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Seed structure and systematic position ofHampea nutricia (Malvaceae)

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Abstract

The mature seeds ofHampea nutricia are glabrous, ovoid, arillate and dark tan in colour. Longitudinal streaks on the seed surface correspond to the underlying integumentary vascular strands. Testa and tegmen are derived from the outer and inner integuments, respectively. The outer epidermis of the tegmen forms a palisade-like macrosclereid layer, the inner epidermis a fringe layer. The endosperm is single-layered and also fills the space between the two cotyledons. The embryo is nearly straight, gland-dotted; it has asymmetrical and folded cotyledons, and gossypol ducts. Systematic position ofHampea is discussed and its placement inMalvaceae is supported.

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Authors and Affiliations

  1. National Botanical Research Institute, 226001, Lucknow, India

    R. P. Singh

  2. Botany Department Y.D. (P.G.) College, Lakhimpur Kheri (U.P.), India

    M. P. S. Chauhan

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  1. R. P. Singh
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  2. M. P. S. Chauhan
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Singh, R.P., Chauhan, M.P.S. Seed structure and systematic position ofHampea nutricia (Malvaceae). Pl Syst Evol 147, 55–61 (1984). https://doi.org/10.1007/BF00984579

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  • DOI: https://doi.org/10.1007/BF00984579

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