FOSSIL PLANTS
Reading edition
A TEXT-BOOK FOR STUDENTS OF BOTANY AND GEOLOGY
BY
A. C. SEWARD M.A., F.RS., Hon. Sc.D. Dublin
PROFESSOR OF BOTANY IN THE UNIVERSITY; MASTER OF DOWNING COLLEGE AND HONORARY FELLOW OF EMMANUEL COLLEGE, CAMBRIDGE
WITH 253 ILLUSTRATIONS
VOLUME III
PTERIDOSPERMEAE, CYCADOFILICES, CORDAITALES, CYCADOPHYTA
CAMBRIDGE: AT THE UNIVERSITY PRESS 1917
TO THE MEMORY OF MY FRIEND
CHARLES RENÉ ZEILLER
ILLUSTRIOUS AS A MAN OF SCIENCE AND A NOBLE-HEARTED GENTLEMAN WHOM TO KNOW WAS TO REVERE