Susan, I finally had a talk with my friend. I was a bit wrong. It's a Dorstenia. He has one that looks similar and it's D. hildebrandtii, but I'm not sure if this is yours. Maybe try searching images of Dorstenia.
http://images.google.com/imgres?imgurl=http://www.plantbiology.northwestern.edu/Zerega/Dorstenia.JPG&imgrefurl=http://www.plantbiology.northwestern.edu/Zerega/zerega1.html&usg=__NhdYt9PpMyAfQmZLuF82YI6G_FM=&h=693&w=653&sz=191&hl=en&start=0&zoom=1&tbnid=3fuuCh8uuyTW-M:&tbnh=171&tbnw=167&ei=n-MVTr63BOrmsQLn8IhT&prev=/search%3Fq%3Ddorstenia%2Bhildebrandtii%26hl%3Den%26gbv%3D2%26biw%3D1276%26bih%3D680%26tbm%3Disch&itbs=1&iact=hc&vpx=623&vpy=125&dur=616&hovh=231&hovw=218&tx=83&ty=143&page=1&ndsp=17&ved=1t:429,r:3,s:0
Yes, you are. However this week I've been working in a different area of the park all week, which is unusual. Next week I'm back in my area and should have an answer. Please try me again next week.
I know these Susan. We grow them in the greenhouse at my work. The name is escaping me right now though. If no one ID's them by Monday, I will check at work and get back to you.
Comments (13)