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vol.17 número1Floristic and ecological aspects of vascular epiphytes on isolated fig trees on the northern coastal plain of Rio Grande do SulPhanerogamic hydrophytes from the temporary swampy environments of coastal plains of northern Rio de Janeiro State, Brazil índice de autoresíndice de materiabúsqueda de artículos
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Acta Botanica Brasilica

versión impresa ISSN 0102-3306versión On-line ISSN 1677-941X

Resumen

ZANENGA-GODOY, Rosane  y  COSTA, Cecilia Gonçalves. Foliar anatomy of four species of genus Cattleya Lindl. (Orchidaceae) of the Brazilian Central Planalt. Acta Bot. Bras. [online]. 2003, vol.17, n.1, pp.101-118. ISSN 0102-3306.  http://dx.doi.org/10.1590/S0102-33062003000100008.

The analyzed species (Cattleya araguaiensis Pabst, C. bicolor Lindl., C. nobilior Rchb. e C. walkeriana Gardn.) present unistratified epidermis at both surfaces with stomata at abaxial surface; deposition of epicuticular wax in crusts, scales, granules and plates; C. araguaiensis presents stegmata at epidermal cells; others characteristics present at all species are: hypodermis cells with thick walls; bifacial and compact mesophyll; atipic cells ofpalisade parenchyma with thichness bars; collateral vascular bundles alternate accompanied by sheath fibers; cordon fibers accompanied by stegmata in the foliar blade; raphids. The described aspects reveal accentuate xeromorphy for water economy.

Palabras clave : Orchidaceae; Cattleya; leaf anatomy; epiphytism.

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