Description
Vegetative characteristics
''Nymphaea potamophila'' is an aquatic herb. The elliptic-sagittate, papery leaf blades of floating leaves are up to 20 cm long and 10 cm wide. The leaf margin is entire and flat. The adaxial surface is coloured in green with overlaying patterns of red variegation. The abaxial surface has a greenish base colour accompanied by dark red variegation, but also exhibits patterns of branched, rusty-brown striations. The leaf structure is compact and the leaves are very thin (145.50 μm). This gives the leaves cold tolerance.Yang, K. (2022)Generative characteristics
The nocturnal floating flowers are connected to glabrous, 4 mm wide peduncles, which can exceed 4 m in length.Cytology
The chloroplast genome size is 159,232 bp.Sun, C., Chen, F., Teng, N., Xu, Y., & Dai, Z. (2021)Reproduction
Vegetative reproduction
Proliferating pseudanthia are not formed in this species.Jardim Botânico do Rio de Janeiro. (n.d.). ''Nymphaea potamophila'' Wiersema. Flora E Funga Do Brasil. Retrieved November 8, 2023, from https://floradobrasil.jbrj.gov.br/consulta/ficha.html?idDadosListaBrasil=86095Generative reproduction
High levels of both pollen viability and seed production are evident in ''Nymphaea potamophila''. Sexual reproduction plays a significant role in this species.Habitat
It can be found in the aquatic habitats of the Amazon Rainforest, where it can grow along river margins in up to 4-5 m deep water.Wiersema, J. H. (1987). A monograph of ''Nymphaea'' subgenus ''Hydrocallis'' (Nymphaeaceae). Systematic Botany Monographs, 1-112.Taxonomy
Type specimen
The type specimen was collected in Brazil by a team of scientists consisting of J. Ramos, C.D. Mota, L.A. Maia, and E. Soares on the 28th of June 1979.''Nymphaea potamophila'' , International Plant Names Index. (n.d.). Retrieved November 9, 2023, from https://www.ipni.org/n/281440-2Placement within ''Nymphaea''
It is placed in ''Nymphaea'' subg. ''Hydrocallis''.Conservation
The conservation status of this species in Brazil has not yet been evaluated.References
{{Taxonbar, from=Q15481725