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POLLEN FLORA OF PAKISTAN–LXXI. ROSACEAE

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dc.contributor.author PERVEEN, ANJUM
dc.contributor.author QAISER, MUHAMMAD
dc.date.accessioned 2022-12-05T09:09:44Z
dc.date.available 2022-12-05T09:09:44Z
dc.date.issued 2014-07-04
dc.identifier.citation Perveen, A., & Qaiser, M. (2014). Pollen flora of pakistan-lxxi. rosaceae. Pakistan Journal of Botany, 46(3), 1027-1037. en_US
dc.identifier.issn 2070-3368
dc.identifier.uri http://142.54.178.187:9060/xmlui/handle/123456789/14661
dc.description.abstract Pollen morphology of 50 species representing 17 genera of the family Rosaceae i.e., Alchemilla, Argimonia, Cotoneaster, Crataegus, Duchesnea, Fragaria, Eriybotyra, Filipandula, Geum, Malus, Prunus, Potentilla, Pyrus , Rosa Sibbaldia, Sorbaria and Sorbus has been studied from Pakistan by light and scanning electron microscope. Pollen grains are usually free, radially symmetrical, isopolar, prolate-spheroidal to subprolate or oblate-spheroidal rarely perprolate, tricolporate rarely tricolpate. Tectum mostly coarsely-finely striate, rarely striate-rugulate, scabrate or spinulose often reticulate. Rosaceae is more or less eurypalynous family. Significant variation is found in P/E ratio, shape and exine ornamentation and on the basis of these characters family has been divided into seven pollen types viz., Agrimonia eupatoria–type, Alchemilla ypsilotoma–type, Cotoneaster affinis–type, Fragaria nubicola–type, Geum roylei–type, Malus pumila–type, Potentilla pamirica–type. Pollen data is useful at specific and generic level. en_US
dc.language.iso en en_US
dc.publisher Karachi: Pakistan Journal of Botany, botanical garden, university of karachi en_US
dc.title POLLEN FLORA OF PAKISTAN–LXXI. ROSACEAE en_US
dc.type Article en_US


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