Advertisement

Proceedings: Plant Sciences

, Volume 90, Issue 6, pp 499–508 | Cite as

Scanning electron microscopic studies on the seedcoat surface patterns of South Indian species ofLindernia All. (Scrophulariaceae)

  • V V Sivarajan
Article
  • 31 Downloads

Abstract

Seeds of fourteen species ofLindernia All., from South India were studied by scanning electron microscopy as to their surface ultrastructure. Results show some correspondence with the subgeneric classification proposed by Philcox. Seeds are broadly of two types, ribbed and unribbed. Sect.Bonnaya is rather homogeneous having unribbed seeds whereas all other sections studied possess prominently or faintly ribbed seeds. The ornamentation patterns however, do not give such a correlation. The seedcoat surfaces are either foveolate or pitted and with minute excrescences of different kinds—granular, fibrillar, filamentous or dagger-shaped. Taxonomic implications of the characters in the investigated species are discussed.

Keywords

Seed coat surface pattern ornamentations excrescences foveolate scanning electron microscopy 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Brisson J D and Peterson R L 1976 A critical review of the use of Scanning Electron Microscopy in the study of seed coat;Illinois Inst. Techn. Res. Inst. SEM/1976/II, 477–495Google Scholar
  2. Brisson J D and Peterson R L 1977 The Scanning Electron Microscope and X-ray microanalysis in the study of seeds. A bibliography covering the period of 1967–76.Illinois Inst. Tech. Res. Inst/SEM/1977/II, 697–712.Google Scholar
  3. Chuang T and Heckard L R 1972 Seedcoat morphology inCordylanthus (Scrophulariaceae) and its taxonomic significance;Am. J. Bot. 59 258–265CrossRefGoogle Scholar
  4. Haines H H 1922 Scrophulariaceae;Botany of Bihar and Orissa, Botanical Survey of India: CalcuttaGoogle Scholar
  5. Heywood V H and Dakshini K M M 1971 Fruit structure in the Umbelliferae-Caucalideae (ed.) V H Heywood;The Biology and Chemistry of the Umbelliferae (London: Academic Prest) pp. 217–232Google Scholar
  6. Hooker J D 1884 Scrophulariaceae;The Flora of British India (Kent: Reeve)4 279–286Google Scholar
  7. Mussleman L J and Maun W F Jr 1976 A survey of surface characteristics of seeds of Scrophulariaceae and Orobanchaceae using scanning electron microscopy;Phytomorphol. 26 370–378Google Scholar
  8. Philcox D 1964 Typification ofRuellia antipoda Linn. and clarification of its synonymy;Kew Bull. 17 481–484CrossRefGoogle Scholar
  9. Philcox D 1968 Revision of the Malesian species ofLindernia All. (Scrophulariaceae);Kew Bull. 22 1–72CrossRefGoogle Scholar
  10. Santapau H 1897The flora of Khandala on Western Ghats of India (3 rd ed.): Botanical Survey of India, Calcutta.Google Scholar

Copyright information

© Indian Academy of Sciences 1981

Authors and Affiliations

  • V V Sivarajan
    • 1
  1. 1.Department of BotanyUniversity of CalicutCalieutIndia

Personalised recommendations