geophytic and non-geophytic bulbs;

Jim McKenney
Mon, 20 Jun 2005 12:26:04 PDT
Alberto wrote: " Interestingly in many areas of South America that are
dryish and hot very many plants look "bulbous" but they aren't. It is an
adaptation to periodical fires and most (if not all) are woody and carrot
like. In other words, a tree or shrub of small size completely buried in the
ground and from which only the soft green parts emerge. This organs are
xylopodiums but not bulbs, corms and tubers. More like caudiciforms."

Excellent! And I really like that word xylopodium  - sounds like a euphemism
for the prosthetic devices used for amputees after the American Civil War
(xylopodium literally says "wooden foot"). 

But I would say that although these plants are not bulbs, they are

And while we are at it, would someone like to stick their neck out and
categorize the structure from which Achimenes grow? Be forewarned: no matter
how you answer, I'll probably have something to say about it! And no
cheating by making up some concoction such as "strobiliform rhizomes". 

Jim McKenney

More information about the pbs mailing list