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Micro- and macro-morphological characters of fruit surface of seven species of Symphytum L. in Turkey were investigated. Fruits of S. asperum Lepechin, S. sylvaticum Boiss., S. brachycaylx Boiss and S. kurdicum Boiss. & Hausskn have indistinct basal ring which in S. ibericum, S. orientale and S. bornmuelleri is distinct. Based on the structure and ornamentation of the fruit surface, tuberculate and rugose types can be distinguished. Micro-morphological characters could be useful in solving taxonomic problems of Symphytum asperum, S. kurdicum, S. ibericum, S. orientale, S. bornmuelleri, S. brachycalyx and S. sylvaticum. Key words: Symphytum L.; Boraginaceae; Fruit surface; Micromorphology; SEM; Turkey DOI: 10.3329/bjb.v38i2.5145 Bangladesh J. Bot. 38(2): 185-188, 2009 (December)

Symphytum asperum Lepechin, S. ibericum Steven and S. sylvaticum Boiss. were examined morphologically, micromorphologically and anatomically. Scanning electron microscopy was used to examine leaf surface and trichomes of these species. These species had bifacial and hypostomatous leaf types. Epidermal cells of leaves were usually polygonal or irregular in form. The pattern of anticlinical cells may vary in different species and between the upper and lower epidermis of the same species. Stomata are anisocytic and anomocytic in three species. Stomata index is 27.5 for S. sylvaticum, 24.65 for S. ibericum and 21.86 for S. asperum glandular trichomes are capitate in forms and more dense on the lower epidermis than upper epidermis. Eglandular trichomes are simple, short or long, unicellular or multicellular and thin or thick. Key words: Micromorphology, Anatomy, Symphytum DOI = 10.3329/bjb.v36i2.1496 Bangladesh J. Bot. 36(2): 93-103, 2007 (December)  Â

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