[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[APD] Re: Local Riccia
auntie_fran at netzero.net wrote:
Oh, one more thing: I'm from St. Louis, MO and transplanted to just north of Seattle, WA.
There are plants that are treated as annuals in the midwest that
so I wouldn't necessarily use a WA list to determine what is invasive
Just my beginner's HO.
I never meant to imply that by being from most places around the world
that it was "invasive", just that according to what I've read that IT
WAS/IS FROM MOST PLACES AROUND THE WORLD. Let me elaborate.
If you look at almost any listing of riccia on the net, Tropica for
example (http://www.tropica.dk/productcard_1.asp?id=001) you'll notice
it lists it's region as "cosmopolitian" which it defines by saying "the
plant can be found throughout most of the world. From the tropics to
And while I'm at it... here's another more informative source I found...
In the first few paragraphs the author states that "this plant can be
found almost worldwide in the wild" and a little more relevant to our
conversation "The temperature can vary between 15 degrees C to 30
Which may give credence to the theory that it was introduced.
But how does the plant reproduce? just by growing?
Or does it have spores or something?
I haven't yet found anything much beyond on how to attach it to a rock
on the net.
Oh, but here's an interesting article on some species found in Turkey.
Ahhh.. apparently as stated in above article, at least some species if
not all riccia have spores. Could this not explain how they could
survive a harsh canadian winter?
Ah, this is interesting...
seems to be telling of a couple riccia species being found in Siberia.
Here's a link to an article of species local to Oregon:
Ah, the holy grail! A vegetation survey of the "BLACKFOOT PROVINCIAL
RECREATION AREA UPLANDS" (yes it lists Riccia Fluitans on page 45):
Aquatic-Plants mailing list
Aquatic-Plants at actwin_com