|
|||||
|
|
THE SEASONAL CAMBIUM ACTIVITY OF CHILEAN AND CALIFORNIAN SHRUBS |
|
| Authors: | Guacolda Avila Maria E. Aljaro Sandra Araya Gloria Montenegro Jochen Kummerow |
| Affiliation: | Laboratory of Botany, Institute of Biological Sciences, Catholic University, Santiago, Chile Department of Botany, San Diego State University, San Diego, California, 92115 |
| Abstract: | The sclerophyllous evergreen shrub vegetation of southern California and central Chile is characterized by several examples of morphologically similar species. For each one out of a group of four Californian shrub species, four morphologically analogous sclerophyllous evergreens from Chile were chosen. In monthly intervals two-year branchlets from these eight species were collected and their cambium activity was evaluated by means of a histological analysis. Similar shrub species from Chile and California show a surprisingly strong coincidence in their seasonal fluctuations of cambium activity regardless of their systematic position. This observation is interpreted to mean that convergence has taken place. |
| Keywords: | |