Resumen

AGUILAR-ALCANTARA, Moisés; AGUILAR-RODRIGUEZ, Silvia  y  TERRAZAS, Teresa. Wood anatomy of twelve species of a cloud forest from Tamaulipas, Mexico. Madera bosques [online]. 2014, vol.20, n.3, pp.69-86. ISSN 2448-7597.

Woody flora of cloud forest (BMM) in Tamaulipas has different taxa with respect to other BMM in Mexico. Consequently, wood anatomical characters of its species can also express this variability, related to environment and the linages to which they belong. In this paper, wood anatomy of 12 species growing in of the BMM at "El Cielo" Biosphere reserve in Tamaulipas, Mexico was described. Unlike other Mexican BMM, results showed a positive trend with respect to the presence of conspicuous growth rings. This character seems related to the geographical position of this BMM in Mexico. Other characters such as diffuse porosity, tangential vessels diameter < 100 µm, vessel elements with helical thickenings and length >350 µm, fibers lengths > 900 µm, and scarce axial parenchyma, are common features in the species studied. Some anatomical characters of taxa were compared with related groups at the genus or family level.

Palabras llave : comparative anatomy; growth rings; scalarirorm perforation plates; diffuse porosity; Biosphere reserve "El Cielo"; secondary xylem.

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