Palynology and Seed Micromorphology of Some Geranium L. (Geraniaceae) Species from Hatay (Turkey)

Abstract

In the present study, pollen and seed micromorphology of some Geranium L. species (G. asphodeloides, G. columbinum, G. dissectum, G. libanoticum, G. molle, G. purpureum, G. pyrenaicum, G. robertianum, and G. rotundifolium) distributed in Hatay was investigated using light and scanning electron microscope. Palynological analysis showed that the pollen grains were generally large, spheroidal and spheroidal-subprolate, radially symmetrical, tricolporate, and reticulate-clavate. The seeds ranged from circular-elliptical to ovate-elliptical in shape, with foveate, foveate-striate, reticulate, reticulate-faveolate, and rugose-foveate ornamentation. The results demonstrated that pollen and seed micromorphology was useful for the taxonomy of these species.    

Keywords

• Geranium,Geraniaceae,palynology,seed,Hatay province

Hatay’da Yayılış Gösteren Bazı Geranium L. (Geraniaceae) Türlerinin Palinolojisi ve Tohum Mikromorfolojisi

Abstract

Bu çalışmada Hatay’da doğal yayılış gösteren bazı Geranium L. türlerinin (G. asphodeloides, G. columbinum, G. dissectum, G. libanoticum, G. molle, G. purpureum, G. pyrenaicum, G. robertianum ve G. rotundifolium) polen ve tohum morfolojileri ışık ve taramalı elektron mikroskobuyla incelenmiştir. Palinolojik analiz sonuçlarına göre incelenen türlerin polenleri genel olarak büyük boyutlarda, prolat-sferoidal şekilde, radial simetrikal, trikolporat tipte ve retikulat-klavat yüzeye sahip olduğu belirlenmiştir. Tohum morfolojisine bakıldığında ise tohumların sirküler-eliptik ile ovat-eliptik arası değişik şekillerde olduğu, tohum yüzeyi bakımından foveat, foveat-striat, retikulat, retikulat-faveolat ve rugoz-foveat tip ornamentasyonlara sahip olduğu belirlenmiştir. Yapılan çalışma sonuçlarına göre polen ve tohum mikromorfolojilerinin Geranium türlerinin taksonomileri için oldukça kullanışlı olduğu tespit edilmiştir.    

Keywords

• Geranium,Geraniaceae,palinoloji,tohum,Hatay

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