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Proceedings: Plant Sciences

, Volume 95, Issue 1, pp 7–15 | Cite as

Cotyledonary architecture in some Asteraceae

  • K Ravindranath
  • J A Inamdar
Article
  • 22 Downloads

Abstract

Cotyledonary blade is symmetrical in all the species of Asteraceae. Morphological features such as base, apex and margin vary from species to species. Venation pattern conforms to pinnate craspedodromous, pinnate camptodromous and acrodromous type. Higher order veins noticed are up to 5°. Primary vein is either stout massive, moderate or weak. The thickness of the veins gradually decreases from primary to higher order veins. Marginal ultimate venation is either incomplete, looped or fimbriate. Areoles are absent inEclipta prostrata, Chrysanthemum segetum andCalendula suffruticosa spalgarbiensis. Vein endings are either simple or branched. In some species veins lack vein endings, which may or may not be associated with tracheids. Tracheids vary in their shape and arrangement in different species. Loop formation is observed. Isolated tracheids and extension cells are observed inCalendula suffruticosa sptomentosa. All categories of veins are jacketed by parenchymatous bundle sheath.

Keywords

Anatomy cotyledonary architecture venation pattern Asteraceae 

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References

  1. Banerjee G 1978a Foliar venation ofSonchus arvensis, Curr. Sci. 47 26–27Google Scholar
  2. Banerjee G 1978b Foliar venation and leaf histology of certain members of Compositae II. Members with combination Craspedodromy (C)Amberboa ramosa (Roxb.) Wagner (Voluterella ramosa Roxb);J. Indian Bot. Soc. 57 338–342Google Scholar
  3. Banerjee G and Deshpande B D 1973 Foliar venation and leaf histology of certain members of Compositae;Flora 162 529–532Google Scholar
  4. Gupta B 1961 Correlation of tissues in leaves. 1. Absolute vein-islet numbers and absolute veinlet termination numbers;Ann. Bot. 25 65–70Google Scholar
  5. Gupta M 1978 Cotyledonary architecture in Trifolieae;Acta Bot. Ind. 6 171–176Google Scholar
  6. Hara N 1962 On the types of foliage venation ofDephne psuedomezereum A. Gray;Bot. Mag. Tokyo 75 107–113Google Scholar
  7. Herbst D 1972 Ontogeny of foliar venation inEuphorbia forbessii;Am. J. Bot. 59 843–850CrossRefGoogle Scholar
  8. Hickey L J 1973 Classification of the architecture of dicotyledonous leaves;Am. J. Bot. 60 17–33CrossRefGoogle Scholar
  9. Hickey L J and Wolfe J A 1975 The basis of angiosperm phylogeny-vegetative morphology;Ann. Misso. Bot. Gard. 62 538–589CrossRefGoogle Scholar
  10. Inamdar J A and Murthy G S R 1978 Leaf architecture in some Solanaceae;Flora 167 265–272Google Scholar
  11. Kasapligil B 1951 Morphological and ontogenetic studies ofUmbellulara californica Nutt andLourus nobilis L;Univ. Calif. Pub. Bot. 25 115–240Google Scholar
  12. Murthy G S R and Inamdar J A 1978 Effect of colchicine and morphactin on the cotyledonary venation ofLycopersicon esculentum Mill varangurlata;Phyton 19 337–347Google Scholar
  13. Pray T R 1963 Origin of vein endings in angiosperm leaves;Phytomorphology 13 60–81Google Scholar
  14. Ravindranath K and Inamdar J A 1982 Leaf architectural studies in Asteraceae 1;Pak. J. Bot. 14 143–154Google Scholar
  15. Rao V S, Shenoy K N and Inamdar J A 1980 Clearing and staining technique for leaf architectural studies;Microscopica Acta 83 307–311Google Scholar
  16. Rao Venigella S, Inamdar J A and Murthy G S R 1982 Cotyledonary architecture in cultivars of cotton;J. Econ. Tax. Bot. 3 335–341Google Scholar
  17. Sehgal L and Paliwal G S 1974 Studies on the leaf anatomy of Euphorbia II Venation patterns;Bot. J. Linn. Soc. 68 173–208CrossRefGoogle Scholar
  18. Singh V, Jain D K and Sharma M 1976 Leaf architecture inSalix;J. Indian Bot. Soc. 55 140–150Google Scholar
  19. Slade B F 1957 Leaf development in relation to venation as shown inCercis siliquastrum L.,Prunus serrulata Lindl andAcer pseudoplatanus L.;New Phytol. 56 281–300CrossRefGoogle Scholar
  20. Slade B F 1959 The mode of origin of the vein endings in the leafLiriodendron tulipifera L.;New Phytol. 58 299–305CrossRefGoogle Scholar
  21. Urban I 1873 Prodromus einer Monographic der GattungMedicago LVerh. Bot. Ver. Prov. Erandenb15 1–185Google Scholar

Copyright information

© Indian Academy of Sciences 1985

Authors and Affiliations

  • K Ravindranath
    • 1
  • J A Inamdar
    • 1
  1. 1.Department of BiosciencesSardar Patel UniversityVallabh VidyanagarIndia

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