Alberto S. Taylor

Zamia hamannii is a species of cycad in the family Zamiaceae. The only known population grows in a small area on an island on the northwestern Caribbean coast of Panama. Most plants of the species grow in forest, but some live on sandy beaches. It was named and described in 2008.

Zamia nesophila, common name "guade teet", is a species of cycad in the family Zamiaceae. It is endemic to several islands in northwestern Panama. Most plants grow on sandy beaches close to the sea, although some grow inland in forests. The species is critically endangered due to seaside development.

Zamia imperialis is a species of plant in the family Zamiaceae. The description is based on specimens found in Coclé Province, Panama. It is part of the Zamia skinneri species complex. Taylor B. et al. (2008) described Z. imperialis based on specimens from the type locality in Coclé Province, Panama. It was previously known as "red-leafed skinneri". Its common name is "cebolla".

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Zamia stevensonii (blanco) is a species of cycad in the family Zamiaceae. It is found in the vicinity of the Panama Canal and the Chagres River in central Panama. Z. stevensonii was described in 2012 by Taylor Blake & Holzman from plants that had previously been identified as variously belonging to Z. elegantissima, Z. fairchildiana, and Z. pseudomonticola. While Z. stevensonii and Z. elegantissima in particular are similar, the authors found sufficient differences in vegetative and reproductive structures and in pollinators to separate Z. stevensonii from the other three species. The

Zamia nana is a species of plant in the family Zamiaceae. It is found in Coclé Province in Panama.