EJONS INTERNATIONAL JOURNAL ON MATHEMATICS, ENGINEERING & NATURAL SCIENCES ISSN 2602 - 4136

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Abstract


INVESTIGATION OF FLOWER, SEED AND FRUIT STRUCTURE OF Helleborus orientalis Lam (RANUNCULACEAE) TAXA

In this study, flower morphology, seed and fruit structure of Helleborus orientalis Lam. (Ranunculacaae) species were investigated. Helleborus L. is a poisonous plant species with about 20 species spread from the Ranunculus (Ranunculaceae) family to the borders of central, southern and eastern Europe to the Caucasus. Helleborus L. genus is represented by two species in Turkey. These are H. vesicarius Aucher and H. orientalis Lam. species. In our country, "hellebore", known as such, grows naturally in Turkey. H. orientalis is popularly referred to by local names such as Bohça grass, Black hellebore, Black harp, Horn horn, Danabağırtan, Danakıran. It is a perennial herbaceous plant. Their leaves are up to 60 cm without leaves and the base leaves are always green. It has a long petiole, broad leaves, in the form of a digitate, and the flower structure is simose. Sepals are greenish white, sometimes purplish, ovate, 20-30 (-35) mm. The average life of a single flower after it is fully opened is about 6 days. The flower cover is lined on two rows, it has 5 wide rings on the outside, which looks like a sepal or petal, the fruit is permanent, the ones in the inner ring are small, tubular, 2-lip pieces (nectarium). Short anthers on the long hillock are rarely blunt. Anthers are at least a few seeded follicle groups of fruits united at the bottom. Seeds are usually more than 6. Flowering is usually between March and May. H. orientalis species generally spreads in the Black Sea region and its general distribution is Greece and the Caucasus. It is usually between 1-2200 meters in forest openings and under forests, in bush habitats. Turkey, A2, A3, A4, A5, A6, A7, A8, A9 and B3 shows the distribution frame. The study material was collected from the flowery plateau location of Bilecik province in A3 square on 23.05.2020 and turned into a herbarium material. Morphological studies were examined by making measurements on live samples.



Keywords
Helleborus orientalis, Morphology, Seed, Fruit, Bilecik



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