Word: verbascum
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...years. At his death in 1924, at 91, the experiment was inherited by colleagues at Michigan State College (now University), who had been bequeathed a map showing where the remaining bottles were buried. By 1960 only three varieties of seed still grew. A decade later, one hardy weed survived: Verbascum blattaria or moth mullein...
...soil sterilized by steam. But at first nothing happened. Had the century-old seeds finally expired? No. After several weeks the first seedling emerged; within five months 29 seeds had germinated. Six of the seedlings died. Of the survivors, 21 are moth mullein, one is another type of Verbascum and the last a variety of the Malva species that had not sprouted since...
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