| Abstract: |
The family Myrtaceae includes a ‘arge number of species (2500 to 3000) which are reputed for their volatile oil contents and high economic values. Amongest these pecies which are includea in this study are E. camaithlenssMuell., . diver foZc Bonpi. , . j’icfolia F. Muell. nd E. Zehman Preiss., whichae growing in Egypt. This study included two parts:?art I: A Botanical Stydy Of The Four Species of Ecaypvus Under Investigation.rt II: A Chemical study Of The Four Species Of Eucalyptis.PART IBotanical Stuay Of The FourSpecies Ot EzicaZyptusUnder Investigation,*********************This part dealt withth’macro-and micromorpholoqicalstudy of the different plant organs of E. camaLdZensisF. Muell., E. dversifoiia Bonpl., E. fici.fola F. Muell. and• E. Zehmanii. Preiss growing in Egypt.• Chapter I : Macromorphology of E. camalduiensi.s F. Much,,E. duersi.folia Bonpi., E. ficifo’Iia F. Much.arid £. lehmani Preiss.A. E. camaidzflensis F. Muell.:iabitat : B. camaLduienslsF.Muell.is a tree, 13—15 metersin height and 80-90 cm in diameter near thebase of the trunk and flowers in May and Junehe Stem: Cylindrical, hard, woody; young branches,green; old branches are darker in colour andwith greyisti tingetie Leaf Simple, alternate, exstipulate and petiolateL.,amina, green, lanceolate, glabrous; margin,entire; apex, acute) acuminate or macronate. base, asymmetric, occasionally symmetric; petioie short and twisted.Theinflorescence: Mixed inflorescence, composed ofV polycasi1 cymes arranged in a racemose manner:the rachis, more or, less rounded. Each cymeis composed of 3—7 flowers.e Flower; Pedicellate, creamy, epigynous; the receptacle is cup—shaped, small; the operculum i yellowish- green, peaked hemispherical; stamens, free, numerous ; filaments, creamy in colour; ovary partly fused with the receptacle, inferior, tetr’a—or pentacarpillary , te tra-or pentalocul ar, axile placenta; style, conical, curved; stigma, pointed.The Fruit: Capsule, globular, truncate, tetra—or pentaloc— ular, with 4—5 exerted valves; pericarp,yellowish—green, hard.Seed : Small, pyramidal, exalbuminous reddish-brown;embryo, cont.aining protein.
|
|
|