Kód: 14624946
Excerpt from Phytologia, Vol. 70: May, 1991 Aster spmosus Bentham Erigeron ortegae s.e. Blake), a species widely distributed from Central America into the southwestern United States, is treated as a new genus, Chloracantha, wit ... celý popis
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Excerpt from Phytologia, Vol. 70: May, 1991 Aster spmosus Bentham Erigeron ortegae s.e. Blake), a species widely distributed from Central America into the southwestern United States, is treated as a new genus, Chloracantha, with a single species, C. Spinosa (benth.) Nesom, comb. Nov. Although C. Spinosa produces no terminal resting buds and displays a herbaceous aspect in its per manently green stems without periderm, it behaves more like a shrub in its perennial stems (alive for up to about four growing seasons) with a quickly developed vascular cambium and its production of axillary buds with bud scales. Such a distinctive growth form is not known in any of the more than 500 Species of Aster or Erigeron, the two gen era with which the species has been allied, or in any other potentially closely related taxa. Studies of restriction site variation in chloroplast dna suggest that the closest relative of C. Spinosa is the genus Bolto nia and that. These two taxa apparently are more closely related to the lineage that includes Heterotheca than that of Aster; Erigeron is yet more distantly related. 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.
Zařazení knihy Knihy v angličtině Mathematics & science Biology, life sciences Botany & plant sciences
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