Genus Riella in Family Riellaceae
What is a Genus (pl. Genera)?
In botanical taxonomy, a genus (plural genera) is a rank used to group closely related species within a family. In the hierarchy, genus sits below family and above species.
Genera are defined by shared morphological, anatomical, and genetic characteristics (for example, features of flowers, fruits, seeds, or leaves) that indicate a close evolutionary relationship among the species they contain.
Each genus can include one or more species. Examples include Rosa (roses) and Solanum (nightshades, including tomato and eggplant).
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Pick a Species to see its components:
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Riella affinis (M.Howe & Underw.)
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Riella alatospora (Wigglesw.)
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Riella americana (M.Howe & Underw.)
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Riella battandieri (Trab.)
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Riella bialata (Trab.)
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Riella capensis (Cavers)
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Riella choconensis (Hässel de Menéndez)
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Riella cossoniana (Trab.)
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Riella cyrenaica (Maire)
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Riella echinata ((Müll.Frib.) Segarra, Puche & Sabovlj.)
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Riella echinospora (Wigglesw.)
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Riella gallica (Balansa ex Trab.)
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Riella gamundiae (Hässel)
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Riella halophila (Banwell)
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Riella helicophylla (Bory & Mont.)
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Riella heliospora (Segarra, Puche & Sabovlj.)
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Riella indica (Steph. ex Kashyap)
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Riella macrocarpa ((P.Allorge) Puche, Segarra, Sabovlj., M.Infante & Heras)
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Riella mediterranea (Segarra, Puche, Sabovlj., M.Infante & Heras)
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Riella notarisii ((Mont.) Mont.)
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Riella numidica (Trab.)
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Riella pampae (Hässel de Menéndez)
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Riella parisii (Gottsche)
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Riella purpureospora (Wigglesw.)
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Riella reuteri (Mont.)
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Riella sersuensis (Trab.)
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Riella spiculata (J.Taylor)
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Riella trigonospora (Segarra & Puche)
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Riella undulata (Hässel de Menéndez)