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Volume 33, Issue 1-4, 1991

Articles

Life-Forms and Bioloigical Spectrum of the Flora of the Punjab State, India

https://doi.org/10.20324/nelumbo/v33/1991/74495

Published 2024-05-22

  • M. Sharma
    • ,
  • Kusum Rajpal

M. Sharma
Department of Botany, Punjabi University, Patiala

Kusum Rajpal
Department of Botany, Punjabi University, Patiala

Abstract

1, 119 species of spermatophytes recorded from the Punjab State have been analysed as to their exact life-forms. These include 243 (21.7%) phanerophytes, 49 (4.4%) chamaephytes, 83 (7.4%) hemicryptophytes, 215 (19.2%) cryptophytes and 529 (47.3%) therophytes. Similar analyses have also been made for the two floristic subunits of the Punjab State, namely semi-arid Punjab and Punjab Shivaliks. These have been compared with Raunkiaer's normal and other spectra of contiguous and comparable areas. The phytoclimate of the State and its floristic sub-units have been found to be therocryptophytic which is characteristic of semi-arid and intensively cultivated areas. The results support Raunkiaer's concept of correlation between the phytoclimate and statistical distribution of life-forms in the flora of a region.
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