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Darwin concluded that a tendril with five
disk-bearing branches, on which he experimented, would stand a
strain of ten pounds, even after ten years' exposure to high
winds and softening rains.

WHITE VIOLETS
(Viola) Violet family
Three small-flowered, white, purple-veined, and almost beardless
species which prefer to dwell in moist meadows, damp, mossy
places, and along the borders of streams, are the LANCE-LEAVED
VIOLET (V. lanceolata), the PRIMROSE-LEAVED VIOLET (V.
prirnulaefolia), and the SWEET WHITE VIOLET (V. blanda), whose
leaves show successive gradations from the narrow, tapering,
smooth, long-petioled blades of the first to the oval form of the
second and the almost circular, cordate leaf of the delicately
fragrant, little white blanda, the dearest violet of all.
Inasmuch as these are short-spurred species, requiring no effort
for bees to drain their nectaries, no footholds in the form of
beards on the side petals are provided for them. The purple
veinings show the stupidest visitor the path to the sweets.


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