The rudiments of botany |
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The Rudiments of Botany: A Familiar Introduction to the Study of Plants Arthur Henfrey No preview available - 2019 |
The Rudiments of Botany: A Familiar Introduction to the Study of Plants Arthur Henfrey No preview available - 2019 |
Common terms and phrases
adventitious roots anther appearance arise arranged axillary buds axils base bearing become blade blended bodies Botany bracts branches bulbs burst Buttercup called calyx capsule carpels cavity centre characters circle coherent composed compound consists corolla cotyledons Dandelion developed internodes distinct divided embryo enlarged Example exhibit filament fleshy florets flower-buds flowering plants flowering stem fruit genera germen Grasses growing growth Heartsease inflorescence internodes involucre kind leaf leaf-like leafy leaves Lilac Lily lobes nature nodes occur Orchis organs ovary ovules palmate peculiar pedicels peduncle perennial plants petals petiole pistils placentas plumule pollen portion of stem Primrose produced radicle receptacle rhizome ripe round scales seeds sepals separate sessile sheath shewing side sometimes species spike spores stalk fig stamens stamens and pistils stigma stipules Strawberry style summit surface tendrils terminal bud thickened thread-like tion tribe tripinnate tube tuberous upper usually various Wall-flower whorl woody
Popular passages
Page 227 - Class 1. Monandria . 2. Diandria 3. Triandria 4. Tetrandria . 5. Pentandria . 6. Hexandria . 7. Heptandria . 8. Octandria 9. Enneandria . 10. Decandria 11. Dodecandria 12. Icosandria . 13. Polyandria . 14. Didynamia . 15. Tetradynamia 16. Monadelphia 17. Diadelphia . ti » 5
Page 78 - The sizes, shapes and markings of the grains vary a great deal in different plants, and even in different parts of the same plant.
Page 9 - Wall-flower (fig. 3) presents us with four leaves in the outer circle (a), (and these will be best examined on a bud, as they fall off soon after it opens). These are green, like the true leaves, but are smaller and much changed in their general appearance. They are called sepals, and, collectively, they form the calyx, or cup of the flower, which is always known from the other parts by being the outermost circle. To the calyx succeeds another circle of four bodies (b 6), which still retain in some...
Page 70 - ... stock have their structures of almost identical nature, so that their modes of growth and enlargement do not differ to any considerable degree ; then the bud, instead of producing adventitious roots, draws its nourishment from the stem of the plant to which it has grown, and of which it becomes as completely part as a bud naturally produced upon it, only shewing its independence by retaining in its own branches the character of the plant from which it had been originally removed.
Page 11 - The two circles just described are present in the greater number of flowers, but they are not actually necessary for the formation of fertile seeds. They enclose and protect, while young, those bodies especially devoted to the formation of the seed. They are therefore called enveloping organs.* Within these enveloping organs, which we may now remove with a pen-knife (c), we find in the first place six bodies or organs (fig.
Page 191 - ... to have peculiar forms in different kinds of Ferns, and to be attached sometimes by little stalks, and sometimes by their edges. If we place some of the brown dust-like substance under a microscope, we find it to consist of a number of little cases (e), which, when ripe, burst (/), and discharge the very minute spores which have been produced within them.
Page 12 - In the centre of the flower appears a green body (g), which is found to be constructed of two or four leaves, united at their edges so as to enclose a cavity within. This green body is called the pistil, when regarded as one piece ; and the summit, which is somewhat swollen, is the stigma...