The cypsela morphology of 5 Inula species was analysed using scanning electron microscopy. Mature cypsela of Inula shows prominent ribs. Cypsela micromorphological characters are found useful to strengthen the specific delimitation of the genus Inula from Hungary.
Abid, R. and Qaiser, M. (2002): Cypsela morphology of Inula L. (s. str.) and its allied genera (Inuleae-Compositae) from Pakistan and Kashmir. — Pakistan J. Bot. 34(3): 207–223.
Qaiser M. , 'Cypsela morphology of Inula L. (s. str.) and its allied genera (Inuleae-Compositae) from Pakistan and Kashmir ' (2002 ) 34 Pakistan J. Bot. : 207 -223.
Abid, R. and Qaiser, M. (2007): Cypsela morphology of the genus Pulicaria Gaertn. (Inuleae-Asteraceae) from Pakistan. — Pakistan J. Bot. 39(4): 991–997.
Qaiser M. , 'Cypsela morphology of the genus Pulicaria Gaertn. (Inuleae-Asteraceae) from Pakistan ' (2007 ) 39 Pakistan J. Bot. : 991 -997.
Anderberg, A. A. (1989): Phylogeny and reclassification of the tribe Inuleae (Asteraceae). — Can. J. Bot. 67: 2277–2296.
Anderberg A. A. , 'Phylogeny and reclassification of the tribe Inuleae (Asteraceae) ' (1989 ) 67 Can. J. Bot. : 2277 -2296.
Haque, M. Z. and Godward, M. B. E. (1984): New records of the carpopodium in Compositae and its taxonomic use. — J. Linn. Soc., Bot. 89: 321–340.
Godward M. B. E. , 'New records of the carpopodium in Compositae and its taxonomic use ' (1984 ) 89 J. Linn. Soc., Bot. : 321 -340.
Shekhar, S., Pandey, A. K. and Anderberg, A. A. (2011): Cypsela morphology and anatomy in some genera formerly placed in Inula (Asteraceae: Inuleae-Inulinae). — Rheedea 21(1): 13–22.
Anderberg A. A. , 'Cypsela morphology and anatomy in some genera formerly placed in Inula (Asteraceae: Inuleae-Inulinae) ' (2011 ) 21 Rheedea : 13 -22.