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DIVERSITY OF CYPSELAR CHARACTERS IN SOME MEMBERS OF THE TRIBE INULEAE (ASTERACEAE)

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Author NameUniversity of Author

Journal Name:

  • The International Journal of Pharmaceutical Research and Bio-Science
FULL TEXT (PDF): 
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Publication Year:

  • 2013

Volume:

  • 2

Number:

  • 2
Sayfa Aralığı:: 
82-98

Publication Language:

  • English
Abstract (2. Language): 
The tribe Inuleae Cass (sensuMerxmulleref al. 1977) is included under the sub-family Asteroideae of the family Asteraceae consisting of 200 genera and about 2000 species. According to Anderberg (1989) the tribe Inuleae is an unnatural, paraphyletic group and he has divided Inuleae into three monophyletic tribes viz. Inuleae (s.s.), Gnaphalieae and Plucheae. It is also clear that cypselar anatomical features are of great value for delimitation of taxa in some inuloid genera of Australia by Short ef al. (1989). Perusal of available literature regarding the exo-morphic features of cypsela in Inuleae shows that the cypselas features play a paramount role for determination of taxa. The present study has been under taken for the detailed study of cypselas in 6 genera and 7 species of the tribe Inuleae. The present endeavour is the result of work with 7 species of cypselas in the tribe Inuleae. Among the studied taxa, shape ,size, colour , presence or absence of ribs within the cypsela, number of ribs, thickness of pericarp, distribution of surface hairs ,carpopodium ; thickness and number of rows of corpopodial cells ; structure , colour and distribution of pappus bristles; cross-sectional area cypsela and the number of secretary ducts in each cotyledon are considered for characterization of taxa. From this study, it is obvious that detailed analysis of cypselar features is no doubt useful, taxonomic tools for isolation and characterization of taxa, along with other morphological parameters which are usually included in the floristic and other taxonomic studies.

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REFERENCES

References: 

1. Anderberg A. 1989. Phylogeny and reclassification of the tribe Inuleae (Asteraceae). Canad. J. Bof. 67: 2277-2296.
2. Anderberg A. 1991. Taxonomy and phylogeny of tribe Inuleae (Asteraceae). Pl. Sysf. Evol. 176: 75-123.
3. Anderberg A. A. and Eldenas P. 2007 -Tribe Inuleae. The Families and Genera of Vascular Planfs (ed. Kubitzki, K.) Vol. VIII -Flowering Plants. Eudicots - Asterales (eds. Kadereit J. W. and Jeffrey, C.) Springer, Heidelberg, Germany.
4. Anderberg, A. A. 2009. Inuleae. In : Sysfemafics Evolufion, and Biogeography, of Composifae (eds - Funk, V., A. Susanna, A. Stuessy, T. F. and Bayer, R, J.), IAPT, Vienna, Austria (Smithsonian Institution, Washington, DC, U.S.A.).
5. Merxmuller, H., Leins P. and Roessler, H. 1977. Inuleae Sysfemafic Review. In V. H. Heywood ef al. (eds.), The Biology and Chemisfry of fhe Composifae, Vol. 1, Academic Press, London.
6. Short, P. S., Wilson, K. E. and Nailon, J., 1989. Notes on the fruit anatomy of
ISSN: 2277-8713
IJPRBS
Australian members of the Inuleae (Asteraceae). Muelleria 7 (1) : 57-79.
7. Wiklund, A. 1983. Ighermia a new genus of the Asteraceae Inuleae. Nordic J. Bof. 3:
443-446.
8. Wiklund A. 1985. The genus Asferiscus (Asteraceae - Inuleae). Nordic J. Bof. 5: 299¬314.
9. Wiklund A. 1987. The genus Nauplifus (Asteraceae - Inuleae). Nordic. J. Bof. 7: 1-2.

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