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Key to Amaryllidaceae

Amaryllidaceae

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(c) Fleming, Gary P.
(c) Ward, Scott G
1 Corona present (a fused tubular or flattened petaloid structure in the center of the flower, above the tepals).
(c) Griffith, Floyd A.
(c) Ward, Scott G
  2 Filaments fused with the corona; corona very membranous in texture, distinctly thinner than the tepals; flowers white; [native, of riverine or tidal shores and marshes]; [tribe Hymenocallideae, subtribe Hymenocallidinae]
(c) Folini, Franco - CC-BY
(c) Fleming, Gary P.
  2 Filaments not fused with the corona; corona membranous in texture, but similar to the tepals (in texture, though sometimes of a different color); flowers usually at least partly yellow or orange (sometimes purely white); [exotic, naturalized in primarily upland and disturbed habitats]; [tribe Narcisseae, subtribe Narcissinae]
(c) Campos, Aidan
1 Corona absent.
(c) Fleming, Gary P.
(c) Woodward, Terry - CC-BY
    3 Flowers red; stamens about 2-2.5× as long as the tepals; [tribe Lycoridae]
    3 Flowers white, yellow, copper, or white-pink; stamens shorter than or about as long as the tepals.
(c) Northcut - CC-BY
      4 Flowers yellow to copper.
(c) Campos, Aidan
(c) Campos, Aidan
        5 Tepals apiculate at the tip, especially the outer 3 tepals; scape hollow; [tribe Hippeastreae, subtribe Zephyranthinae]
(c) Northcut - CC-BY
        5 Tepals rounded at the tip; scape solid; [tribe Narcisseae, subtribe Narcissinae]
(c) Marcum, Paul
      4 Flowers white or white-pink.
(c) Marcum, Paul
(c) Nesterova, Svetlana - CC-BY-NC, permission granted to NCBG
(c) Fleming, Gary P.
          6 Tepals 0.4-2.5 cm long, white, with small green or yellow spots; [tribe Galantheae].
(c) Ware, Richard & Teresa - CC-BY-NC, permission granted to NCBG
             7 Inner 3 tepals distinctly shorter and blunter than the outer 3 tepals, only the inner 3 with a green spot near the tip
(c) Nesterova, Svetlana - CC-BY-NC, permission granted to NCBG
(c) Fleming, Gary P.
             7 Inner 3 tepals and outer 3 tepals of similar size and shape, all 6 white with a green spot near the tip
          6 Tepals 3-16 cm long, white, white-pink, or pink.
(c) Richman, Mark - CC-BY
(c) Ward, Scott G
               8 Tepals spreading, separate, the perianth rotate; inflorescence a several-flowered umbel terminating the stem; leaves arranged spirally; leaf margins finely toothed; [tribe Amaryllideae, subtribe Crininae]
(c) Cressler, Alan M.
               8 Tepals ascending, overlapping, the perianth tubular; inflorescence either of a single flower or a several-flowered umbel terminating the stem; leaves either arranged distichously or spirally; leaf margins smooth
(c) Fleming, Gary P.
                 9 Inflorescence a several-flowered umbel terminating the stem; leaves arranged spirally; [tribe Lycoridae]
(c) Gapp, Wes - CC-BY
(c) Matt - CC-BY-NC, permission granted to NCBG
(c) Diamond, Alvin - CC-BY-NC, permission granted to NCBG
                 9 inflorescence of a single flower; leaves arranged distichously; [tribe Hippeastreae, subtribe Zephyranthinae]