Читать книгу The Pecan and its Culture - H. Harold Hume - Страница 21

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Heretofore, no attempt has been made to group or classify the different varieties of pecans. Classification does not become necessary until the number of varieties has increased sufficiently. The following classification of the varieties with which the author is acquainted, is based entirely upon the shape of the nuts. No classification of those varieties of which descriptions are copied has been attempted, as the descriptions are frequently so meagre as to render it impossible: