The Gymnosperm Database


A plant about 1.5 m tall at Quail Botanical Garden, CA [C.J. Earle, 2004.04.06].


Foliage on the plant shown above [C.J. Earle, 2004.04.06].


Distribution of Dioon species (redrawn from Jones 1993).


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Dioon mejiae

Standley et L.O. Williams 1950

Common Names

Taxonomic notes


"This species, which resembles D. spinulosum in overall habit, differs from it in having smooth-edged leaflets ... though the petiole is spinous. It is also unique in the greenish-gray color and abruptly acuminate shape of the female cone, and in having ovules with a chalazal appendix (i.e., an outgrowth opposite the micropyle)" (Norstog and Nichols 1997).

Distribution and Ecology

Honduras: Department of Olancho: in a dry, rocky canyon, where first discovered; also in Nicaragua (Norstog and Nichols 1997).

Big tree





Named for "Dr. Isidoro Meijia, from whose garden the plant was first collected and described" (Norstog and Nichols 1997).

See also

De Luca, P. and S. Sabato. 1979. Nomenclature and taxonomy of Dioon meijiae Standley & Williams (Zamiaceae). Delpinoa, n.s., 20: 45-50.

Whitelock (2002).

Last Modified 2017-12-29