Plants and their ways in South Africa . had been no disturbance, eventhough the petals and sepals were removed. A perfect flowerhas both stamens and pistils. In the flowers which bear theseed in the Silver Tree, mealie, or Montinia stamens arewanting, while those that have stamens produce no in which either set of essential organs is wanting areimperfect. If the pistils are wanting, the flowers are sta-minate. If the stamens are absent, the flowers are pistillateor fertile. A perfect flower is sometimes called bisexual or 136 Plants and their Ways in South Africa hermaphrodite. Th
Plants and their ways in South Africa . had been no disturbance, eventhough the petals and sepals were removed. A perfect flowerhas both stamens and pistils. In the flowers which bear theseed in the Silver Tree, mealie, or Montinia stamens arewanting, while those that have stamens produce no in which either set of essential organs is wanting areimperfect. If the pistils are wanting, the flowers are sta-minate. If the stamens are absent, the flowers are pistillateor fertile. A perfect flower is sometimes called bisexual or 136 Plants and their Ways in South Africa hermaphrodite. The willows and arums have neither calyxnor corolla. A flower may be reduced to a single stamen or asingle pistil, as in complete flower has— (i) Calyx, made up of sepals. (2) Corolla „ „ petals. (3) Stamens ,, ,, filaments and anther. (4) Pistil „ ,, ovary, style, and perfect flower has— (i) Stamens.(2) making out these whorls in flowers. Find otherflowers which are pistillate or Fig., 124.—Diagrammatic sections of ovaries : /. the placenta, to whichthe seeds are attached. A, apocarpous; B, C, D, syncarpous. (From Ed-monds and Marloths Elementary Botany.) A. B, with parietal; C, D,with axile placentation. Do not try to remember any of these names until you haveseen the parts themselves. Different Kinds of Pistils.—The long style of Hibiscus is necessary to bring thestigma out beyond thestamens. In some Or-nithogalums and in Al-buca the stigma sitsdirectly on the style is not in allcases necessary to thepistil. It depends uponthe shape of the flower. .^-^-s^-d
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectplants, bookyear1915
