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  • Pyrenes 1–5, dorsally grooved, sides plane or eroded, excavated, or pitted. x = 17. North America, Mexico, Europe, Asia, n Africa, introduced in temperate
    21 KB (2,479 words) - 16:24, 9 December 2021
  • subfamily Maloideae (basic number x = 17), Oleaceae subfamily Oleoideae (x = 23), Salicaceae (x = 19), and Magnoliaceae (x = 19). The origin of these groups
    60 KB (8,674 words) - 23:32, 13 February 2019