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Re: Anyone had any experience with this wierd plant?

I corresponded w/ them on this:
Dear aquaticmagic,

Why do you sell this as an aquatic plant? It will die if kept under water!


They replied:
Hi!

It can live underwater no problem =)

Cheers!
 

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Re: Anyone had any experience with this wierd plant?

As far as my searching tells me...Plagiomnium Trichomanes is a bryopphyte with some (alleged) medicinal properties. It is harvested (in China or distributed from there) and it (or its extracts) are offered for sale world wide. I can find no specifics on exactly where it grows or its natural habitat. It has been quite frustrating, really. I plug in a word like Holotype and google says "Huh?".

The few reliable looking references generally wast to talk about the biochemistry and/or genetics of the plant and any background information is beyond reach as I'm not willing to subscribe ($$$), so all I can see are the abstracts.

I don't have the feeling that this particular species grows in North America though...
 

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Re: Anyone had any experience with this wierd plant?

I tried it - many of the same listings as before, but a new one or two including one thet lead me to the email address of a moss expert at the local botanical garden. I sent him a note asking about it.

:: crosses fingers ::
 

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Re: Anyone had any experience with this wierd plant?

Quick & interesting reply...

Hi,
Mosses are generally defined as terrestrial plants although some are said to be aquatic. For those growing in aquatic conditions, they are not really true aquatic in nature because at times they do expose to air during dry season. No mosses are growing in ocean or in lakes, ponds, etc. Most of the aquatic mosses are found in streams or sometimes fens where they are immersed most of the time. However, I have found my friends who grow a few mosses in aquaria with air pumps and under a good light condition. I asked them how long the mosses have been in water and they said a couple of years had past. So, I guess it is possible to grow mosses in an aquarium, but I doubt they can survive for an extensive time, to say five or ten years. Anyway, it all depends on the condition of an aquarium.
It is hard to identify the moss you showed to me. It looks like a Plagiomnium species. For the name Plagiomnium trichomanes, it has been synonymized with P. acutum. So, its distribution is much wider now than it was previously reported from China and Japan as P. trichomanes.
Hope this is of some help to your inquiry.
So, it's a definite "maybe" in my book - and P. acutum



(which seems to look a lot like P. cuspidatum^).

I guess you just have to try it... I can also see a ton of room for errors in properly identifying these as you probably need a microscope, spores a good key and expertise to do it with any certainty.
 

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Re: Anyone had any experience with this wierd plant?

Aaron - Thanks for posting your input!

More from Aquaticmagic (I asked what, if any, special requirements the plant had)-
Hi!
It prefer medium to highlight. Water temperature not critical and less demanding than moss. Water parameter is not defined yet for this plant.
This plant is something very new to hobbist =)
Cheers!
Mike
So, I'm thinking my new moss expert friend is probably right when he implies that YMMV with all of these "occasionally semi-aquatic" species and that P. trichomanes, a.k.a. P. acutum, has distinct immersed & emersed growth forms (like Marselia species etc.). I'd also feel pretty comfortable guessing that both pictures just above are of the immersed form(s). I think I may have to get some of this stuff at some point down the road (but getting some ground cover is a higher priority for me now).
 

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^post - they're listing another, weeping species too.

Well, Ive had this plant in my tank for quite some time and its growing and doing fine. You will find that most mosses will live and grow underwater as they have evolved to living submerged at least seasonally in their natural habitat. If you provide enough light & additional co2 in your tank, this helps.
Varig8 - have you ever thought about offering any for sale here (or via your store)?
 

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Please do post at least a current pic.
 
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