Iris Cohen schreef
How about Trees of Southern Africa by Palgrave?

***
Touché! Point to you.

Not that you would recognise a tree from reading their description of
Welwitschia mirabilis. Maybe they just wanted an excuse to include this
oddity.
*****

And another book of the same name by Palmer & Pitman. The reason you don't
often see it descibed in serious botanical books is that once the botanist
starts writing about it, he can't stop laughing.

***
Actually Welwitschia is in lots of botany books, but never* described as a
tree. Reading a description of Welwitschia by a German botanist I don't
sense any laughter (with the author), but only a yawn (rising within
myself).
PvR

* Excepting the mentioned books