Taxonomic study for Lamiales order in Tuban Delta, Lahej Governorate, Yemen
University of Aden Journal of Natural and Applied Sciences,
Vol. 24 No. 2 (2020),
31-10-2020
Page 357-372
DOI:
https://doi.org/10.47372/uajnas.2020.n2.a05
Abstract
This study deals with the Lamiales order taxonomically, in Delta Tuban, Lahej Governorate, Yemen, during the period from December 2013 to September 2019. The present study revealed the existence of 12 species within 9 genera belonging to six families of the Lamiales. The largest family is: Scrophulariaceae (2 genera and 3 species). This family represents a high percentage (25%) of the total species of the studied area. The greatest genera recorded are: Ocimum, Ruellia and Schweinfurthii (2 sp. for each), these three genera represent about 50% of the total species recorded in the studied area. The most dominant life form is: Chamaephytes (5 sp.) with (41.67%).
The vegetative and reproductive characters proved that they are with high taxonomic values in identification and classification at the level of species, genera and families.
One of the remarkable finding in the present investigation is the recording of Ruellia simplex for the first time among the flora of Yemen.
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Taxonomic, Lamiales Order, genera, species, Tuban delta, Lahej
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