Anatomical variations and spore ultrastructures of Malaysian grass ferns: Schizaea digitata (Linn.) SW. and Schizaea dichotoma J.S.M.

Aziz Bidin A., . and Aryati Masturi S., . Anatomical variations and spore ultrastructures of Malaysian grass ferns: Schizaea digitata (Linn.) SW. and Schizaea dichotoma J.S.M. pp. 69-74. ISSN 0126-8643

Variations in the frond and rhizome anatomy of two Malaysian species of Schizaea Smith have been studied and documented. Characters used include the shape of vascular bundle xylem configurations and distribution of parenchymatous tissues and tracheids in the pith region. In Schizaea digitata the xylem configuration is C-shaped and phloem cells and parenchymatous tissue are found on the inner side of the xylem arc whilst in S. dichotoma the xylem is T-shaped and phloem cells are concentrated on both ends of the xylem arc. The pith of the rhizome of S. dichotoma is filled with masses of tracheids and parenchymatous tissue whilst in S. digitata the pith is made up of only the latter. Two types of spore exine ornamentations are observed. It is of the costate type in S. digatata whilst in S. dichotoma it is rugulate

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Abstract

Variations in the frond and rhizome anatomy of two Malaysian species of Schizaea Smith have been studied and documented. Characters used include the shape of vascular bundle xylem configurations and distribution of parenchymatous tissues and tracheids in the pith region. In Schizaea digitata the xylem configuration is C-shaped and phloem cells and parenchymatous tissue are found on the inner side of the xylem arc whilst in S. dichotoma the xylem is T-shaped and phloem cells are concentrated on both ends of the xylem arc. The pith of the rhizome of S. dichotoma is filled with masses of tracheids and parenchymatous tissue whilst in S. digitata the pith is made up of only the latter. Two types of spore exine ornamentations are observed. It is of the costate type in S. digatata whilst in S. dichotoma it is rugulate

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Item Type:	Article
Additional Information:	Summaries (En Ms)
AGROVOC Term:	GRAMINEAS
AGROVOC Term:	ANATOMIA DE LA PLANTA
AGROVOC Term:	ESPORAS
AGROVOC Term:	ULTRAESTRUCTURA
AGROVOC Term:	RIZOMAS
AGROVOC Term:	XILEMA
AGROVOC Term:	MALASIA
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:52
URI:	http://webagris.upm.edu.my/id/eprint/17357

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