Author : Harlan Harvey York
Release : 2017-05-24
Genre : Science
Kind : eBook
Book Rating : 801/5 ( reviews)

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Book Synopsis The Anatomy and Some of the Biological Aspects of the "American Mistletoe" by : Harlan Harvey York

Download or read book The Anatomy and Some of the Biological Aspects of the "American Mistletoe" written by Harlan Harvey York. This book was released on 2017-05-24. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Anatomy and Some of the Biological Aspects of the "American Mistletoe" Phoradendron Flavescens (Pursh) Nutt The seeds are distributed almost entirely as a result of being eaten by birds. On account of the stickiness of the seeds, they may adhere to the beaks and feet of birds and later become dislodged. The principal birds in the vicinity of Austin which feed upon the berries are mocking birds, sparrows and cardinals. In his obser Vations on the germination of Phoradendron villosum and Phara dendron californicnm, Cannonl states the following: The dis tribution of the mistletoe from tree to tree is likely always effected by the agency of birds, but its distribution in a tree may be brought about in another manner also, and thus it is frequently accounted for by the position of the older plant. In cases where infection has occurred on the higher branches of the host it tre quently happens that numerous younger plants of the parasite will be placed directly under this pioneer, as if they were derived from seed. As far as the writer's observations have gone, a great number of young plants may often' be found near an old plant as stated above, but besides being below an old plant, they often occur in the branches around it. From what the author has stated, we are led to infer that the seeds from which the plants below the old plant have developed, were not distributed by birds, but by accident as a result of lodging upon the twigs. The ber ries when ripe are rather turgid and have a firm outer covering Hence, in falling, they will very seldom become broken, so that they will lodge upon the twigs. Thus it seems that the distribution of the young plants, below the old pioneers is almost entirely due to birds. That this is true, the writer is led further to believe from observations which were made upon birds while they were feeding on the berries. 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.