Abstract
A new species ofDioon (Dioon holmgrenii), found on the Pacific slope of southern Oa xaca, is characterized by leaflets which are spinulose especially on the upper margin, elongate and narrow. Distribution and ecology of OaxacanDioon species are reported.
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De Luca, P., Sabato, S. & Torres, M.V. Dioon holmgrenii (Zamiaceae), a new species from Mexico. Brittonia 33, 552–555 (1981). https://doi.org/10.2307/2806763
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DOI: https://doi.org/10.2307/2806763