epbb
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Posts: 13
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Post by epbb on Nov 7, 2013 16:08:34 GMT
This plant with long leaves is Marchantia sp. (polymorpha ?)
I have some growing outdoors among Pinguicula. I hate it as it has a capacity to expand an cover soils.
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coline
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Life's essence: patience
Posts: 484
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Post by coline on Dec 5, 2013 21:30:18 GMT
Well, no, I did not, I was so busy that even until today it was the first day I could come back to the post and reply.
And yes, it seems to be some Marchantia sp, it grows very bad in pots with small plants.
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Post by soniawild on Dec 6, 2013 15:16:13 GMT
Thanks for pics really nice!
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Post by Fernando Rivadavia on Jan 1, 2014 1:44:36 GMT
Thanks for sharing these great pics and info, this is definitely not an easy plant to spot in the field as it is rare and TINY!!
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coline
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Life's essence: patience
Posts: 484
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Post by coline on Dec 27, 2014 1:41:30 GMT
Well, some big time had passed since my last visit, and this year I had the opportunity on this month to go back to the site, this time I tried again and failed again to look for D. cayenensis (or capillaris..) on another site, but succeeded again to see P. crenatiloba on the site I have seen it. This time of the year, the dry season is just starting, so most areas have the ground dry, but plants are mostly still green: And as I expected, on this time of the year these plants make their flowers, and they look 5x bigger with them on their stalks: Even though, maybe because they had already flowered many stalks, only one crappy flower was on sight: Some things have changed from what I remember, I did not see the really big colonies I saw last time, but this time I saw a much more spread number of plants, and also what I really liked, that they were colonizing some recent fallen land place, with I think now is about a year or more old: And even more, I saw much more plants in all the area, scattered on the bare clay soil places where some Marchantia sp. lives. Even so, I see this plant is very antagonist to them, as it covers all the available land and does not let seed reach the soil nor grow normally. At this time of the year the sun is slightly down to the south, so all the soil they're on is fully shaded all day long, it feels to the touch as any well watered house plant soil, not damp and not kind of dry. So this is it, now all the parts of the plant may be seen here, the only Pingicula from my country!
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Post by ICPS-bob on Dec 27, 2014 17:49:50 GMT
It looks like most of the plants have mature or maturing seed pods. For some, it appears the seed pods have already opened and dispersed seeds. Do you think the main flowering season is in November with seed dispersal in December/January? It is interesting that the seed is being dispersed just as your dry season is beginning. I wonder what the flowering trigger is. It appears the day-length only varies by an hour during the year, and low and high temperatures are similar throughout the year. The main variable seems it be the amount of rain and number of rainy days.
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coline
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Life's essence: patience
Posts: 484
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Post by coline on Dec 28, 2014 4:37:04 GMT
In fact it is almost a 2 hour day shortening, since in summer we may get about 13 hours of sunlight countering 11 in winter, and even more for them, as they are in winter in full shade, only having direct sun for some 3 months a year when the sun is shining from the north. But indeed, rain seems to be the trigger, while in the caribean I have just had a full non stop rain during the whole december, and finally a dry week during christmass, the pacific side seems to have had a very big drought this year, and this area seems to have had dryness since november. From the last visit I had a couple of plants at home, and they set seeds, the seed fell to the soil, and remained there for some time, until it sprouted months later, didn't take the exact time they took before germinating, but it was quite a while. So as you say, they seem to be in full bloom in november, since in september they are small plants, then they grow and just a couple of months later they have the seed. They also have good prey capture as you may see on some pics.
Another factor of these months is that they have very strong wind conditions, all the open pods had no seed on them, so I think the plants rely on that to disperse around, the winds come from the east towards the west.
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