John Robert Clark, Ph.D.

Botanist, Plant Systematist, Island Biogeographer, Scientific Illustrator

Research Gesneriaceae | Maps | Scientific Illustrations | Publications | Links


View pics of Cyrtandra

contact me

What's new:

GRC and Selby Gardens receive IMLS Grant

Announcing: World Gesneriad Research Conference 2010

Recently published: 

Clark, J.R. et al. 2009. Mol. Phylogenet. Evol.

Clark and Clark. 2008. Selbyana 29:147-151.

Clark and Clark. 2008. Selbyana 29: 152-156.  

Clark et al. 2008. Systematic Biology 57: 693-707.

My recent article in Gesneriads on the Interface Zone. 

The Gesneriad Research Center's blog.

Site last updated: 12 March 2010

A note about this site: I am currently in the process of migrating this website from Google Pages to Google Sites. Some links and pages may not be formatted correctly. I am working to update these as quickly as possible. I apologize for the mess...


Welcome to my website. I am a botanist, molecular systematist, and island biogeographer. My research is focused on the Pacific islands and in particular, the flowering plant family Gesneriaceae. Gesneriads are a diverse group of plants that includes African violets (Saintpaulia sp.). The family includes over 3000 species and range in size from small plants often used as houseplants to medium-sized trees. Gesneriaceae is an excellent model for exploring broad-scale questions about flowering plant evolution, distribution and diversification.

My current interests:

    * Molecular Systematics
    * Ancestral Range Reconstruction
    * Phylogenetic Comparative Methods
    * Phylogenetics-based Taxonomic Revisions
    * Gesneriaceae
    * Island Biogeography

My dissertation research was focused on Cyrtandra (Gesneriaceae), a large genus of ~600 species scattered across southeast Asia and the Pacific. I have explored various aspects of plant diversification and biogeography through studies of Cyrtandra. Currently, I continue this course of study as part of my new position, Director of the Gesneriad Research Center, at the Marie Selby Botanical Gardens in Sarasota, FL.

Feel free to browse this site to learn more about my research and interests. I have included links to pictures and other items of interest throughout.