Abstract

GONZALEZ, Cynthia C.. Foliar architecture of native species of Myrtaceae from Argentina I: Groups "Myrcia","Myrceugenia" and "Plinia". Bol. Soc. Argent. Bot. [online]. 2011, vol.46, n.1-2, pp.41-63. ISSN 1851-2372.

Nineteen species of native flora were studied to find patterns of leaf architecture to differentiate the Argentinean species of the groups (informal subtribal) "Plinia", "Myrcia" and "Myrceugenia" (sensu Lucas et al. 2007), (Tribe Myrteae, Family 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 with always brochidodromous-camptodromous veins, with one paramarginal vein, and may have two, one, or none intramarginal vein; the third and fourth vein category are random reticulate or branched, the areolae vary from undeveloped to fully developed and venules branching one, two, or more times.

Keywords : Leaf Architecture; Myrtaceae; "Group Myrcia"; "Group Plinia"; "Group Myrceugenia"; Argentina.

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