The Canadian Naturalist and Geologist, Vol. 4
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| Partner: | buecher.de |
| Hersteller: | Forgotten Books (Montreal, Natural History Society of) |
| Stand: | 2015-08-04 03:50:33 |
Produktbeschreibung
Excerpt from The Canadian Naturalist and Geologist, Vol. 4: And Proceedings of the Natural History Society of Montreal In bringing Cruciferæ forward immediately after Fumariaceæ, Torrey, with his usual acumen, has followed the surest indications of relationship. In these two orders the petals and stamens are equal is number, and the superior ovary is formed nearly on the same plan with Parietal Placentæ. In both the sepals are deciduous, and those of Fumariacæ we might almost look upon as four, but united into two. The differences which do exist are not so great as to neutralize the above resemblances in characters so essential to the formation of a natural system. That profound observer Jussieu, also, at an earlier date, did not fail to allow their due weight to these decided marks of propinquity. Of the species of Cruciferæ to be found in North America, Torrey and Gray describe 113. Of these, there are probably ten that have been introduced, and perhaps nearly as many are common or indigenous to both North America and Europe. 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.
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