. Elements of botany. Botany; Botany. STEMS. 39 (5) The flower-bud scar, a concave impression, to be found in the angle produced by the forking of two twigs, which form, with the branch from which they spring, a Y-shaped figure. (6) (On a branch larger than the twig handed round for individual study) the mode of origin of the twigs from the branch ; — make a separate sketch of this. The portion of stem which originally bore any two pairs of leaves is called a node, and the portions of stem between nodes are called internodes. Describe briefly in writing alongside the sketches any observed fact
. Elements of botany. Botany; Botany. STEMS. 39 (5) The flower-bud scar, a concave impression, to be found in the angle produced by the forking of two twigs, which form, with the branch from which they spring, a Y-shaped figure. (6) (On a branch larger than the twig handed round for individual study) the mode of origin of the twigs from the branch ; — make a separate sketch of this. The portion of stem which originally bore any two pairs of leaves is called a node, and the portions of stem between nodes are called internodes. Describe briefly in writing alongside the sketches any observed facts which the draw- ings do not show. If your twig was a crooked, rough-barked, and slow-growing one, exchange it for a smooth, vigorous one and note the differences. Or if you sketched a quickly grown shoot, exchange for one of the other kind. (6) (c). Answer the following questions : (a) How many inches did your twig grow during the last summer ? How many in the summer before ? How do you know ? How many years old is the whole twig given you ? How were the leaves arranged on the twig ? How many leaves were there ? Were they all of the same size ? What has the mode of branching to do with the arrangement of the buds ? with the flower-bud scars ? {d) The dots on the leaf-scars mark the position of the bundles of ducts and wood-cells which run from the wood of the branch through the leaf-stalk up into the leaf. 59. Twig of Beech. — Sketch a vigorous young twig of beech in its winter condition, noting particularly the respects in which it differs from the horse-chestnut. Describe in writing any facts not shown in the sketch. Notice that the buds are not opposite, nor is the next one above Fis. 23. —AQuickly grown Twig of Cherry, witli Lateral and Terminal Buds in October. 6 sc, bud-scale scars. All above these scars is the growth of the spring and summer of the same Please note that these images are extracted from scanned page images that may have been digitally enhanc
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbotany, bookyear1896
