Floral ontogeny in Cordyla pinnata (A. rich.) Milne-Redh. (Leguminosae, papilionoideae): Away from stability
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2018
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Most representatives of the third largest angiosperm family, Leguminosae, share monosymmetric flowers with a precisely defined number and morphology of all parts especially the corolla. However, in some lineages monosymmetry is lost. This alteration is usually associated with an increase of variation in number of floral organs. This paper reports the results of a survey on floral ontogeny in African basal papilionoid legume Cordyla pinnata. The flowers of this tree are polysymmetric (except for the carpel, if single), having a completely closed calyx which typically initiates as three lobes, no corolla, a polymerous androecium, and a gynoecium which is sporadically multicarpellate. Cordyla exhibits some similarity of floral traits with swartzioid legumes (Swartzia p.p., Bocoa) rather than with its nearest phylogenetic surrounding. Some features of convergence between Cordyla and mimosoid legumes are also remarkable, such as a showy polymerous androecium and anther glands. This species ...is an example of an evolutionary trend towards destabilization of the flower structure. Supernumerary carpels seemingly lack any adaptive value and represent a kind of ontogenetic overexpression.
Ključne reči:
flower / ontogeny / Cordyla pinnata / monosymmetryIzvor:
Flora, 2018, 241, 8-15Izdavač:
- Elsevier
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FiVeRTY - JOUR AU - Sinjushin, Andrey PY - 2018 UR - http://fiver.ifvcns.rs/handle/123456789/3513 AB - Most representatives of the third largest angiosperm family, Leguminosae, share monosymmetric flowers with a precisely defined number and morphology of all parts especially the corolla. However, in some lineages monosymmetry is lost. This alteration is usually associated with an increase of variation in number of floral organs. This paper reports the results of a survey on floral ontogeny in African basal papilionoid legume Cordyla pinnata. The flowers of this tree are polysymmetric (except for the carpel, if single), having a completely closed calyx which typically initiates as three lobes, no corolla, a polymerous androecium, and a gynoecium which is sporadically multicarpellate. Cordyla exhibits some similarity of floral traits with swartzioid legumes (Swartzia p.p., Bocoa) rather than with its nearest phylogenetic surrounding. Some features of convergence between Cordyla and mimosoid legumes are also remarkable, such as a showy polymerous androecium and anther glands. This species is an example of an evolutionary trend towards destabilization of the flower structure. Supernumerary carpels seemingly lack any adaptive value and represent a kind of ontogenetic overexpression. PB - Elsevier T2 - Flora T1 - Floral ontogeny in Cordyla pinnata (A. rich.) Milne-Redh. (Leguminosae, papilionoideae): Away from stability EP - 15 SP - 8 VL - 241 DO - 10.1016/j.flora.2018.02.005 ER -
@article{ author = "Sinjushin, Andrey", year = "2018", abstract = "Most representatives of the third largest angiosperm family, Leguminosae, share monosymmetric flowers with a precisely defined number and morphology of all parts especially the corolla. However, in some lineages monosymmetry is lost. This alteration is usually associated with an increase of variation in number of floral organs. This paper reports the results of a survey on floral ontogeny in African basal papilionoid legume Cordyla pinnata. The flowers of this tree are polysymmetric (except for the carpel, if single), having a completely closed calyx which typically initiates as three lobes, no corolla, a polymerous androecium, and a gynoecium which is sporadically multicarpellate. Cordyla exhibits some similarity of floral traits with swartzioid legumes (Swartzia p.p., Bocoa) rather than with its nearest phylogenetic surrounding. Some features of convergence between Cordyla and mimosoid legumes are also remarkable, such as a showy polymerous androecium and anther glands. This species is an example of an evolutionary trend towards destabilization of the flower structure. Supernumerary carpels seemingly lack any adaptive value and represent a kind of ontogenetic overexpression.", publisher = "Elsevier", journal = "Flora", title = "Floral ontogeny in Cordyla pinnata (A. rich.) Milne-Redh. (Leguminosae, papilionoideae): Away from stability", pages = "15-8", volume = "241", doi = "10.1016/j.flora.2018.02.005" }
Sinjushin, A.. (2018). Floral ontogeny in Cordyla pinnata (A. rich.) Milne-Redh. (Leguminosae, papilionoideae): Away from stability. in Flora Elsevier., 241, 8-15. https://doi.org/10.1016/j.flora.2018.02.005
Sinjushin A. Floral ontogeny in Cordyla pinnata (A. rich.) Milne-Redh. (Leguminosae, papilionoideae): Away from stability. in Flora. 2018;241:8-15. doi:10.1016/j.flora.2018.02.005 .
Sinjushin, Andrey, "Floral ontogeny in Cordyla pinnata (A. rich.) Milne-Redh. (Leguminosae, papilionoideae): Away from stability" in Flora, 241 (2018):8-15, https://doi.org/10.1016/j.flora.2018.02.005 . .