Astrocaryum acanthopodium Barbosa Rodrigues 1875

1. Astrocaryum acanthopodium Barbosa Rodrigues (1875: 20). Type:— BRAZIL. [Pará state]: in altis montibus ad fluvium Trombetas, s.d., Barbosa Rodrigues (“Barb. Rod.hb. Palm. n. 350”—probably destroyed). Neotype [designated by Wessels Boer (1965: 135) as “lectotype”, here corrected]:—Illustration in Barbosa Rodrigues (1903b: Tab. 76B). = Astrocaryum paramaca Martius (1844: 88). Notes:— Barbosa Rodrigues (1875) described Astrocaryum acanthopodium from a specimen he collected on the Trombetas River, in Pará State, Brazil. Based on substantial historical data, the specimen was deposited in the Museu Botânico do Amazonas herbarium but later destroyed after the museum closed (Porto 1892, Prance 1971, Mori & Ferreira 1987). Isotypes of the material were not found, and the protologue does not cite any other original material. However, a few years after the species was published, Barbosa Rodrigues (1903b) published an illustration of the taxon (Fig. 1), which was initially designated as “ lectotype ” by Wessels Boer (1965). Here, we recognize this illustration as a neotype, in accordance with Art. 9.8 and 9.10 of Turland et al. (2018). Currently, the species is considered a synonym of Astrocaryum paramaca, according to Kahn & Millan (1992), Henderson et al. (1995), and POWO (2024).