Re: [aroid-l] Aquatic Homalomena species (Aroids as sumerged aquatics?)

From: "Julius Boos" <ju-bo at msn.com> on 2004.08.22 at 15:33:55(12036) >From: "Peter Boyce" >Reply-To: aroid-l@lists.ncsu.edu >To: >Subject: Re: [aroid-l] Aquatic Homalomena species (Aroids as sumerged aquatics?) >Date: Sun, 22 Aug 2004 10:49:31 +0800 > Dear Friends, And yet another' rider' to Pete and Alistair`s notes---if we take the time to read my 'oldish' article 'Experiencing Urospathas", published in Aroideana some years ago. I believe it gives THE perfect way to grow these types of plants, and Pete is correct, the flushing of their pots/soil and the changing of the water that the pots stand in are absoloutly essential to growing them to their full potential. Also, the potting method which I explain in my article which consists of using some larger-type of medium (1"-2" 'larva rock'?) in the bottom 3" of the pot so as to prevent any of the soil medium from being submerged, keeping the 'soil' medium ABOVE the level of the water in their saucers or trays, is essential IF you want them to survive long term, and I believe this is the aim of most growers. I personally do not use much perlite in the mix ( I prefer using coarse sand/fine gravel) as I THINK Urospathas and Cyrtospermas! develop an aversion to it, maybe because of the changing seasons/temps here in Florida, but I may not be correct in this conclusion. In closing, apart from the Crypts and a few Anubias sps., I don`t think most of the plants that we have been discussing real 'like' being grown completely underwater, if we try, most will/may survive BUT be about 1/8 their potential size. Good Growing, Julius +More >Ron > >I can a small rider to Alistair's email to say that we've a good many >rheophytic and helophytic aroids in cultivation here, including most of the >genera that Alistair mentions. All do very well in shallow trays of water in >pots of pure 1:1 perlite:ground sphagnum in light shade with weekly feeding. > >The crucial thing seems to be to flush the pots with water every day and at >the same time to ensure that the trays are also flushed; they all without >exception hate standing in 'stale' water. > >Peter >----- Original Message ----- >From: "Alistair Hay" >To: >Sent: Sunday, August 22, 2004 6:25 AM >Subject: Re: [aroid-l] Aquatic Homalomena species (Aroids as sumerged >aquatics?) > > > > Ron: > > > > Probably any of the rheophytes are worth a try as submerged aquatics, but >I > > would guess that most would, if successful, try to grow out of the water. >Of > > asian things, the rheophytic species of Schismatoglottis, Bucephalandra, > > Aridarum (includes Heteroaridarum), Phymatarum and Piptospatha (includes > > Hottarum) - see my papers in Telopea 9 (2000) with Josef Bogner and >Yuzammi. > > There are a number of rheophytic Homalomena species, but most have not >been > > taxonomicaly revised except for New Guinea (see Hay in Blumea 1999). There > > is a messy complex around Homalomena trapezifolia (includes Emerald Gem) > > which includes a number of rheophytic forms from the Malay Penisula > > (probably extending into southern Thailand), also Furtadoa (=Homalomena) > > sumatrensis (or is it sumatrana - don't have my notes with me). >Cyrtosperma > > beccarianum is also rheophytic, but I am fairly sure if you tried to grow > > this under water it would soon have its leaves out of the top of the >tank - > > maybe Julius has tried it. > > > > Alistair > > ----- Original Message ----- > > From: "ron iles" > > To: > > Sent: Saturday, August 21, 2004 11:51 AM > > Subject: Re: [aroid-l] Aquatic Homalomena species (Aroids as sumerged > > aquatics?) > > > > > > Gentlemen > > > > Thank you for the interesting information on Homalomena expedita(?) In > > vain I try to abandon my life-long love of freshwater flora & fauna. > > Please may I ask which species of Homalomena, & species of other aroid > > genera apart from well known Cryptocoryne, Anubias, Lagenandra, & even > > Spathiphyllum can thrive as submerged aquatics? > > > > Ron Iles > > > > ----- Original Message ----- > > From: "Alistair Hay" > > To: > > Sent: Friday, August 20, 2004 9:45 PM > > Subject: Re: [aroid-l] Aquatic Homalomena species > > > > > > > If this is the plant I think it is (from Julius' description of looking > > like > > > water hyacinth), it is Homalomena expedita, from Sarawak. It grows in > > fresh > > > or brackish water in full sun, with the leaves emersed. It is > > stoloniferous > > > and colony forming, and I would say has weed potential in wetland areas. > > It > > > flowers infrequently, and unlike most asiatic homalomenas has solitary > > > rather than clustered inflorescences. > > > Alistair > > > ----- Original Message ----- > > > From: "ron iles" > > > To: > > > Sent: Saturday, August 21, 2004 4:18 AM > > > Subject: Re: [aroid-l] Aquatic Homalomena species > > > > > > > > > Is it a plant which grows better emersed or submerged? > > > > > > R > > > ----- Original Message ----- > > > From: Julius Boos > > > To: aroid-l@lists.ncsu.edu > > > Sent: Friday, August 20, 2004 10:22 AM > > > Subject: Re: [aroid-l] Aquatic Homalomena species > > > > > > > > > > > > > > > > > > > > > >From: RAYMOMATTLA@cs.com > > > >Reply-To: aroid-l@lists.ncsu.edu > > > >To: aroid-l@lists.ncsu.edu > > > >Subject: [aroid-l] Aquatic Homalomena species > > > >Date: Wed, 18 Aug 2004 22:04:29 EDT > > > > > > > I`d suggest that you send Pete Boyce a photo, I have the plant, it >grew > > > extremely well, the leaf blades look like a water hyacynth, correct, > > > spatulate?? I too would like an ID, it is a VERY good aquatic plant! > > > > > > Julius > > > > > > >Im am trying to get any information on the Homalomena species that >Mr. > > > Homes > > > > > > >offered at last years IAS show and sale. Does anyone know precisely > > > where he > > > >collected these or has anyone had theirs to flower yet? > > > >Michael Mattlage > > > > > > > [ Scanned by JARING E-Mail Virus Scanner ( http://www.jaring.my ) ] > > > >

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