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THE SEASONAL CAMBIUM ACTIVITY OF CHILEAN AND CALIFORNIAN SHRUBS
Author(s) -
Avila Guacolda,
Aljaro Maria E.,
Araya Sandra,
Montenegro Gloria,
Kummerow Jochen
Publication year - 1975
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1975.tb14072.x
Subject(s) - sclerophyll , evergreen , shrub , cambium , biology , chaparral , petiole (insect anatomy) , botany , ecology , southern hemisphere , genus , xylem , mediterranean climate
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.