Botanical Survey of India | Flora of India

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D.C.S. Raju, R. R. Rao and P. K. Hajra

Trees or shrubs with perulate buds. Leaves alternate, simple, finely serrate, long-petioled, pinnately veined, deciduous, exstipulate. Inflorescence a fascicle of 6 - 12 flowers in axils of deciduous bracts; flowers bisexual or plants polygamo-dioecious, pedicelled. Perianth absent or rarely very minute. Stamens many, usually 10 - 15, in one whorl near the margin of disc (expanded torus); filaments free, filiform; anthers short, oblong or linear, basifixed; connective produced apically; pollen 3-colpate. Carpels 8 - 20 or rarely less, in a single whorl, free or loosely united at base, flattened with papyraceous wings, obovate or oblong, not completely closed; stigma sessile, as a crest, lateral on upper side of carpel opposite to the insertion of ovules. Fruit a cluster of samaras, ellipsoid or obovoid, flattened. Seeds 1 - 3, closely packed; endosperm copious, oily; embryo minute, smaller than endosperm, straight; cotyledons as wide as radicle.

N.E. India, C. & S.W. China, Japan; one genus and 2 species, one species in India.

Literature. NAST, G.G. & I.W. BAILEY (1946) Morphology of Euptelea and comparison with Trichodendron. J. Arn. Arb. 27: 186 - 192. PRAGLOWSKI, J. (1974 - 75) The pollen morphology of Trichodendraceae, Tetracentraceae, Cercidiphyllaceae and Eupteleaceae with reference to taxonomy. Pollen et Spores 16: 449 - 467. SMITH, AC. (1946) A taxonomic review of Euptelea. J. Arn. Arb. 27: 175 - 185.

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