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Structure of the vegetative shoot apex ofCassiope lycopodioides

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Abstract

The structure of the vegetative shoot apex ofCassiope lycopodioides D. Don, which has a decussate leaf arrangement, was analyzed using trans- and longisections to generate a three-dimensional viewpoint.

The apical dome of this species is relatively high from the middle to the maximal area phase of a plastochron. Therefore, the initial protrusion of a pair of leaf primordia occurs laterally on an apical dome conspicuously in contrast to the cases ofDaphne pseudo-mezereum andClethra barbinervis whose apices are nearly flat or slightly convex.

The structure of the apex ofCassiope, however, may be understood with the concept of “apical sectors” on the same basis asDaphne andClethra (Hara, 1961, 1962, 1971a, b, c).

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Authors and Affiliations

  1. Department of Biology, College of General Education, University of Tokyo, Komaba, Meguroku, 153, Tokyo

    Noboru Hara

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  1. Noboru Hara
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Hara, N. Structure of the vegetative shoot apex ofCassiope lycopodioides . Bot Mag Tokyo 88, 89–101 (1975). https://doi.org/10.1007/BF02491244

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  • DOI: https://doi.org/10.1007/BF02491244

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