| Autor: |
M Daniel, Sheeja M John, S D Sabnis |
| Rok vydání: |
1989 |
| Předmět: |
|
| Zdroj: |
Proceedings / Indian Academy of Sciences. 99:253-258 |
| ISSN: |
0370-0097 |
| DOI: |
10.1007/bf03053599 |
| Popis: |
Flavonoids and related phenolics in the leaves of 14 conifers were studied and their relevance in the taxonomy of the group was assessed. It is found that biflavones were absent from the Pinaceae and Taxaceae. The former family was also devoid of flavones and possessed a low frequency of incidence of flavonols. The entire flavonoid systems was absent inPinus. In the light of these chemical evidences the identities of the Pinaceae and Taxaceae as separate orders Pinales and Taxales, are defended. The rest of the conifers are grouped in a new order, the Cupressales. The merger of Taxodiaceae and Cupressaceae is strongly opposed. Incorporating all the taxonomic evidences a new scheme of classification is proposed. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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