• Source: Nymphaea sect. Chamaenymphaea

    • Nymphaea sect. Chamaenymphaea is a section within the subgenus Nymphaea subg. Nymphaea of the genus Nymphaea native to North America, Asia, and Europe.


    Description




    = Vegetative characteristics

    =
    Its species have small, erect, cylindric, unbranched rhizomes lacking stolons. Both floating and submerged leaves are produced. The obovate to oval, glabrous, petiolate leaves with an entire margin have glabrous petioles with two primary air canals.


    = Generative characteristics

    =
    The small, 3–7.5 cm wide, white or rosy, flowers have peduncles with 4 primary air canals. The sepals are green. The 8–17 petals are white. The filaments are widest above the middle of the filament. The gynoecium consists of 5–12 carpels. The fruit bears smooth, ovoid, 2–3 mm long, and 1.5–2 mm wide seeds.


    Taxonomy


    It was first published as Nymphaea subsect. Chamaenymphaea Planch. by Jules Émile Planchon in 1853. It was then given a new status as Nymphaea sect. Chamaenymphaea (Planch.) Wiersema published by John Harry Wiersema in 1997. It is placed in the subgenus Nymphaea subg. Nymphaea.


    = Species

    =
    Nymphaea leibergii (Morong) Rydb.
    Nymphaea pygmaea (Salisb.) W.T.Aiton
    Nymphaea tetragona Georgi


    Distribution


    It occurs in North America, Asia, and Europe.


    References

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