Integrity Research Journals

Model: Open Access/Peer Reviewed
DOI: 10.31248/AJPB
Start Year: 2019

Morphology and anatomy of rhizome and root structures in seven Pteris L. species (Pteridaceae) from Southwestern Nigeria   |   Article Number: 7ED3339C1   |   Vol.4 (1) - February 2023

Received Date: 28 October 2021   |   Accepted Date: 01 December 2021  |   Published Date: 28 February 2023

Authors:  Rachael A. Bamigboye* , Fatai A. Oloyede and Helen I. Holmlund

Keywords: rhizome, Fern systematics, Pteridaceae, Pteris, root.

Morphological and anatomical structures of seven Pteris species from various locations in Southwestern Nigeria were examined. This study aimed to affirm the affinities and relevance of rhizome and root structures within the genus Pteris.  Mature healthy plants of each species were collected, and morphological observations of rhizomes and roots were documented for each species. The transverse sections of rhizomes were prepared by cutting at 10 µm thickness using Reichert Sliding Microtome while roots were embedded through standard procedures. The results showed that morphologically, rhizomes in P. acanthoneura, P. atrovirens, P. mildbraedii, P. togoensis and P. similis were erect to sub erect, but rhizomes were short creeping in P. ensiformis and P. vittata. The anatomy of the rhizomes showed a typical dictyostele pattern with variable number of leaf gaps, while roots of all the Pteris species were the diarch type with two xylem bundles alternating with two phloem bundles. The morphological and anatomical structures of the rhizomes and the roots provide useful specific distinctions of taxonomic importance for the genus Pteris and the family Pteridaceae.

Bercu, R. (2007). Variation in the anatomy of Asplenium trichomanes-ramosum L. Natural Motenegrina Podgorica, 6, 9-17.
Chang, C. Y. (1927). Origin and development of tissues in rhizome of Pteris aquilina. Botanical Gazette, 83(3), 288-306.
Christenhusz, M. J., & Chase, M. W. (2014). Trends and concepts in fern classification. Annals of Botany, 113(4), 571-594.
Deroin, T., & Rakotondrainibe, F. (2015). Comparative rhizome anatomy of some species of Ceradenia LE Bishop and Zygophlebia LE Bishop (Polypodiaceae, formerly Grammitidaceae) from Madagascar. Modern Phytomorphology, 7, 5-12.
Maroyi, A. (2017). Utilization of pteridophytes as herbal medicines in sub-saharan Africa. In Medicinal and Aromatic Plants of the World-Africa Volume 3 (pp. 383-408). Springer, Dordrecht.
Nopun, P., Traiperm, P., Boonkerd, T., & Jenjittikul, T. (2016). Systematic importance of rhizome stelar anatomy in selected Monilophytes from Thailand. Taiwania, 61(3), 175-184.
Oladipo, O. T., & Oyaniran, A. O. (2013). Taxonomic study of the wood anatomy of the genus Ocimum L. in Nigeria. Ife Journal of Science, 15(2), 295-302.
Pittermann, J., Watkins, J. E., Cary, K. L., Schuettpelz, E., Brodersen, C., Smith, A. R., & Baer, A. (2015). The structure and function of xylem in seed-free vascular plants: an evolutionary perspective. In: Functional and ecological xylem anatomy (pp. 1-37). Springer, Cham.
PPG I. (2016). A community‚Äźderived classification for extant lycophytes and ferns. Journal of Systematics and Evolution, 54(6), 563-603.
Rasheen, A. A. (1999) Ferns: Herbarium interns. New York botanical Garden. Retrieved 30th July, 2019 from
Roux, J. P., & Van Wyk, A. E. (2000). Morphology and anatomy of the rhizome and frond in the African species of Polystichum (Pteropsida: Dryopteridaceae). Bothalia, 30(1), 57-68.
Sathiyaraj, G., Muthukumar, T., & Ravindran, K. C. (2015). Ethnomedicinal importance of fern and fern allies traditionally used by tribal people of Palani Hills (Kodaikanal), Western Ghats, South India. Journal of Medicinal Herbs and Ethnomedicine, 1(1), 4-9.
Sharpes, J. M., Mehltreter, K., & Walker, L. R. (2010). Ecological importance of ferns. In: Mehltreter, K., Walker, L. R., & Sharpe, J. M. (eds.). Fern ecology. Cambridge University Press. Pp. 1-21.
Smith, A. R., Pryer, K. M., Schuettpelz, E., Korall, P., Schneider, H., & Wolf, P. G. (2006). A classification for extant ferns. Taxon, 55(3), 705-731.
USDA (2019). Fern structure. Retrieved from
Xue, J., Deng, Z., Huang, P., Huang, K., Benton, M. J., Cui, Y., Wang, D., Liu, J., Shen, B., Basinger, J. F., & Hao, S. (2016). Belowground rhizomes in paleosols: The hidden half of an Early Devonian vascular plant. Proceedings of the National Academy of Sciences, 113(34), 9451-9456.