Wildflowers in Botswana

I finally got a scanner so I can begin converting my extensive slide collection into digital pics, and here are the first results from my 1993 trip to Gaborone, Botswana and nearby areas. Here are four different flowers, the yellow hibiscus may be Cienfuegosia digitata, the purple creeper is Aptosimum elongatum, the yellow flower in the Kalahari sand is Bulbine (maybe B. abyssinica) and the orange red one is a Tricliceris (older generic name:Wormskioldia) longipenduculatum (or a closely related species). All of these are ornamental plants, and I have B. abyssinica in pots and have grown Tricliceras before. I have tried off and on to get the Aptosimum seeds to germinate thus far without success, I imagine they like heat and sun to do well. I'd really like to get it going, since it has stunning deep purple flowers. It was quite common right in Gaborone, along with Sanseveria aethiopica, an aAbuca species, Crinum lugarde (in wetter areas), Felicia mossambadensis, Talinum caffrum, Pterodiscus speciosus, Ipomaea bolusii, and a Portulaca species. Botswana has quite a few nice flowering plants, more of which I hope to scan and blog about later on.