Abstract

GONZALEZ, Cynthia C.. Foliar architecture of native species of Myrtaceae of the Argentinean flora III: Group "Eugenia". Bol. Soc. Argent. Bot. [online]. 2011, vol.46, n.1-2, pp.85-104. ISSN 1851-2372.

This work is part of an integrated study of leaf architecture of Myrtaceae native species of Argentina.Twenty-one native species of native flora were studied to find patterns of leaf architecture to differentiate the Argentinean species of the group or informal subtribal "Eugenia" Tribu Myrteae (Familia Myrtaceae). The leaves studied in this work are characterized by being simple, with apex and base variable, membranaceous to coriaceous in texture, and with entire margin. Its venation pattern is characterized by having the first vein category pinnate, simple, and straight, without agrophic veins; venation of secondary category is brochidodromous-camptodromous, with one paramarginal vein and one or two intramarginal vein; the third vein category are random reticulate, percurrent or branched; the fourth and fifth vein category are random reticulate, branched or dichotomized; the areolae vary from undeveloped to fully developed and venules branching one, two, or more times.The marginal ultimate venation can be complete or incomplete loops, some with fimbrial vein.

Keywords : Leaf Architecture; Myrtaceae; Group Eugenia; Argentina.

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