Taxonomic value of leaf venation and trichome characteristics in some Byttneria L. and Pterocymbium R. Br. (Malvaceae S.L)

A study on some leaf anatomical characteristics was undertaken on two genera in Malvaceae s.l namely Byttneria L. and Pterocymbium R. Br. The objective was to determine the taxonomic value of leaf venation characteristics especially in identification and classification of species. In the study, five...

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Main Authors:	Nurshahidah, M.R., Nabilah, M., Noraini, T., Richard, C.C.K., Ismail, B.S., Mohd-Arrabe, A.B.
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2013
Online Access:	http://journalarticle.ukm.my/7274/ http://journalarticle.ukm.my/7274/ http://journalarticle.ukm.my/7274/1/42_2_04.pdf

id	ukm-7274
recordtype	eprints
spelling	ukm-72742016-12-14T06:43:36Z http://journalarticle.ukm.my/7274/ Taxonomic value of leaf venation and trichome characteristics in some Byttneria L. and Pterocymbium R. Br. (Malvaceae S.L) Nurshahidah, M.R. Nabilah, M. Noraini, T. Richard, C.C.K. Ismail, B.S. Mohd-Arrabe, A.B. A study on some leaf anatomical characteristics was undertaken on two genera in Malvaceae s.l namely Byttneria L. and Pterocymbium R. Br. The objective was to determine the taxonomic value of leaf venation characteristics especially in identification and classification of species. In the study, five species were chosen, three Byttneria species, namely B. curtisii,B. jackiana, B. maingayi, and two Pterocymbium species, namely P. tinctorium and P. tubulatum. Byttneria and Pterocymbium have been split into two subfamilies, Byttneroideae and Sterculoideae, of Malvaceae s.l respectively. Leaf clearing, staining, mounting and observation under a light microscope were techniques used for the study. Results showed that the similarities and differences in leaf venation could be useful in classification and identification of species. The common characteristics found in all species studied were the presence of entire marginal venation and closed system venation with minimum free ending veinlets in the areolar venation. The variations in the leaf venation can be used to distinguish species, which are complete ultimate marginal venation in B. curtisii and B. maingayi; curved to looped pattern and incomplete, ultimate marginal venation in B. jackiana, P. tubulatum and P. tinctorium. The presence of simple unicellular trichomes in B. jackiana and two types of trichomes (simple unicellular trichomes and multicellular glandular trichomes) and crystals alongside veinlets in P. tubulatum can also be used to further identify these two species from other species studied. Therefore, the study showed that leaf anatomical characteristics in Byttneria and Pterocymbium can be used in species identification and have taxonomic value. Penerbit Universiti Kebangsaan Malaysia 2013-12 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/7274/1/42_2_04.pdf Nurshahidah, M.R. and Nabilah, M. and Noraini, T. and Richard, C.C.K. and Ismail, B.S. and Mohd-Arrabe, A.B. (2013) Taxonomic value of leaf venation and trichome characteristics in some Byttneria L. and Pterocymbium R. Br. (Malvaceae S.L). Malaysian Applied Biology, 42 (2). pp. 33-40. ISSN 0126-8643 http://mabjournal.com/
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	A study on some leaf anatomical characteristics was undertaken on two genera in Malvaceae s.l namely Byttneria L. and Pterocymbium R. Br. The objective was to determine the taxonomic value of leaf venation characteristics especially in identification and classification of species. In the study, five species were chosen, three Byttneria species, namely B. curtisii,B. jackiana, B. maingayi, and two Pterocymbium species, namely P. tinctorium and P. tubulatum. Byttneria and Pterocymbium have been split into two subfamilies, Byttneroideae and Sterculoideae, of Malvaceae s.l respectively. Leaf clearing, staining, mounting and observation under a light microscope were techniques used for the study. Results showed that the similarities and differences in leaf venation could be useful in classification and identification of species. The common characteristics found in all species studied were the presence of entire marginal venation and closed system venation with minimum free ending veinlets in the areolar venation. The variations in the leaf venation can be used to distinguish species, which are complete ultimate marginal venation in B. curtisii and B. maingayi; curved to looped pattern and incomplete, ultimate marginal venation in B. jackiana, P. tubulatum and P. tinctorium. The presence of simple unicellular trichomes in B. jackiana and two types of trichomes (simple unicellular trichomes and multicellular glandular trichomes) and crystals alongside veinlets in P. tubulatum can also be used to further identify these two species from other species studied. Therefore, the study showed that leaf anatomical characteristics in Byttneria and Pterocymbium can be used in species identification and have taxonomic value.
format	Article
author	Nurshahidah, M.R. Nabilah, M. Noraini, T. Richard, C.C.K. Ismail, B.S. Mohd-Arrabe, A.B.
spellingShingle	Nurshahidah, M.R. Nabilah, M. Noraini, T. Richard, C.C.K. Ismail, B.S. Mohd-Arrabe, A.B. Taxonomic value of leaf venation and trichome characteristics in some Byttneria L. and Pterocymbium R. Br. (Malvaceae S.L)
author_facet	Nurshahidah, M.R. Nabilah, M. Noraini, T. Richard, C.C.K. Ismail, B.S. Mohd-Arrabe, A.B.
author_sort	Nurshahidah, M.R.
title	Taxonomic value of leaf venation and trichome characteristics in some Byttneria L. and Pterocymbium R. Br. (Malvaceae S.L)
title_short	Taxonomic value of leaf venation and trichome characteristics in some Byttneria L. and Pterocymbium R. Br. (Malvaceae S.L)
title_full	Taxonomic value of leaf venation and trichome characteristics in some Byttneria L. and Pterocymbium R. Br. (Malvaceae S.L)
title_fullStr	Taxonomic value of leaf venation and trichome characteristics in some Byttneria L. and Pterocymbium R. Br. (Malvaceae S.L)
title_full_unstemmed	Taxonomic value of leaf venation and trichome characteristics in some Byttneria L. and Pterocymbium R. Br. (Malvaceae S.L)
title_sort	taxonomic value of leaf venation and trichome characteristics in some byttneria l. and pterocymbium r. br. (malvaceae s.l)
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2013
url	http://journalarticle.ukm.my/7274/ http://journalarticle.ukm.my/7274/ http://journalarticle.ukm.my/7274/1/42_2_04.pdf
first_indexed	2023-09-18T19:49:16Z
last_indexed	2023-09-18T19:49:16Z
_version_	1777406109077733376

Taxonomic value of leaf venation and trichome characteristics in some Byttneria L. and Pterocymbium R. Br. (Malvaceae S.L)

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