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Register a new userوجود الطحلب الأسمر الاستوائي الأصل tetrastromatica Padina قرب اللاذقية (سورية، البحر المتوسط)
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Damascus University ورقة بحثية
Publication date
2004
fields
Biology
and research's language is
العربية
Authors
حامد ميهوب( باحث )
Created by
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أشير إلى وجود أحد الطحالب السمراء المعروف بتوزعه في البحـار الاسـتوائية علـى الـشاطئ السوري قرب اللاذقية و هو البادينا رباعية الطبقات، الذي يعد نوعاً جديداً بالنسبة للبحر المتوسط. و قـد درست العينات السورية بالتفصيل نظراً للاختلافات المورفولوجية و التشريحية التي ذكرها الباحثون الذين تناولوا دراسة هذا النوع تبعاً للبيئة، و التوزع الجغرافي للعينات المدروسة، و قدمت النتائج المتعلقة بذلك. النبات قليل التكلس مؤلف من مجموعة من القطع الصفيحية يتراوح طولها بين 8-16 سم و عرضها بين 5.0-3 سم، و هي تتألف من أربع طبقات خلوية عموماً. أما أعضاء التكاثر فتقع مباشرة قرب خطوط الأشعار السطحية على الوجه الخارجي للنبات، و تكون أكياس الأبواغ عارية. النباتات العروسية ثنائيـة المسكن و الأكياس العروسية الأنثوية محاطة بغشاء جامع . و أخيراً أعطيت بعض المعلومات عن بيئة النبات المدروس و المجتمعات النباتية البحرية التـي ينمـو فيها، و توزعه الجغرافي بين مداري الجدي و السرطان.
No English abstract
References used
Aleem, A. A. 1993. The marine algae of Alexandria, Egypt. Univ. of Alexandria, 154pp
Allender, B.M. et Kraft, G. T, 1983 –the marine algae of Lord Howe Island , the Dictyotales and Cutleriales , Brunonia , (1) : 73-130
Börgesen; F.; 1930- Some Indian brown and green algae . Ind. Bot. Soc. vol. 1x, P. 172, fig. 10
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