Warning: I have no idea what these plants look like so please
excuse if these are not the correct graphics.
===
Have you tried clipart sites?
> Pygeum africanus (African Prune) a plant reputed to be effective in
> prostrate troubles
>
I came up with a possible match at http://www.arttoday.com. I
used the search term "Pygeum +africanus" (without quotes). If you
don't already have a membership, you will need to apply (it's free).
My search was in the "free" members area. They may have more
matches in the pay area.
> Corynanthe Yohimbe (Yohimbe) a reputed aphrodisac
I didn't see anything specifically with this name.
Here's an interesting plant site that may be of help:
http://www.maigold.co.uk/more.htm
(The Paradise Centre link on this page didn't seem to have either of
these plants but it did have a few plant graphics)
Here's a botany site with lots of links.
http://www.helsinki.fi/kmus/bothort.html
If these don't work, here's a graphics ring with over 700 member
sites --> http://www.designheaven.com/GraphicsRing/
You may not want to take time browse through all the sites but I
have seen graphic sites with plant pictures before.
You may also want to try http://www.webring.org. Sometimes you
can find exactly what you are looking for here by searching the ring
lists.
--Brenda