Stem and petiolar anatomy of Gnetum L. in Peninsular Malaysia

Faridah Hanum Ibrahim, . Stem and petiolar anatomy of Gnetum L. in Peninsular Malaysia. pp. 65-85. ISSN 0126-8643

From the vessel anatomical studies both the scalariform pits and perforation plates were found to be present in the petioles of all species: G. cuspidatum Bl. G. gnemon L. G. gnemonoides Brongn. G. latifolium Bl. G. macrostachyum Hook. f. G. microcarpum Bl. and G. tenuifolium Ridl. The scalariform pits and perforation plates were also present in the stem of all the species except in G. gnemon l. and G. tenuifolium Ridl. Additional observations parenchyma sclerenchyma vascular except in G. gnemon L. and G. tenuifolium Ridl and on parenchyma sclerenchyma vascular bundles tubes tracheids and crystals were also described and compared for the species. These findings on vessel morphology of stem and petiolar anatomy support further the possible evolutionary relationship between the Gnetales and the angiosperms

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Abstract

From the vessel anatomical studies both the scalariform pits and perforation plates were found to be present in the petioles of all species: G. cuspidatum Bl. G. gnemon L. G. gnemonoides Brongn. G. latifolium Bl. G. macrostachyum Hook. f. G. microcarpum Bl. and G. tenuifolium Ridl. The scalariform pits and perforation plates were also present in the stem of all the species except in G. gnemon l. and G. tenuifolium Ridl. Additional observations parenchyma sclerenchyma vascular except in G. gnemon L. and G. tenuifolium Ridl and on parenchyma sclerenchyma vascular bundles tubes tracheids and crystals were also described and compared for the species. These findings on vessel morphology of stem and petiolar anatomy support further the possible evolutionary relationship between the Gnetales and the angiosperms

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Item Type:	Article
Additional Information:	9 ill.; 11 tables; 34 ref.; Summaries (En Ms)
AGROVOC Term:	GNETUM
AGROVOC Term:	ANATOMIA DE LA PLANTA
AGROVOC Term:	TALLO
AGROVOC Term:	PECIOLO
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:56
URI:	http://webagris.upm.edu.my/id/eprint/20445

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