Hygrophila sp. 'Guinea' stinks! - Page 2 - Plant Physiology & Emersed Culture

Tex Gal · 06-22-2009, 08:21 PM

What a gigantic difference in the two forms! I hope you can put the px of the emersed form in the plantfinder. I just can never get over the difference in the look of the emersed and submerged forms.

Cavan Allen · 06-22-2009, 08:27 PM

Oh yes, it will be in there.

rich815 · 06-22-2009, 08:34 PM

Quote:

Originally Posted by Tex Gal

What a gigantic difference in the two forms! I hope you can put the px of the emersed form in the plantfinder. I just can never get over the difference in the look of the emersed and submerged forms.

Is there another name for this plant? I do not see it in the Plant Finder.

Cavan Allen · 06-22-2009, 08:35 PM

It's not in there yet, but it will be.

rich815 · 06-22-2009, 08:39 PM

I simply adore this plant. It's leaves represent a style I wanted for a corner background of my 72 gal but all other plants like this have been MUCH too fast growers. I now have two nice plants, sort of growing semi-sideways in the current, which are sending up side shoots to make a nice wall of these leaves (seen in the guitarfish link). As nice steady but moderate-paced grower not needing weekly trimming! I love it.

hydrophyte · 06-22-2009, 08:41 PM

Quote:

Originally Posted by Cavan Allen

Nice photo!

Do you mean the angustifoliate form of H. corymbosa, or actual angustifolia? If the latter, I'd like to talk to you!

Come to think of it, I do remember one of our GWAPA members bringing in some foul-smelling corymbosa one time, even though it has never smelled like that emersed for me (but does sometimes suffer from a mysterious condition that looks like large grains of salt embedded in the leaves).

Oh I don't know. Is the real angustifolia a rare plant? If that is the case then I probably just have that angustifoliate corymbosa.

It only started to stink after growing to a larger size and up into the bright light. It became more wooly and sticky with resin too as it grew.

Underwater it is a very nice plant. It has such long leaves and tight internodes that it doesn't even look like a stem plant, more like a very tidy and bright green val, or at least that's how it grows in my tank. It needs no extra CO2 and gets along in the shade of other plants.

Cavan Allen · 06-23-2009, 02:53 PM

H. angustifolia is kept by Australian aquarists, but I'm not sure if we have it or not. Some of the photos I've seen share a strong resemblance to the 'Sarawak', but I'm still looking into that. Known H. angustifolia would be welcome for comparison.

Interestingly, there is also a H. angusta, which may be the plant we now know as....

ingg · 06-24-2009, 05:00 PM

The hygro "Bihar" does a similar leaf transformation, it was pretty neat to watch it go submersed.

To an earlier poster, if you are looking for slow growth, "guinea" is your friend.... this is growing even slower than Araguaia for me, which I thought was the slowest plant ever... until I got a stem of guinea!

miremonster · 06-25-2009, 09:40 AM

Hi Cavan,
that's great - I believe i've got the same stinking Hygro species here! Obtained years ago in the nursery Hans Barth, Dessau (Germany) as an unidentified Hygro from Africa. It's growing emersed and has flowered in the Botan. garden of Göttingen. The flowers are bigger than those of H. corymbosa. Hans-Georg Kramer (Wedel near Hamburg) has grown it submersed, where it looks the same as in photos of H. sp. 'Guinea' in the www. I've sent living stalks and photos of flowers to Dr. Josef Bogner (Munich), he already told me which species it may be, but I don't find again my note..
I'll post photos of flowers and try to make specimens if it's flowering again.

miremonster · 06-25-2009, 09:56 AM

Quote:

Originally Posted by ingg

The hygro "Bihar" does a similar leaf transformation, it was pretty neat to watch it go submersed.

Do You have emersed and flowering plants of 'Bihar'? An ID may be possible, e.g. with Cook (1996) Aquatic and wetland plants of India.