. Upper figure, the long-styled form ; lower figure, the short-styled. Some of the anthers have dehisced, others have not. Polygonum fagopyrum. (From H. Miiller.) Four heads on short-styled plants similarly received pollen from other short-styled plants, and were thus illegitimately fertilised. They produced 9 seeds, or 2 • 25 per flower-head. The results from fertilising the flower-heads in the above imperfect manner cannot be fully trusted ; but I may state that the four legitimately fertilised flower-

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Keywords: ., bookcentury1800, bookdecade1890, booksubjectplants, bookyear1897