''Cabomba schwartzii'' is a species of aquatic plant in the family Cabombaceae endemic to North Brazil.
Description
Vegetative characteristics
''Cabomba schwartzii'' is an aquatic herb.
[Pellegrini, M.O.O. Cabombaceae in Flora e Funga do Brasil. Jardim Botânico do Rio de Janeiro. Available at:. consulta.publica.uc.citacao.acesso.em15 Oct. 2024] The length of the stems depends on the water level.
The stems have two vascular bundles.
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.
Generative characteristics
The yellow flowers emerge above the water surface.
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.
The androecium consists of 2,
3, 4, 5, or 6 stamens.
The gynoecium consists of 1,
[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. or 2 carpels.
The seeds are 1.5–2.2 mm long, and 1–1.2 mm wide.
Taxonomy
''Cabomba schwartzii'' Rataj was published by
Karel Rataj in 1977.
It was then treated as a synonym of ''
Cabomba aquatica
''Cabomba'' is a genus of perennial, rhizomatous, aquatic herbs in the family Cabombaceae native to tropical and subtropical America. It has divided submerged leaves in the shape of a fan (hence the vernacular name fanwort) and is much favoured ...
'' Aubl. by
Marian Ørgaard in 1991.
[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. It was reestablished by Barbosa et al. in 2018.
[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.
The type specimen was collected by T. W. Schwartz in Igarapé do Aduja, Rio Itu, Rio Negro, Brazil.
[Rataj, K. (1977)]
Uma nova ''Cabomba'' do rio Negro, Amazonas, Brasil.
Acta Amazonica, 7(1), 143-143.
Ecology
Habitat
It occurs
sympatrically with ''
Cabomba furcata'',
[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. ''
Nymphaea
''Nymphaea'' () is a genus of hardiness (plants), hardy and tender aquatic plants in the family Nymphaeaceae. The genus has a cosmopolitan distribution. Many species are cultivated as ornamental plants, and many cultivars have been bred. Some ta ...
'', ''
Utricularia
''Utricularia'', commonly and collectively called the bladderworts, is a genus of carnivorous plants consisting of approximately 233 species (precise counts differ based on classification opinions; a 2001 publication lists 215 species).Salmon, B ...
'', and ''
Mayaca
''Mayaca'' is a genus of flowering plants, often placed in its own family, the Mayacaceae (or Mayaceae in earlier systems). In the APG II system of 2003, it is assigned to the order Poales in the clade commelinids. The Cronquist system, of 1981, ...
''.
[Korthaus, E. (1986)]
Wasserpflanzen aus dem Stromgebiet des Rio Negro.
Der Palmengarten, 50(1), 23-25.
Pollination
Flies and bees visit the flowers of ''Cabomba schwartzii''.
References
{{Taxonbar, from1=Q50839785
schwartzii
Plants described in 1977
Freshwater plants
Endemic flora of Brazil