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Wood anatomy and its implications on the taxonomy of Apollonias Nees (Lauraceae)
Author(s) -
Loutfy M. H. A.
Publication year - 2009
Publication title -
feddes repertorium
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.24
H-Index - 25
eISSN - 1522-239X
pISSN - 0014-8962
DOI - 10.1002/fedr.200911195
Subject(s) - lauraceae , persea , laurus nobilis , biology , botany , taxon , taxonomy (biology) , essential oil
In the present work, wood anatomy of Apollonias barbujana (Lauraceae) was investigated by both Light Microscopy and Scanning Electron Microscopy and compared with six taxa of the Lauraceae representing the tribes Laureae and Perseeae. The investigated species included four of the endemic Macaronesian taxa of the Lauraceae ( Laurus azorica , L. novocanariensis , Ocotea foetens and Persea indica ) in addition to Laurus nobilis and Persea americana . The recorded characters were analyzed by the NTSYS‐PC program package, using the UPGMA clustering methods. The relationships between the studied taxa, expressed by average taxonomic distance (dissimilarity), were demonstrated as a phenogram. The study showed that Apollonias barbujana stood apart from the rest of the studied taxa of the Laureae and Perseeae by several unique features, predominantly uniseriate rays, multiseriate rays of 3–5 rows, striated fibers and/or sclereids with thick walls and many bordered pits, excessive tylose deposits, vessels with wide scalariform perforations with 6–12 bars and distinct bordered pits. More studies on this genus are needed. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)