Comparative flower morphology in Hippeastrum striatum (Lam.) H.E. Moore. (Amaryllidaceae)

Abstract

O. Fishchuk

We studied the structure of the flowers of the Hippeastrum striatum. The morphometric parameters, morphology, anatomy, and vascular anatomy of the ovary and the flower are generally described. We registered that the following structural zones are present in the Hippeastrum striatum gynoecium: synascidiate, symplicate, hemisymplicate, and implicate vertical zones. Septal nectaries appear in the symplicate zone and extend to the ovary's entire height, and have a height of about 3280 μm. The peduncle of H. striatum contains 26 large and small vascular bundles. The trace of the ovules is single-bundle. Traces of the inner tepals comprise 20 vascular bundles, traces of the outer tepals comprise 28 vascular bundles. Traces of stamens are single-bundle; it branch out from traces of tepals.

Keywords: Hippeastrum striatum, flower morphology, vertical zones, gynoecium, ovary
 

References

 

Almeida, N. V. de, Saziki, C.Y. N., & Cardoso, J. C. (2019). Characterization of cultivars and low-temperature pollen grain storage in amaryllis (Hippeastrum sp.) Revista Ceres, Viçosa, 66(6), 451459. doi:10.1590/0034-737x201966060006 

Andreychuk, R., & Odintsova, A. (2020). Actual state of carpological studies in the family Campanulaceae Juss. with regard to its systematics. Studia Biologica 14(2), 95–116. doi: 10.30970/sbi.1402.616

Azimi, M. H., & Alavijeh M. K. (2020). Morphological traits and genetic parameters of Hippeastrum hybridum. Ornamental Horticulture, 26(4), 579–590. doi: 10.1590/2447-536X.v26i3.2153

Barykina, R. P., Veselova, T. D., Deviatov, A. G., Djalilova, H. H., Iljina, G. M., & Chubatova, N. V. (2004). Spravochnik po botanicheskoy mikrotehnike. Osnovyi i metodyi [Handbook of the botanical microtechniques]. Izdatelstvo Moskovskogo universiteta, Moscow (in Russian).

Chase, M. W., Christenhusz, M. J. M., Fay, M. F., Byng, J. W., Judd, W. S., Soltis, D. E., Mabberley, D. J., Sennikov, A. N., Soltis, P. S., & Stevens, P. F. (2016). The angiosperm phylogeny group. An update of the angiosperm phylogeny group classification for the orders and families of flowering plants APG IV. Botanical Journal of the Linnean Society, 181, 1–20. doi:10.1111/boj.12385

Chase, M. W., Reveal, J. L., & Fay, M. F. (2009). A subfamilial classification for the expanded asparagalean families Amaryllidaceae, Asparagaceae and Xanthorrhoeaceae. Botanical Journal of the Linnean Society, 161(2), 132–136. doi:10.1111/j.1095-8339.2009.00999.x

Daumann, E. (1970). Das Blütennektarium der Monocotyledonen unter besonderer Berücksichtigung seiner systematischen und phylogenetischen. Bedeutung Feddes Repertorium, 80(7-8), 463–590.

Fishchuk, O., Odintsova, A., & Sulborska, A. (2014). Gynoecium structure in Dracaena fragrans (L.) Ker Gawl., Sansevieria parva N.E. Brown and Sansevieria trifasciata Prain (Asparagaceae) with septal emphasis on the structure of the septal nectary. Acta Agrobotanica, 66(4), 55–64. doi:10.5586/aa.2013.051

García, N., Meerow, A. W., Arroyo

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