Cabomba schwartzii
| Cabomba schwartzii | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Order: | Nymphaeales |
| Family: | Cabombaceae |
| Genus: | Cabomba |
| Species: | C. schwartzii
|
| Binomial name | |
| Cabomba schwartzii | |
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| |
| Cabomba schwartzii is endemic to North Brazil[1] | |
Cabomba schwartzii is a species of aquatic plant in the family Cabombaceae endemic to North Brazil.[1]
Description
[edit]Vegetative characteristics
[edit]Cabomba schwartzii is an aquatic herb.[2] The length of the stems depends on the water level.[3] The stems have two vascular bundles.[2] The elliptical or orbicular, peltate, petiolate floating leaves are 1.5—3.8 cm long, and 1.0—2.5 cm wide. The adaxial leaf surface is purple. The petiole is 1—3 cm long.[4]
Generative characteristics
[edit]The yellow flowers emerge above the water surface.[4] The 2-3 sepals are 6.0–8.0 mm long, and 2.5–3.0 mm wide. The 2-3 petals are 6.5–8.0 mm long, and 2.5–3.0 mm wide.[5] The androecium consists of 2,[4][6] 3, 4, 5, or 6 stamens.[5][2] The gynoecium consists of 1,[2][4][6] or 2 carpels.[7] The seeds are 1.5–2.2 mm long, and 1–1.2 mm wide.[2]
Taxonomy
[edit]Cabomba schwartzii Rataj was published by Karel Rataj in 1977.[4][1] It was then treated as a synonym of Cabomba aquatica Aubl. by Marian Ørgaard in 1991.[7][8] It was reestablished by Barbosa et al. in 2018.[5] The type specimen was collected by T. W. Schwartz in Igarapé do Aduja, Rio Itu, Rio Negro, Brazil.[4]
Ecology
[edit]Habitat
[edit]It occurs sympatrically with Cabomba furcata,[3] Nymphaea, Utricularia, and Mayaca.[9]
Pollination
[edit]Flies and bees visit the flowers of Cabomba schwartzii.[3]
References
[edit]- ^ a b c "Cabomba schwartzii Rataj". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 14 October 2024.
- ^ a b c d e Pellegrini, M.O.O. Cabombaceae in Flora e Funga do Brasil. Jardim Botânico do Rio de Janeiro. Available at:<https://floradobrasil.jbrj.gov.br/FB47484>. consulta.publica.uc.citacao.acesso.em15 Oct. 2024
- ^ a b c Barbosa, T. D., Costa, S. M., & Maria Do Carmo, E. (2019). Aquatic and Palustrine Angiosperms of Viruá National Park, Brazilian Amazon—Nymphaeales, Alismatales, Dioscoreales, and Arecales. Harvard papers in botany, 24(2), 103-117.
- ^ a b c d e f Rataj, K. (1977). Uma nova Cabomba do rio Negro, Amazonas, Brasil. Acta Amazonica, 7(1), 143-143.
- ^ a b c BARBOSA, T. D., TRAD, R. J., BAJAY, M. M., ZUCCHI, M. I., & DO AMARAL, M. D. C. E. (2018). Reestablishment of Cabomba schwartzii (Cabombaceae), an aquatic plant species endemic to the Brazilian Amazon. Phytotaxa, 367(3), 245-255.
- ^ a b Endress, P. K., & Doyle, J. A. (2015). Ancestral traits and specializations in the flowers of the basal grade of living angiosperms. Taxon, 64(6), 1093-1116.
- ^ a b Ørgaard, M. (1991). The genus Cabomba (Cabombaceae)–a taxonomic study. Nordic Journal of Botany, 11(2), 179-203.
- ^ Barbosa, T. D., Trad, R. J., Bajay, M. M., & Amaral, M. C. (2015). Microsatellite markers isolated from Cabomba aquatica sl (Cabombaceae) from an enriched genomic library. Applications in plant sciences, 3(11), 1500076.
- ^ Korthaus, E. (1986). Wasserpflanzen aus dem Stromgebiet des Rio Negro. Der Palmengarten, 50(1), 23-25.