Nymphaea potamophila

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Nymphaea potamophila
Preserved herbarium specimen of Nymphaea potamophila Wiersema in the collection of the Royal Botanic Gardens, Kew
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Order: Nymphaeales
Family: Nymphaeaceae
Genus: Nymphaea
Subgenus: Nymphaea subg. Hydrocallis
Species:
N. potamophila
Binomial name
Nymphaea potamophila
Wiersema[1]
It is native to Venezuela and northern Brazil[1]

Nymphaea potamophila is a species of waterlily native to the region spanning from Venezuela to northern Brazil.[1] Additionally, it has been reported to occur in Colombia.[2][3]

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.[4] The leaf margin is entire and flat.[5] 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.[4] The leaf structure is compact and the leaves are very thin (145.50 μm). This gives the leaves cold tolerance.[6] The glabrous, 3 mm wide petioles are very long and can exceed 4 m in length.[4]

Generative characteristics

The nocturnal floating flowers are connected to glabrous, 4 mm wide peduncles, which can exceed 4 m in length.[4][7]

Cytology

The chloroplast genome size is 159,232 bp.[8] The chromosome count is unknown.[7]

Reproduction

Vegetative reproduction

Proliferating pseudanthia are not formed in this species.[5][7]

Generative reproduction

High levels of both pollen viability and seed production are evident in Nymphaea potamophila. Sexual reproduction plays a significant role in this species.[4][7]

Habitat

It can be found in the aquatic habitats of the Amazon Rainforest,[5] where it can grow along river margins in up to 4-5 m deep water.[7][4]

Taxonomy

Conservation

References

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