. The history and distribution of sorghum. interruptionfor thirty the progressof similar work inAmerica, large quan-tities of the seed ofour leading sac-charine varietieswere sent from here toSpain and other partsof southern these norMr. Wrays originalimportations seem tohave persisted therein cultivation aspure varieties. At the presenttime few varietiesare to be found inEurope, and theseare usually verybadly mixed. Arather large, some-what saccharinevariety, with spike-lets much as inGooseneck sorgo, butwith a compact, ob-ovate, erect, blackhead, is found inGerman
. The history and distribution of sorghum. interruptionfor thirty the progressof similar work inAmerica, large quan-tities of the seed ofour leading sac-charine varietieswere sent from here toSpain and other partsof southern these norMr. Wrays originalimportations seem tohave persisted therein cultivation aspure varieties. At the presenttime few varietiesare to be found inEurope, and theseare usually verybadly mixed. Arather large, some-what saccharinevariety, with spike-lets much as inGooseneck sorgo, butwith a compact, ob-ovate, erect, blackhead, is found inGermany, France,and Austria. It is Fig. 14.—Head of Holcus niger, after Arduino, 1786. quite different from any variety now grown in the United States and is probably a rem-nant of the importation from Natal. Some Amber and Orange sor-ghum can still be found in France and Spain. It is probable that theblood of a number of the different saccharine varieties is mingled in thevariable and often worthless hybrids now found in southern Europe. 175. AGRICULTURAL HISTORY AND DISTRIBUTION OF SORGHUM. 31 A white durra is found in occasional cultivation in Europe. Itis the form prevalent in northern Africa rather than that of Arabiaand Syria, and has come largely from Algeria by way of France(). South America. Xo sorghum varieties are indigenous to the New World. Andro-pogon halepensis itself is an introduction, though now found abun-d a n 11 y in tropicaland subtropicalAmerica. In SouthAmerica broom cornis quite widely butnot extensivelygrown. Amber sor-ghum from theUnited States issparingly intro-d u c e d . X o othervarieties are found,except occasionallyunder trial at ex-periment stations. West Indies axd Cen-tral America. Throughout theWest Indies andsparingly on the eastcoast of CentralAmerica a variety isfound quite similarto blackhull kafir inthe characters of thehead. In its vig-orous stooling andabundant leaves itstill more closely re-sembles other Afri-can varieties. It was
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