Abstract
Aiming to describe seedlings’ morphology and cotyledons and eophylls anatomy of Gomphrena elegans Mart., 100 seeds were put into plastic bags, with sand and fertilized soil (1:3), kept in the greenhouse under room conditions, with 50% shady and watered daily. Cotyledonous petiole and limb and seedlings eophylls were sectioned in median and border. They were then analyzed in transversal and paradermic sections. Seedlings initial morphology is epigeal-foliar, the root is axial, and hypocotyls and epicotyl are reddish. Venation is of pinnate type, camptodrome and brochidrodome in cotyledons and eophylls. Petiole and leaf show uniseriated epidermis with cells of varied sizes and anomocytic stomata. Druses of calcium oxalate occurred in leaves and petiole. Dorsiventral mesophyll shows one palisade parenchyma layer and several lacunary ones.
Highlights
Gomphrena L. é o gênero das Amaranthaceae que apresenta maior número de espécies (Handro, 1964), ocorrendo predominantemente na América do Sul, distribuídas em áreas de cerrados, campos rupestres, campos limpos, caatingas, praias brasileiras e raramente em restingas e matas (Siqueira 1983, 1987)
As células epidérmicas comuns da face abaxial e adaxial apresentam em geral contornos sinuosos e os estômatos são do tipo anomocítico (Figuras 18 e 19) situados em ambas as faces do limbo
Tais características podem ser padrão para as Amaranthaceae, de forma que estudos com outras espécies devem ser realizados, visando a determinar o padrão morfológico e anatômico das plântulas
Summary
Gomphrena L. é o gênero das Amaranthaceae que apresenta maior número de espécies (Handro, 1964), ocorrendo predominantemente na América do Sul, distribuídas em áreas de cerrados, campos rupestres, campos limpos, caatingas, praias brasileiras e raramente em restingas e matas (Siqueira 1983, 1987). As células epidérmicas comuns da face abaxial e adaxial apresentam em geral contornos sinuosos e os estômatos são do tipo anomocítico (Figuras 18 e 19) situados em ambas as faces do limbo.
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