ISSN : 0975-9492
CODEN : IJPSQQ





INTERNATIONAL JOURNAL OF PHARMA SCIENCES AND RESEARCH


Open Access

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ABSTRACT

Title : EXTERNAL FEATURES OF CYPSELAS OF SOME SPECIES OF COMPOSITAE, WITH THE HELP OF LM
Authors : Bidyut Kr. Jana, Sobhan Kr. Mukherjee
Keywords : External features of cypselas, Compositae
Issue Date : December 2012
Abstract :
The present study deals with the detailed external features of cypselas in 9 species belonging to 7 genera of the family Compositae. All the studied species exhibit different external features. Except Inula ensifolia, all the studied species are homomorphic. Morphologically, pappus structure is also important. In the cypsela of Telekia speciosa, Aster alpinus , scaly pappus are present. In the cypsela of Elephantopus carolinianus, sitae type of pappus is present. In the cypselas of remaining studied species, barbellate pappus bristles are present. Layer of carpopodial cells are also variable and varies from 1-7 layers in studied species. In the cypsela of Aster alpines, stylopodium is enlarge and prominent. Among the studied cypselas, some cypselas are with slightly curved ( Inula ensifolia, Inula Britannica, Inula helenium ) in direction. Surface hairs are alwase, biseriately forked type. An artificial key is presented here to recognize the studied taxa at the specific level.
Page(s) : 548-559
ISSN : 0975-9492
Source : Vol. 3, No.12