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Brittonia

, Volume 45, Issue 1, pp 1–16 | Cite as

The Zamiaceae in Panama with comments on phytogeography and species relationships

  • Dennis Wm. Stevenson
Article

Abstract

A key to, and descriptions of, the eleven species ofZamia in Panama are presented. Four of these are new species:Z. cunaria, Z. dressleri, Z. ipetiensis, andZ. neurophyllidia. Floristically,Zamia, is represented in Panama by three elements: three Central American species,Z. acuminata, Z. fairchildiana, andZ. skinneri, which reach their southern limits in central Panama; three northern South American species,Z. chigua, Z. manicata, andZ. obliqua, which reach their northern limits in Panama; and five endemic Panamanian species,Z. cunaria, Z. dressleri, Z. ipetiensis, Z. neurophyllidia, andZ. pseudoparasitica. These distributions are interpreted by a consideration of sister group relationships based upon derived morphological character states.

Key words

Panama Zamiaceae Zamia 

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Copyright information

© the New York Botanical Garden 1993

Authors and Affiliations

  • Dennis Wm. Stevenson
    • 1
  1. 1.New York Botanical GardenBronxU.S.A.

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