Studies Of Nature Vol 4 Of 4 Classic Reprint PDF Download

Excerpt from The Book of Nature Study, Vol. 4 If a plant is dug up and the underground parts freed from the soil the green leafy shoot will be found to have arisen from a thick brown underground stem Of rather irregular shape. The surface Of this is marked with narrow scars left by scale - leaves, and a little examination will throw light on the mode Of growth Of the plant. The leafy shoot grows straight up from the thin anterior portion Of the underground stem, and appears to be the development Of the apex Of the latter. In the axil of a scale leaf at the base Of the shoot is a large bud, which is destined to grow into next year's shoot. On looking at the Older portion of the underground stem we recognise the large circular scars left by the aerial stem at the end Of each annual joint or segment, further growth having always been carried on by a lateral bud. A number Of thick roots grow out from the underground stem, and the latter increases in thickness, its tissues serving as a place of storage for reserve food material. This is used in the earlier stages Of the growth Of the leafy shoots. The cow-parsnip is thus a perennial herb, the leafy shoots Of which die down each autumn, leaving the Old underground stem and the bud which continues the growth next season. When more than one bud is established the underground stem becomes branched, and more than one leafy Shoot is sent up from it each year. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.