Excerpt from The Proceedings of the Linnean Society of New South Wales for the Year 1930, Vol. 55 Conforming to this -group of forms, in which the uredospores are relatively long and narrow, are the overseas Forms 16 and 27 derived from-india and Wales respectively. The longest spore measured came from the lot' of Form 16, being more than 44 p. In length. Of special interest is the remaining form, designated the New Form (waterhouse, It may be remembered that this was obtained from aecidia on a barberry as a hybrid. Between Forms 34 and 43. The uredospores are the most uniform of those met. They are the shortest of 'any of the forms measured, having a mean length of only 2837 1. 0-14 u. They are shorter than those of any form recorded by Levine. Amongst the Australian measurements, they approximate most closely to those of Form 11, which had its origin on the barberry at the same time and in much the same fashion as the New Form. Not only is this New Form shorter, but at the same time its mean width is the greatest of the forms measured. From this it follows that in shape it is also unique, the mean of the ratio of length to width being 151 1. 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.