My friend Ellen Hornig (owner of Seneca Hill Perennials) in NY recently spent 2 weeks botanizing in South Africa--she has posted pictures and commentary on her website--quite tantalizing.
In her introduction, she has this to say:
"During this trip I traveled with Cameron McMaster, the seemingly tireless co-owner (with wife Rhoda) of African Bulbs, renowned expert on the Dohne sheep and consultant to sheep farmers all over South Africa, tour guide extraordinaire, and first-rate self-taught botanist, ornithologist and lepidopterist; with John Manning, research scientist at Kirstenbosch National Botanical Garden, author of twelve books and numerous articles and contributions, and accomplished photographer and illustrator; and, for the second half of the trip, Dawie Human, owner of Lifestyle Seeds. Needless to say, this was a humbling and extarordinarily educational experience."
Do take a look at:
http://www.senecahillperennials.com/index.php?page=introduction