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A Taxonomical And Morphological Study For Two Species Of Genus Equisetum L. Equisetaceae Growing In Some Areas In Lattakia- Syria

دراسة تصنيفية و مرفولوجية لنوعين من جنس ذنب الخيل L. Equisetum من فصيلة Equisetaceae ينتشران في بعض مناطق اللاذقية- سورية

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 Publication date 2014
and research's language is العربية
 Created by Shamra Editor




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At this study, two species of genus Equisetum L. have been recorded, that they were: Equisetum telmateia L. and Equisetum ramosissimum Desf. E. ramosissimum Desf. was recorded for the first time in Lattakia. The morphological features were used to separate two species: ( number of the scaly leaves in the node area, shape of the sheath, and number of its teeth, number of the grooves at the stem, length of the strobilus and its color, length of the lateral branches). This study showed that: the spores had three coats, the exosporium rounded by the spore like bars with a wide terminal that called: elaters. Also showed obvious difference in measurements the strobilus and the shapes of sterile and fertile stem.



References used
BOULOUS, L. Flora Of Egypt, Vol 1, Al Hadara Publishing Cairo, Egypt, 1999, 2-4
DE LANGHE, J. E; DEL VOSALLE, L; DUVIGNEAUD, J; LAMBINON, J; VANDEN BERGHEN,C. Nouvelle Flore De La Belgique, DU Grand– Duche De Luxembourg, Du Nord De La France Et Des Regions Voisines (Pteridophites- Et Spermatophytes ) , EDT 3, 1983, 7-10
DUKIC, D; BOZIN, B. Phenolic Compounds In Field Horsetail (Equisetum Arvense L) As Natural Anti Oxidants, University Of Novisad, Serbia, 2008
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At this study, two species of genus Equisetum L. have been recorded, that they were: Equisetum telmateia L. and Equisetum ramosissimum Desf. E. ramosissimum Desf. was recorded for the first time in Lattakia. The morphological features were used to separate two species: ( number of the scaly leaves in the node area, shape of the sheath, and number of its teeth, number of the grooves at the stem, length of the strobilus and its color, length of the lateral branches). This study showed that: the spores had three coats, the exosporium rounded by the spore like bars with a wide terminal that called: elaters. Also showed obvious difference in measurements the strobilus and the shapes of sterile and fertile stem.
أظهرت دراسة جنس المنتعش Amaranthus L. في بعض المواقع في اللاذقية وجود 5 أنواع وهي: Amaranthus viridis L. , Amaranthus blitoides S. Wats., Amaranthus retroflexus L., Amaranthus palmeri S.Wats, Amaranthus sp. . النوع Amaranthus palmeri يُسجّل لأول مرة في سوريا، أما النوع Amaranthus viridis فقد كان مسجلاً في فلورا سوريا ولبنان كمرادف لنوع آخر هو Amaranthus lividus بينما سُجّلا في فلورات أخرى كنوعين منفصلين، والنوع Amaranthus sp. قد يرجع لهجين شكَّل نوعاً مستقلاً بالنظر إلى اختلافه كلياً عن الأنواع الأخرى المعروفة جيداً. . بينت دراسة حبات الطلع أنها من النمط الكروي عديد ثقوب الإنتاش Polypantoporate عند جميع الأنواع المدروسة، مع اختلاف بسيط بالأبعاد، واختلاف بعدد فتحات الإنتاش على الوجه المرئي للحبة حيث تراوح متوسط عدد الثقوب على الوجه الواحد بين 14 ثقباً عند Amaranthus retroflexus، و24 ثقباً عند Amaranthus palmeri. وقد بينت نتائج دراسة مسام الورقة وجود أربعة أنماط من المسام هي: Anisocytic, Anomocytic, Isotricytic, Tetracytic، حيث اشتركت الأنواع الخمسة بالنمط Anomocytic، ولوحظ وجود أكثر من نمط في الورقة الواحدة في كل الأنواع عدا النوع الجديد. وبينت الدراسة الإحصائية درجة القرابة بين الأنواع المدروسة، وأن النوع الجديد كان أقرب إلى النوع Amaranthus palmeri.
This study was performed on three types of the genus Fumaria. The measurements were taken from the various parts of the flower petals, Sepals , the stamina and fruits. Also, an anatomical study was conducted of the root and stem. The shape and dia meter of pollen grains, the diameter of germination hole and the number of total pollen grains were studied. It was observed that the longest flowers and fruits in the specie F.capreolata.
The results of studying the morphological characteristics of the flower, fruit, pollen grains, and seeds between some of Hypericum genus species, show that there are relevant morphological differences among the studied species, which can be considered as taxonomical criteria for distinguishing the studied species of Hypericum genus from each other.
Taxonomic study confirmed of genus Ornithogalum L. (Star of Bethlehem) recording 4 spices belonging to him are: O.narbonense L., O.montanum Cyr., O.umbellatum L., O.ulophyllum Hand.. for the first time in the Jableh region, The morphology of the d atabase was put included (Habit - bulbs - bulbest surrounding Balbs - leaves- presence of the white line on adaxial of the leaf - the green line on abaxial of the tepal - stamens - pistil - fruits - seeds - with type and dimensions of pollens and definition the stomatal type) and linked these character by using Statistica for Dendrogram which showed the presence of 3 clusters, cluster common of two spices O.narbonense, O.ulophyllum, While an alone all of two spices O.umbellatum O.montanum, cluster of its own, and put a taxonomic key to distinguish between studied species.
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