This Essay first appeared in the ninth volume of the ‘Journal of the Linnean Society,’ published in 1865. It is here reproduced in a corrected and, I hope, clearer form, with some additional facts.
This Essay first appeared in the ninth volume of the 'Journal of the Linnean Society,' published in 1865. It is here reproduced in a corrected and, I hope, clearer form, with some additional facts. The illustrations were drawn by my son, George Darwin. Fritz Muller, after the publication of my paper, sent to the Linnean Society (Journal, vol. ix., p. 344) some interesting observations on the climbing plants of South Brazil, to which I shall frequently refer.
Recently two important memoirs, chiefly on the difference in growth between the upper and lower sides of tendrils, and on the mechanism of the movements of twining-plants, by Dr. Hugo de Vries, have appeared in the 'Arbeiten des Botanischen Instituts in Wurzburg,' Heft. iii., 1873. These memoirs ought to be carefully studied by every one interested in the subject, as I can here give only references to the more important points. This excellent observer, as well as Professor Sachs, 1 attributes all the movements of tendrils to rapid growth along one side; but, from reasons assigned towards the close of my fourth chapter, I cannot persuade myself that this holds good with respect to those due to a touch. In order that the reader may know what points have interested me most, I may call his attention to certain tendril-bearing plants; for instance, Bignonia capreolata, Cobaea, Echinocystis, and Hanburya, which display as beautiful adaptations as can be found in any part of the kingdom of nature. It is, also, an interesting fact that intermediate states between organs fitted for widely different functions, may be observed on the same individual plant of Corydalis claviculata and the common vine; and these cases illustrate in a striking manner the principle of the gradual evolution of species.
Appendix to Preface (1882).
Since the publication of this Edition two papers by eminent botanists have appeared; Schwendener, 'Das Winden der Pflanzen' (Monatsberichte der Berliner Akademie, Dec. 1881), and J. Sachs, 'Notiz uber Schlingpflanzen' (Arbeiten des botanischen Instituts in Wurzburg, Bd. ii. p. 719, 1882). The view "that the capacity of revolving, on which most climbers depend, is inherent, though undeveloped, in almost every plant in the vegetable kingdom" ('Climbing Plants,' p. 205), has been confirmed by the observations on circumnutation since given in 'The Power of Movement in Plants.'
Errata.
On pp. 28, 32, 40, 53, statements are made with reference to the supposed acceleration of the revolving movement towards the light. It appears from the observations given in 'The Power of Movement in Plants,' p. 451, that these conclusions were drawn from insufficient observations, and are erroneous.
A Monograph on the Sub-class Cirripedia (Volume 2 of 2) by Charles Darwin
The Foundations of the Origin of Species by Charles Darwin
On the Origin of Species by Means of Natural Selection by Charles Darwin
A Naturalist's Voyage Round the World by Charles Darwin
The Variation of Animals and Plants under Domestication is a book by Charles Darwin that was first published in January 1868. A large proportion of the book contains detailed information on the domestication of animals and plants but it also contains in Chapter XXVII a description of Darwin's theory of heredity which he called pangenesis.
First published in book form in 1877, this volume of Darwin's pioneering research on the heterostylous reproductive systems in flowering plants remains the basis of much exciting original research in the field of botany today. Darwin himself revealed, “I do not think anything in my scientific life has given me so much satisfaction as making out the meaning of the structure of these plants."
BOOK 1- BILLIONAIRE ROMANCE BOOK. MATURE THEMES 18+ The book may contain s!xual scenes, sudden instances of possessiveness, mild violence. Sydney Morgan and Gavin Reed, high school sweethearts, had been married for over a decade. Five years of their relationship were filled with unconditional love; however, in the next six years, this changes drastically between them when Sydney takes advice from her best friend, Gavin's first love. When Sydney loses her baby, Gavin is left broken and vulnerable in the hands of his first love. She convinces him to divorce Sydney, and when he does, Sydney loses it and nearly gets hit by a car, but then the talk of the town, Gavin's rival, and CEO's son, hiding behind a facàde, comes to her rescue.
Ava Adler was a nerdy omega. People bullied her because they thought she was ugly and unattractive. But Ava secretly loved the bad boy, Ian Dawson. He was the future Alpha of the Mystic Shadow Pack. However, he never gave a damn about rules and laws, as he only liked to play around with girls. Ava was unaware of Ian's arrogance until her fate intertwined with his. He neglected her and hurt her deeply. What would happen when Ava turned out to be a beautiful girl who could win over any boy, and Ian looked back and regretted his decisions? What if she had a secret identity that she had yet to discover? What if the tables turned and lan begged her not to leave him?
Dear readers, this book has resumed daily updates. It took Sabrina three whole years to realize that her husband, Tyrone didn't have a heart. He was the coldest and most indifferent man she had ever met. He never smiled at her, let alone treated her like his wife. To make matters worse, the return of the woman he had eyes for brought Sabrina nothing but divorce papers. Sabrina's heart broke. Hoping that there was still a chance for them to work on their marriage, she asked, "Quick question,Tyrone. Would you still divorce me if I told you that I was pregnant?" "Absolutely!" he responded. Realizing that she didn't mean shit to him, Sabrina decided to let go. She signed the divorce agreement while lying on her sickbed with a broken heart. Surprisingly, that wasn't the end for the couple. It was as if scales fell off Tyrone's eyes after she signed the divorce agreement. The once so heartless man groveled at her bedside and pleaded, "Sabrina, I made a big mistake. Please don't divorce me. I promise to change." Sabrina smiled weakly, not knowing what to do...
Renea was trying the wedding dress, when suddenly the man rushed in the dressing room and held her neck tightly... “Bitch! Are you still trying to pretend innocent!” Jasper said as he tightened his grip on her neck and choked her harder. Then he used his other hand and took out the phone from his suit pocket and played the video of two people having sex in front of Renea… However, what was even more shocking, was that the woman in the video was, Renea Morris, however, the man in the video was not Jasper. Renea struggled to take a phone away from Jasper’s hand and tried to explain, “Jasper, it was not what you think… I… I can…” Jasper looked at Renea with his eyes full of disgust, as he said, “Let’s call of the wedding. I can’t marry a woman like you.” After saying that Jasper walked out of the shop Renea chase after Jasper... But then she sees Jasper passionately kissing her sister Kailey. And she hears everything, that her sleeping with strange men was all a plan of the vipers of the last two days, and that their goal was to get out of this stupid marriage. Even her adopted parents were also involved in this matter... They all do this with her because of the inheritance left by her grandfather... Renea heart was filled with anger and she wanted to expose their true colors to the public... However before she could do anything, Kailey had pushed her in front of the car and she got killed... However, when Renea open her eyes, she found herself sitting in the car with Kailey... She realized that she was reborn and went at the time when everything started... Renea looked at the people who had hurt her in her previous life and her lips curled up in a cold smile... She was back... However, this time... she was back for revenge...
After being kicked out of her home, Harlee learned she wasn't the biological daughter of her family. Rumors had it that her impoverished biological family favored sons and planned to profit from her return. Unexpectedly, her real father was a zillionaire, catapulting her into immense wealth and making her the most cherished member of the family. While they anticipated her disgrace, Harlee secretly held design patents worth billions. Celebrated for her brilliance, she was invited to mentor in a national astronomy group, drew interest from wealthy suitors, and caught the eye of a mysterious figure, ascending to legendary status.
A sudden twist of fate connected Helena to a prominent and influential person. To onlookers, she appeared as a naive bimbo. In truth, she was a top-tier specialist, shrouded in layers of hidden identities. Charlie declared, “She’s quite delicate and easily hurt. Cross her, and you’re crossing me.” The elite families, outwitted by Helena's prowess, kept these truths from him. Helena eventually broke free from Charlie, sending him on a frenzied worldwide hunt. To him, she was a bird with dazzling wings, and his goal was to help her reach new heights.