Keywords
Bellis
Asteraceae
fruit surface
micromorphology
Libya
Asteraceae
fruit surface
micromorphology
Libya
Abstract
In this study, the cypsela surfaces of three taxa belonging to the genus Bellis L. were investigated in details by means of electron microscopy. The main aim of this study was to characterize the microsculpture of cypsela surface of the Libyan taxa of Bellis. (Asteraceae). Detailed descriptions of cypsela surface were given for each taxon. The results indicated that the examined taxa had very high variations regarding their cypselae surfaces and these variations have great importance in determining the taxonomic relationships of the discussed taxa. Based on the results, pericarp texture and color could be used for taxonomical diagnosis. The fruit coat was usually roguish and its ornamentation was fairly variable; therefore, this taxonomical microcharacter might also be useful in distinguishing closely related taxa. The hairiness of the surface of the pericarp was characteristic in the studied taxa.
References
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Talukdar T & Mukherjee SK (2008). Comparative study of cypselae in three common species of Asteraceae. Pleione 2(1): 147–149.
Talukdar, T. and Mukherjee, S.K. (2014). Cypselae diversity in four species of Senecio L. (Asteraceae). Bangladesh j. plant Taxon., 21, 13-17.
Abid, R., Qaiser, M., (2009). Taxonomic significance of the cypsela morphology in the tribe Anthemideae (Asteraceae) from Pakistan and Kashmir. Pakistan Journal of Botany 41, 555-579.
Akcin, T. A., Akcin, A., (2010). Morphological and anatomical characteristics and taxonomical significance of achene micromorphology of endemic Achillea phrygia Boiss& Bal. and A. gypsicola Hub-Mor. (Asteraceae) in Turkey. Nordic Journal of Botany 28, 65-73.
Akcin, T. A., Akcin, A., (2014). Achene micromorphology of seven taxa of Achillea L. (Asteraceae) from Turkey. Bangladesh Journal of Plant Taxonomy 21, 19-25.
Anderberg AA (1991). Taxonomy and phylogeny of the tribe Gnaphalieae (Asteraceae). Opera Botanica 104: 43.
Basak N and Mukherjee SK (2003). Taxonomic significance of cypselar features in some species of Vernonia (VernonieaeAsteraceae). Journal of Hill Research 16(1) 9-15.
Bremer K (1994). Asteraceae: cladistics and classification. Nordic Journal of Botany 14: 462.
Faruk, K., (2020). Morphology, anatomy, palynology and achene micromorphology of Bellis L. (Asteraceae) species from Turkey. Acta Bot. Croat. 79(1),59-67.
Frangiote-Pallone, S., De Souza, L.A., (2014). Pappus and cypsela ontogeny in Asteraceae: Structural considerations of the tribal category. Revista Mexicana de Biodiversidad 85, 62–77.
Garg, S.K., Sharma, K. C., (2007). Taxonomical significance of the morphological and scanning electron microscopic surface patterns of cypselas in some members of the tribe Heliantheae (Asteraceae). Feddes Repertorium 118, 165-191.
Ghimirea B., Suha, G.Leea, Kweon Heob and MiJinJeong (2018). Cypsela morphology of Cirsium species (Asteraceae) and its taxonomic implications. Flora 249,40-52.
Karaismailoglu, M. C. (2015). Morphological and anatomical features of cypsela of some Crepis taxa (Asteraceae) from Turkey and their taxonomic importance. Pakistan Journal of Botany, 47(4), 1473–1480
Koul, K., Ranjna, N. and Raina, S.N. (2000). Seed coat microsculpturing in Brassica and allied genera subtribes Brassicinae, Raphaninae, Moricandiinae). Ann. Bot., 86: 85-97
Mabel, A. F., Johnson, A. A., Olufemi, O.-O., & Ayomipo, A.-A. T. (2014).
Foliar anatomy of some species of Asteraceae in South Western Nige-ria. African Journal of Plant Science, 8(9), 426–440.
Marzinek J, De-Paula OC, Oliveira DMT (2008). Cypsela or achene Refining terminology by considering anatomical and historical factors. Revista Brasileira de Botanica 31: 549-553.
Moreira, G. L., Cavalcanti, T. B., Mendonça, C. B. F., & Gonçalves- Esteves, V. (2019). Pollen morphology of Brazilian species of Ver-besina L. (Heliantheae-As teraceae). Acta Botanica Brasilica(AHEAD), 33,128–134.
Roque N, Funk V (2013). Morphological characters add support for some members of the basal grade of Asteraceae. Botanical Journal of the Linnean Society 171, 568–586.
Sennikov, A.N., Soltis, D.E., Mabberley, D.J., Byng, J.W., Fay, M.F., Christenhusz, M. J., Group, T. A. P. (2016). An update of the angiosperm phylogeny group classification for the orders and families of flowering plants: APG IV. Botanical Journal of the Linnean Society181(1), 1–20
Stearn W.T. 1992: Botanical Latin. 4th edition. David & Charles Publishers, London, pp. 489–491.
Talukdar T & Mukherjee SK (2008). Comparative study of cypselae in three common species of Asteraceae. Pleione 2(1): 147–149.
Talukdar, T. and Mukherjee, S.K. (2014). Cypselae diversity in four species of Senecio L. (Asteraceae). Bangladesh j. plant Taxon., 21, 13-17.