CLASSIFICATION. 1 1 



KEY TO TIIK VARIETIES. 



It is hoped that the following key will prove useful to those seekiii*; 

 to identify- varieties of soy beans. The user is cautioned, however, 

 against placing complete dependence upon the key alone. It 

 should be used only in connection with (1) the table showing average 

 ripening period and average height, (2) the illustrations of seeds and 

 pods, and (8) tiie fuller notes and descriptions given in the body of 

 the text. From the very natiu'e of these so-called varieties of an 

 agricultural croj) they can not l)e sej^arated by as ininul*' characters 

 as avail in the case of botanical forms. 



I. lii.ACK Seeded. 



1. Seeds largo, 8 Id 11 nun. lon^', round or lnoadly elliptical, pods li to 3 inches lono;. 



A. Very early, nindy-livc to one luuidr('<l days, 18 t(>24 inches hifjli, short 



branched; leaves lari^e, dark; jkhIs 2 inches long or over, seeds spherical or 

 broadly elliptical and somewhat flattened Buckshot. 



B. As above, but seven to ten days later, branches longer, pods and seeds some- 



what smaller Nuttall. 



C. Late, one hundred and twenty to one hundred and thirty days, about 30 



inches tall, branches long, seeds very large, elliptical, much flattened. 



Flat Kin.g. 



2. Seeds .small, 4 to fi or 7 nun. long, round or broadly ellijitical, pods about 1 inch long. 



A. Medium, one hundred and ten to one hunch-ed and lift een days, low, 15 to 18 



inches tall, scarcely branched, seeds spherical or slightly flattened. iun^sion. 



B. Medium late, one hundred and fifteen to one hundred and twenty days, 20 to 



26 inches tall, long-branched, seeds elliptical, distinctly flattened. .^6o7i!/. 



3. Seeds medium, elongated, 5.^ to 7 nun. long, about two-thirds as wide, much 



flattened. 

 A. Very late, 3 to 4^ feet tall, very nuuh ])raiich(>d, leaves and pods small -72iV<'/anJ. 



II. Brown Seeded. 



1. Early, pods over 1| inches long, seeds large, 8 to 9 mm. long, round, or nearly so. 



A. Very early, about 20 inches high, l)ranches few and short Ogemair. 



B. Early, about 22 inches high, l)ranches very numerous and longer Eda. 



2. Mediuni late, 25 inches tall, long branched, pods less than If inches long, seeds 



small, 4 to 6^ mm. long, spherical or round. 



A. Pods distinctly flattened, f to i inch or over in width, seeds deep brown, 



shining Baird. 



B. Pods nearly cylindrical, f^ inch or less in width, seeds light brown, dull. 



Brovmie. 



III. Mottled Seeded. 



1. Identical with Riceland, except in color of the elongated seed Hankow. 



2. Plant not known, seeds large, nearly round Meyer. 



IV. Gkeen Seeded. 



1. Early, low, 15 to 20 inches, short branched, pods slender, commonly 3 seeded, 



seeds light green, elongated r Samaroiv. 



2. Medium, one hundred and ten days, 30 inches tall, pods broader, seeds round, 



deep gi'een Ouelph. 



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