General View of Malvaceae Juss. S.L. and Taxonomic Revision of Genus Abutilon Mill. in Saudi Arabia

Abstract

This works deals with the recent opinions about the new classification of the core Malvales with special reference to the family Malvaceae s.l. and the morphological description and variations in the species of the genus Abutilon Mill. Taxonomical features of the family as shown in the recent classification systems, with full description of the main divisions of the family. Position of Malvaceae s.l. in the different modern taxonomical systems is clarified. General features of the genus Abutilon stated according to the careful examination of the specimens. Taxonomic position of Abutilon in the Malvaceae is given. Artificial key based on vegetative morphological characters is provided.

Taxonomic Studies on Some Members of the Genus <i>Abutilon</i> Mill. (Malvaceae)

“…A scree plot is useful to get information on the importance of the eigenvalues that are represented by PCA ( Figure 15). American Journal of Plant Sciences The A. fruticosum species is well known in Saudi Arabia and were reported by previous authors (Collenette 1985(Collenette , 1999Migahid 1996;Chaudhary 2001;Taia 2009). Collenette (1999) cited two taxa affinities to A. fruticosum species and she called one A. sp.…”

“…Species of A. bidentatum is also well known in Saudi Arabia and was recorded by previous authors (Collenette 1985(Collenette , 1999Migahid 1996;Chaudhary 2001;Taia 2009). Collenette (1999) reported two taxa affinity to A. bidentatum species and she called one A. sp.…”

“…belongs to subfamily Malvoideae, Malvaceae family, comprising about 200 species, annual or perennial herbs and shrubs or even small trees, distributed in tropics and subtropics of the Americas, Africa, Asia, and Australia. The genus has significant importance, this is due to the fibbers and they contain different chemical compounds such as flavonoids, sterols, triterpenes, anthocyanins and fatty acids [2] [3].…”

Contests over pastoralism in the southern Sahara and northern Sahel

“…The relative value of particular species to different interests is evident with the two herbs: Abutilon pannosum and Tribulus terrestris. For pastoralists, both are highly palatable to camel and goat herds (Dorges et al, 2003;Taia, 2009). For farmers, however, the two herbs are nuisances, creating more labor for them.…”

“…Both have tremendous adaptabilities to extreme events. Abutilon is resistant to drought (Taia, 2009). Tribulus recovers well from fire (Walton, 2003;Walton and Walsh, 2004).…”