Nature and development of plants . Fig. 284. Fig. 285. Fig. 284. Flower and fruit of grass: $A, a single flower with the twoenveloping bracts opened, exposing the stamens and pistil with featherystigmas. 3B, flower with outer firm bract removed—/, lodicules; st. , mature fruit or grain—c, region of embryo. 7, section through base ofgrain, showing the root, stem, leaves, and scutellum, sc, or absorbing organof the embryo; en, endosperm. , diagram of a few of the outer cellsof the scutellum, sc. Fig. 285. Inflorescence of one of the sedges, Carex: p, spike of pistillateflowers, each p
Nature and development of plants . Fig. 284. Fig. 285. Fig. 284. Flower and fruit of grass: $A, a single flower with the twoenveloping bracts opened, exposing the stamens and pistil with featherystigmas. 3B, flower with outer firm bract removed—/, lodicules; st. , mature fruit or grain—c, region of embryo. 7, section through base ofgrain, showing the root, stem, leaves, and scutellum, sc, or absorbing organof the embryo; en, endosperm. , diagram of a few of the outer cellsof the scutellum, sc. Fig. 285. Inflorescence of one of the sedges, Carex: p, spike of pistillateflowers, each pistil is surrounded by a papery sac, through which the styleand stigma protrude; s, spike bearing staminate flowers. Note the tri-angulaf stem, a characteristic of this large genus of over 1,000 species. the base of the bracts, these latter organs are forced apart, per-mitting the extension of the stigma and anthers. The filamentquickly elongates and soon curves so as to allow the anther to DEVELOPMENT OF PLANTS 2>77 swing
Size: 956px × 2613px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublisher, booksubjectplants
