Plant Systematics and Evolution

, Volume 147, Issue 1–2, pp 55–61 | Cite as

Seed structure and systematic position ofHampea nutricia (Malvaceae)

  • R. P. Singh
  • M. P. S. Chauhan
Article

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.

Key words

Angiosperms Bombacaceae Malvaceae Hampea nutricia Seed morphology and anatomy aril 

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Copyright information

© Springer-Verlag 1984

Authors and Affiliations

  • R. P. Singh
    • 1
  • M. P. S. Chauhan
    • 2
  1. 1.National Botanical Research InstituteLucknowIndia
  2. 2.Botany Department Y.D. (P.G.) CollegeLakhimpur Kheri (U.P.)India

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