----- Original Message -----
From:
a*@wp.pl
To: aroid-l@gizmoworks.com
Sent: Thursday, May 01, 2008 5:16
PM
Subject: Re: [Aroid-l] When is a rain
forest not a rain forest?
Seve,
You are right, in North America
there are no rainforests, only deciduous subtropical forest, in Panama or
Southern Mexico down throught Brazil and other Southamerican countries you can
find evergreen tropical rainforest, the same in Asia, down to
about 20 deg. of N latitude there are deciduous forests and where the
monsoon climate begins there equally start the rain forest. And of course it
also depends from the subclimate, when it's dry and cold of too hot, the
rainforest od not occur at all (like Sahara in Africa), the rainforest are
present only in the narrow area between the tropics, the equatorial
Africa.
Every continent except Europe (and
Antarctica :) ) has it's own belt of tropical rainforest. It is always
cut by the Ecuator, then there are deserts, priairies and similar dry bioms,
and as we go longer there are deciudous leaf-bearing (?) forest
gradually replaced by the coniferous evergreens taygah. Also rainforest
do do not occur in high mountains even when the latitude could allow them to
grow there.
----- Original Message -----
From:
S*@exoticrainforest.com
To: s*@exoticrainforest.com
Sent: Thursday, May 01, 2008 9:49
AM
Subject: [Aroid-l] When is a rain
forest not a rain forest?
Well, now I'm terribly confused! A note published on
the Aroid l last night from Leo Martin, director of the Cactus and Succulent
Society of America indicates Epiphyllum species are not rain forest
plants. But they live in rain forests. "Steve - They aren't rain forest plants. I've seen some of them in
Mexico. There are indeed cacti that are rain forest plants but
Epiphyllum in general aren't, with the possible exception of E.
chrysocardium. They are denizens of tropical deciduous forest. In
other words, 4 months of summer rain, 8 months of no rain (but with normal
nighttime dew.) Most (not all) of Mexico has this climate regime. I haven't
been to Central America but there's plenty of tropical deciduous forest
there too."
This dilemma appears to involve the definition of what is
and isn't a rain forest. I've read many times in Dr. Croat's material
these forests are known to have dry, moist and wet regions and I thought I
understood that. But now it appears I am left to consider plants that
live in the dry region not to be rain forest plants. I'm really
confused and obviously have a lot more to learn. But, I am
trying.
I spent a good deal of the night working Mr. Martin's note
into the page and am doing my best to not take a position. I am not an
expert and will not try to defend a position just because I don't understand
all the ramifications. But this one is rattling my mind!
Steve
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sprawdzona przez System Antywirusowy NOD32
http://www.nod32.com lub
http://www.nod32.pl
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