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    Comparative Studies on Khaya. A. Juss.(meliaceae) in Nigeria
    (2006-06) Ibrahim, A. I.; Ayodele, A. E.; Jegede, A. I.; Kunle, Y. F.
    Comparative phytochemical, microscopical and chemomicroscopica! studies were carried out on the genus Khaya with the aim of obtaining useful characters for the identification and delimitation of species boundaries. Tannins and saponins were present In all the species while phenols were detected in all except K. grandlfollola. Protein and anthraquinones were present in the bark of all. iba species. Carbohydrate is present in all the species except in the hark of K. Ivoriensls. Flavonoids and phlobatannins were absent in all the taxa. Microscopical examination of the powdered bark revealed different types and shapes of lignified sclerelds, abundant distribution of prismatic calcium oxalate crystals, druses, lignified cork-cells, fibres, medullary rays and parenchyma cells which may contain starch grains.
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    The morphology and preliminary phytochemistry of albizia saman (jacq.) F. mull
    (Klobex Academic Publishers, 2003-12) Ayodele, A. E.; Ibidun, D. K.; Ogunshe, A. A. O.
    The morphology and phytochemistry of Albizia saman have been investigated. The leaflets are elliptic to oblong with attenuate to obtuse bases. The leaf apex is obtuse while the surface is glabrous with an entire margin. Epidermal cells are irregular to polygonal with straight to curved anticlinal walls on the adaxial surface. On the abaxial surface, the cells are polygonal with straight to slightly curved anticlinal walls. The leaves are hypostomatic with nnomocytic stomata. Trichomes are simple, unscriate and restricted to the abaxial surface of the leaf. Pollen grains arc large and stibprolate occurring either as monads occasionally or as polyads in most cases. Photochemical screening revealed the presence of alkaloids, cardiac glycosides and saponins in the leaf.
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    Foliar epidermal characteristics and preliminary phytochemistry of Ixora coccinea Linn, and ixora parviflora vahl.
    (Klobex Academic Publishers, 1999-06) Ayodele, A. E.; Gbadebo, J. O.
    Two ornamental species of ixora have been investigated morphologically and phytochemicaly. The leaves are oblong with acute apices and cordate bases In I. coccinea and elliptic with acuminate apices and obtuse bases In I. parviflora. The leaves are also larger in the latter. Epidermal cells are Isodlametric on the adaxial surfaces and irregular on the abaxial surfaces with curved anticlinal walls. Epidermal cells are larger In I parviflora. Paracytic stomata are found in both taxa while I. coccinea Is amphistomatic with the stomata on the adaxial surface restricted to areas around the midvein, I parviflora Is hypostomatic. A higher stomatal Index occurs In I. coccinea Trichomes which are restricted to the abaxial surfaces of the two taxa are simple, short, unicellular, peg-like or cone-like, and sometimes curved. Trichomes are, however, longer In I. parviflora Alkaloids, saponins and tannins are present in both taxa. Free or combined anthraqulnones and cardinc glycosides were not detectable in any of the species. An artificial key is present for the Identification of the two species.