels black 30. decorticatum. 
Lemmas hooded. 
Kernels white, blue, or purple 31. suUaxum. 
Kernels black 32. gymnospermum. 
The 32 varieties described above are thought to constitute the 
major variations in barley. It is possible that a group of Abys- 
sinian barleys may later be added to the intermediate forms, but it 
is hoped that this may be avoided. In the list of subvarieties which 
follows there have been no additions, although many new sorts are 
available. It is thought best not to add to this list of named sorts, 
as the large number of names is already confusing. The list of sub- 
varieties is made up entirely of forms that have been published as 
varieties, but which are little more than variations of an established 
type. As these names have been used and as the distinctions have 
some foundation, even though often a fragile one, it is necessary to 
indicate the group each was intended to describe. It can not be too 
strongly recommended, however, that additions be made to the list 
of subvarieties only when the value of the addition is above question. 
At the present time the writer has in his possession blue, purple, 
and smooth-awned variations in a large number of new combina- 
tions. A dense form of tonsum has been received recently from 
Japan. Many dense forms of deficient barleys have been isolated 
from Abyssinian barley, with a complete series of colors. The addi- 
tion of these to the named subvarieties seems to offer no advantages, 
and when they are described it will be only in a list of agronomic 
varieties which is expected to supplement the present publication. 
