Abstract Detail

Poster Session

Akinsulire, Opeyemi Philips [1], Oladipo, Olaniran Temitope [1], Illoh , Herbert Chukwuma [1].

Comparative  Systematic Wood Anatomical Study of Eleven Species of Combretaceae In Nigeria.

A comparative wood anatomical study of eleven species in four genera in the family Combretaceae was carried and this was with a view to identifying wood characters of taxonomic value in the diagnosis, delimitation and subsequent identification of members of the family. Collection of accessions of the species was made from different parts of Nigeria.  Transverse, tangential and radial longitudinal sections of the stems of the species were cut using Reichert sliding microtome. Both qualitative and quantitative characters of the wood anatomy of the taxa were observed and documented.  Quantitative data were subjected to Analysis of Variance, Single Linkage Cluster Analysis (SLCA) and Principal Components Analysis (PCA). Results revealed that wood in the eleven taxa is diffuse porous. Coarse-grained aliform confluent paratracheal parenchyma delimits Terminalia ivorensis from the rest of the taxa. Gross examination of wood anatomical characters reveal some distinctions .the type of vascular ray is classificatory in genera studied. Vessel diameter was highest in the genus Combretum while the genus Anogeissus represented by Anogeissus leiocarpus had the least. Ray height vary significantly (p<0.05) among the eleven species studied in the family.  The PCA factor loadings reveal vessel diameter as important quantitative data useful in separating the eleven species.

1 - Obafemi Awolowo University Ile-Ife, Botany, Ile-Ife, Osun, Nigeria

Transverse section

Presentation Type: Poster
Abstract ID:30
Candidate for Awards:None