On New Plants from the Erian and Carboniferous, and on the Characters and Affinities of Pal ozoic Gymnosperms (Classic Reprint)

Author:   John William Dawson, Sir
Publisher:   Forgotten Books
ISBN:  

9781334748912


Pages:   38
Publication Date:   29 September 2018
Format:   Paperback
Availability:   In stock   Availability explained
We have confirmation that this item is in stock with the supplier. It will be ordered in for you and dispatched immediately.

Our Price $24.81 Quantity:  
Add to Cart

Share |

On New Plants from the Erian and Carboniferous, and on the Characters and Affinities of Pal ozoic Gymnosperms (Classic Reprint)


Add your own review!

Overview

Excerpt from On New Plants From the Erian and Carboniferous, and on the Characters and Affinities of Pal ozoic Gymnosperms The most remarkable peculiarity, however, appears in the leaves, which instead of having the veins parallel, have them forking at a very acute angle, and Slightly netted by the spreading branches of the veins uniting with the others near them. This allies the leaves with those of the pro visional genus Noeggerathia, some of which have this pecu liarity, as also certain modern Cycads of the genus Zamia, which Professor Penhallow has kindly pointed out to me. Leaves with forking veins and even anastomosin g to a'certain extent, are also known in certain fossils of the genera Otoza mites and Nceggerathiopsis, &c., which are referred to Cycads, and the modern Cycadaceous genus Stangeria has forking veins. The present plant would seem to be a form of Cordaiteae, tending to Nceggerathia, which most paleo-botanists believe to have been a gymnospermous genus allied to Cordaites. The affinities however, so far as can be judged, are nearer to the latter; and following the example of Grand 'eury in his nomenclature of the genera, I would propose the name Dictyo-cordaites for the present genus, and the Specific name Lacoi, in honor of its discoverer. I may add here that the general aspect of this plant must have been so near to that of a Carboniferous species of Cordaites, as restored many years ago in my Acadian geology,2 that I reproduce the figure here. 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.

Full Product Details

Author:   John William Dawson, Sir
Publisher:   Forgotten Books
Imprint:   Forgotten Books
Dimensions:   Width: 15.20cm , Height: 0.20cm , Length: 22.90cm
Weight:   0.064kg
ISBN:  

9781334748912


ISBN 10:   1334748918
Pages:   38
Publication Date:   29 September 2018
Audience:   General/trade ,  General
Format:   Paperback
Publisher's Status:   Active
Availability:   In stock   Availability explained
We have confirmation that this item is in stock with the supplier. It will be ordered in for you and dispatched immediately.

Table of Contents

Reviews

Author Information

Tab Content 6

Author Website:  

Customer Reviews

Recent Reviews

No review item found!

Add your own review!

Countries Available

All regions
Latest Reading Guide

lgn

al

Shopping Cart
Your cart is empty
Shopping cart
Mailing List