Acanthoscyphus Acanthoscyphus Small in Bull. Torrey Bot. Club 25: 53. 1898 sec. Reveal 20051Type: Acanthoscyphus parishii (Parry) Small1. Reveal, J. L. 2005: Polygonaceae subfam. Eriogonoideae, pp. 218–478. – In: Flora of North America Editorial Committee, Flora of North America north of Mexico 5. – New York: Oxford University PressContent