. Botany for young people and common schools. How plants grow, a simple introduction to structural botany. With a popular flora, or an arrangement and description of common plants, both wild and cultivated. Botany; Botany. 76 HOW PLANTS ARE PROPAGATED. ; Fig. 195 is the corolla of Moniing-Glory laid open, to show the stamens inserted on it, i. e. grown fast to it, towards the bottom. We may even have the Stamens inserted on the Style, that is, united with it even up to the stigma. It is so in the Orchis family. 218. Gymnospermous or Open and Naked-seeded Pistils. This is the very
. Botany for young people and common schools. How plants grow, a simple introduction to structural botany. With a popular flora, or an arrangement and description of common plants, both wild and cultivated. Botany; Botany. 76 HOW PLANTS ARE PROPAGATED. ; Fig. 195 is the corolla of Moniing-Glory laid open, to show the stamens inserted on it, i. e. grown fast to it, towards the bottom. We may even have the Stamens inserted on the Style, that is, united with it even up to the stigma. It is so in the Orchis family. 218. Gymnospermous or Open and Naked-seeded Pistils. This is the very peculiar pistil which belongs to Pines, Spruces, Cedars, and all that family of plants; and it is the simplest of all. For here the pistil is an open leaf or scale, bearing two or three ovules on its upper or inner surface. Each scale of a Pine-cone is an open pistil, and the ovules, instead of being enclosed in an ovary which forms a pod, are naked, and exposed to the pollen shed by the stamen-bearing flowers, which falls directly upon them. Fig. 196 is a view of the upper side of an open pistil or scale from a forming Larch-cone, at flowering-time, showing the two ovules borne on the face of it, one on each side near the bottom. Fig. 197 is the same grown larger, the ovules becoming seeds. When ripe and dry, the scales turn back, and the naked seeds peel off and fall away. 219. Plants which have such open scales for pistils accordingly take the name of Gymnospermous or Naked-seeded. The Pine family is the principal example of the kind (see p. 201). All other Flowering plants are Angiospermous, that is, have their ovules and seeds produced in a seed-vessel of some sort. Analysis of the Section. 168. Arrangement of Flowers, or Inflorescence. 169. Situation of Flower-buds : terminal and axil- lary. 170. Solitary flowers. 171. Flower-clusters. 172. Bracts and Bractlets. 173, 174. Flower- stalks: Peduncle and Pedicels. 175. Kinds of flower-clusters. 176. Raceme; order of opening o
Size: 1970px × 1269px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1850, booksubjectbotany, bookyear1858
