A Classification of the Varieties of Cultivated Oats 87 
B. Pazicla unilateral, appressed. 
a. Grains white. 
14. var. obtusaia Al. Grains white, awnless. 
15. var. tartarica Ard. Grains white, awned. 
b. Grains yellow. 
16. var. flava Kcke. Grains golden, awnless. 
c. Grains brown. 
17. var. tristis Al. Grains brown, awnless. 
18. var. pugnax Al. Grains brown, awned. 
II. Spikelets with 2 or more awns. 
19. var. brevis Roth. Grains short, the lemma without awn points. 3 
20. var. strigosa Schreb. Lemma with 2 long awn points. 
21. var. abyssinica Hochst. Lemma 4-toothed, white, extending far above the 
kernel. 
22. var. Schimperi Kcke. Lemma 4-toothed, yellow, extending far above the 
kernel. 
23. var. Hildebrandli Kcke. Lemma 4-toothed, gray, extending far above the 
kernel. 
24. var. Braunii Kcke. Lemma 4-toothed, brown, extending far above the 
. kernel. 
Kernel free within the hull (naked oats). 
I. Panicle equilateral, spreading. 
25. var. inermis Kcke. Grains awnless. 
26. var. chinensis Fisch. Spikelet with 1 awn. 
27. var. nuda L. Spikelet with 2 awns. 
II. Panicle unilateral, appressed. 
28. var. gymnocarpa Kcke. Grains white. 
29. var. affinis Kcke. Grains brown. 
In their classification according to the preceding outline, Kornicke and 
Werner have brought together 137 varieties representing an exceedingly 
wide range of structure; but within each group there is no systematic 
separation of closely related varieties, they being arranged in no particular 
order although minutely described. That part of the system which dis- 
tinguishes species and types is especially suggestive for contemporary 
work, but the method of grouping many varieties of the same general type 
without further systematic arrangement is not satisfactory since it leaves 
the identification of varieties within a group to a tedious comparison of 
their descriptions. Bohmer (1908-09) has criticized the classification of 
Kornicke and Werner as bringing together varieties alike in superficial 
characters but not systematically related in physical properties. How- 
ever, this criticism seems lacking in point, for a system for the identification 
and competent description of varieties of oats must primarily be based 
on morphological rather than physical differences. 
3ln a more detailed description of var. brevis, Kornicke states that the point of the grain is usually blunt, 
with two short, firm teeth which occasionally are lengthened into awn points. 
