In some deserts of the world, a series of heavy rains can trigger many species of plant to flower at the same time. Beneath Death Valley lies a massive seed bank of desert wildflowers and when heavy ...
IN my article on “Different Modes of Self-fertilisation where Visits of Insects are wanting” (NATURE, vol. x. p. 129), I gave a short account of the number of sepals, petals, and anthers in a hundred ...
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