Identifier: bulletinofusdep601625unit (find matches)
Title: Bulletin of the U.S. Department of Agriculture
Year: 1913 (1910s)
Authors: United States. Dept. of Agriculture
Subjects: Agriculture Agriculture
Publisher: (Washington, D.C.?) : The Dept. : Supt. of Docs., G.P.O.
Contributing Library: American Museum of Natural History Library
Digitizing Sponsor: American Museum of Natural History Library

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Bui. 622, U. S. Dept. of Agriculture. Plate II.
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THE IDENTIFICATION OF VARIETIES OF BARLEY. 9 of the problem to be solved. When it is realized that a great numberof these forms are known and that there is no reason why all of themcan not be produced, or indeed may not be found already in exist-ence in some part of the world, the futility of continuing the policyof describing each minor variation becomes apparent. In fact, thereis more to be done than merely resolving not to add to the confusion.Over 200 forms have been named and described. Some semblanceof order must be brought about in the work already published andsome constructive plan suggested whereby future additions may belimited to variations of real importance. When the variable char-acters are studied carefully with this object in view, it soon becomesapparent that the factors are not all of the same value. The fertility and the adherence or nonadherence of the lemmas aremajor distinctions. They seldom present any difficulties. Thenature of the appendages of the flowering

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