de Maytenus en el Noroeste de Argentina (Sudamérica)

This paper is a comparative wood anatomy study of four species of the genus Maytenus living in Northwest Argentina: Maytenus vitisidaea, M. viscifolia, M. spinosa and M. cuezzoi. The specimens were collected in Santiago del Estero and Salta, Argentina and wood samples are safeguarded in the collection of the LAM (Laboratory of Wood Anatomy), Faculty of Forestry of Santiago del Estero University (UNSE), Argentina. The terminology used followed the IAWA List of Microscopic Features for Hardwood Identification. The diagnostic features of wood anatomical characters were evaluated by employing statistical methods such as Cluster Analysis (CA) and Principal Component Analysis (PCA). PCA showed vessel diameter, fibre wall, and ray width to be significant variables. CA showed M. cuezzoi and M. viscifolia to have the highest affinity.