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  Does anyone know this Philodendron?
From: ExoticRainforest <Steve at ExoticRainforest.com> on 2009.07.14 at 21:44:56(19521)

I've had this Philo for at leastthree years, likely more, and have no idea what it might be or where itoriginated. I've taken the plant to Dr. Croat in St. Louis and heappears to believe it is fully grown but has no idea what it might be. I've also sent these photos to several aroid botanists with noresults. Both the blades and the pot in the photo are approximately15 cm (6 inches) and the entire plant is small. I grow it inmoderately bright light but have never seen an inflorescence. I'veincluded photos of both the adaxial and abaxial blade surfaces (upperand lower), the petioles and stem. If any of you grow it or know whereit originated I would appreciate the info.

Thanks!

Steve Lucas

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From: hermine <hermine at endangeredspecies.com> on 2009.07.15 at 11:11:55(19529)
At 09:44 PM 7/14/2009, you wrote:

I've had this Philo for at leastthree years, likely more, and have no idea what it might be or where itoriginated.

It's sort of like not cannifolium! but it is also veryattractive.

herm

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From: "Elizabeth Campbell" <desinadora at mail2designer.com> on 2009.07.15 at 13:35:59(19530)
Steve, the one above the Anthurium bicolor in this photo is very similar. I'm back in Mindo in October and I can take a closer look at the plant if you wish. At the time, I think I just though "oh, another one of those lanceolate Philos" and was much more interested in the Anthurium.

Photo is at the link below

http://s256.photobucket.com/albums/hh196/HabloPorArboles/Aroids%20A%20Go-Go/?action=view¤t=DSCN8546.jpg

Beth

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From: "Elizabeth Campbell" <desinadora at mail2designer.com> on 2009.07.15 at 13:39:15(19531)
Yeah, I just had a closer look at my archives, and I have a picture of what looks like your plant, growing all on its lonesome, Steve. Mindo-Nambillo Protected Forest, 1200 meters of elevation, Pichincha Province.

http://s256.photobucket.com/albums/hh196/HabloPorArboles/Aroids%20A%20Go-Go/?action=view¤t=DSCN8661.jpg

Beth

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From: ExoticRainforest <Steve at ExoticRainforest.com> on 2009.07.15 at 13:55:46(19532)

Ireceived this note today from aroid botanist Simon Mayo at the RoyalBotanic Garden Kew in London. Simon has spent a lot of time in Brazildoes not know it as well but I'd still like to know if any of you growit! Any info would help. For some reason I've always thought this isa Brazilian species but the tag telling where I got it was displacedlong ago.

Dear Steve,

It's still at thejuvenile monopodial growth stage because the leaf sheaths arewell-developed. Once it goes sympodial you should get leaves withvirtually no sheath alternating with prophylls that have two keels andno blade. It looks a bit as though it could turn into somethingresembling Ph. martianum, but at this juvenile stage it's hard todiagnose. It isn't trailing so it probably has a compact habit andstoutish stem with short internodes when mature. Possibly Brazil! Sorry I can't do better!

All the best

Simon

Steve Lucas

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From: Peter Boyce <phymatarum at googlemail.com> on 2009.07.15 at 18:15:21(19536)
Steve,

My mind turns towards P. pusillum or P. humile....

Pete

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From: ExoticRainforest <Steve at ExoticRainforest.com> on 2009.07.15 at 20:16:30(19537)
Thanks Pete! I'll check out bothspecies and read all the characteristic details as possible.

Steve

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From: ExoticRainforest <Steve at ExoticRainforest.com> on 2009.07.15 at 20:19:42(19538)
Thanks Beth. Would you have anyphotos of the underside of the blade?

Steve

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From: ExoticRainforest <Steve at ExoticRainforest.com> on 2009.07.15 at 20:26:42(19539)
I have several Philodendronmartianum which is often called Philodendron cannifolium and thecharacteristics are not a good match. I wrote a very detailed pagewhich is on the site about a year ago with both Brazilian botanistMarcus Nadruz' and Leland Miyano's help on how P. martianum cameto be called P. cannifolium. Interesting story but technicallythere is no such plant as Philodendron cannifolium. http://www.exoticrainforest.com/Philodendron%20martianum%20pc.html

I'm now checking out Pete's suggestions! Thanks for the input.

Steve

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From: ExoticRainforest <Steve at exoticrainforest.com> on 2009.07.15 at 20:54:32(19540)
Please do check Beth! Any and allinfo is valuable!

Steve

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From: ExoticRainforest <Steve at ExoticRainforest.com> on 2009.07.15 at 21:04:42(19541)
Pete, I just found Eduardo'spublished description of Philodendron pusillum and the driedmaterial looks a great deal like the blade and venation of this plant. I just sent him a note with the photos. I also checked out his Philodendronhumile but found virtually nothing. If any of you are interestedin reading and having a copy of his paper I've attached it in PDF formincluding photos. I'll also report back with his opinion as soon as Ireceive a response.

I'm planning on reading his entire paper in the morning!

Very good eyes Pete so thanks again!!

Steve Lucas

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From: ExoticRainforest <Steve at ExoticRainforest.com> on 2009.07.15 at 21:07:49(19542)
Please allow me to correct myself! I found a copy of Eduardoand Josef's paper! I can't leave out a very prominent aroid botanist!!!

Steve

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From: ExoticRainforest <Steve at exoticrainforest.com> on 2009.07.16 at 05:27:30(19544)
I received this response this morning from Dr. Eduardo Gonçalvesin Brazil. It appears this specimen is likely to be Philodendronpusillum from Colombia. After I read Eduardo's note I checked thebase of the stem and there is some reddishness. I've attaached thephoto. I've also read his and Josef's published description and theplant is a very good match.

Thanks a bunch Pete! It is great to have guys like you, Tom and allour other botanists on the forum to help solve these mysteries!

Steve Lucas

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From: "Marek Argent" <abri1973 at wp.pl> on 2009.07.16 at 11:20:17(19549)
Hello,

I have photos of Philodendron martianum and it has swollen petioles

http://www.wschowa.com/abrimaal/araceum/philodendron/martianum.htm

Marek

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From: "Marek Argent" <abri1973 at wp.pl> on 2009.07.17 at 09:00:15(19558)

This is strange. I typed in the MoBot Tropicos database the name "Philodendron cannifolium" and the name is accepted,

http://www.tropicos.org/NameSearch.aspx

I googled for images and most of them show Ph. martianum or other popular species like Ph. sagittifolium or Ph. hastatum.

http://images.google.pl/images?gbv=2&hl=pl&safe=off&rlz=1B3GGGL_plPL306PL306&q=Philodendron+cannifolium&sa=N&start=18&ndsp=18

To mix up more: I have and ald lithography which presents a species Philodendron cannaefolium (see the attachment), there's no such entry in Tropicos, but I found a page showing this "species" and it is not Ph. martianum, it resembles Ph. hastatum ("glaucophyllum"):

http://www.desert-tropicals.com/Plants/Araceae/Philodendron_cannaefolium.html

Another page says that Ph. cannaefolium is a synonym of Ph. martianum, but there are no photos:

http://davesgarden.com/guides/pf/go/57521/

And a forum page with photos of Ph. martianum and a long discussion after it

http://www.ubcbotanicalgarden.org/forums/showthread.php?t=30838

Have fun

Marek

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From: ExoticRainforest <Steve at ExoticRainforest.com> on 2009.07.17 at 09:43:29(19562)

I ran into the same thing but if youread the page you'll see how we tracked down the info. We had to go toKew to get the real story. The problem appears to date back to VonMartius (for whom the plant was named) when he drew an exceptionaldrawing of the plant but called it Philodendron cannifolium. I thinkif you read the entire page you'll see how the information wasextracted. I had a great deal of difficulty understanding all of thisuntil Leland tracked down the Kew's info and we got Marcus involved.

Steve

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From: ExoticRainforest <Steve at ExoticRainforest.com> on 2009.07.17 at 09:48:45(19563)
Marek, if you go this page on theKew's site and type in the name Philodendron cannifolium you'll findeven though it has been published the name is illegal.

http://apps.kew.org/wcsp/prepareChecklist.do;jsessionid401C4F4D3E096297071B4049CFACD3?checklist=selected_families%40%40256120920080243474

As for the garden sites, I never trust them since they often repeat"plant myths". I have even found the same "myths" on the USDA's site.

Steve Lucas

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From: ExoticRainforest <Steve at exoticrainforest.com> on 2009.07.22 at 15:42:19(19585)
Pete, I just wanted to thank youagain for pointing me towards Philodendron pusillum as per myrequest on Aroid l for an ID on the species. Eduardo helped a greatdeal and I've created a brief page on the plant. The tag is long lostand I'm not even certain where it came from but it does appear to berare in collections according to Eduardo's material. I've tried toinclude photos that match to his and Josef's description but if you seeanything wrong please do point it out. I've also sent Eduardo the linkso he can tell me if he sees anything wrong.

I know I often get long winded in my own zeal to learn and scare peopleaway from reading my pages so I've intentionally kept this one brief. These pages are really just my personal notes to myself and I use themto remind myself of what I've been taught by guys like you, Eduardo,Tomand others. So thanks again for your help.

If anyone on this forum has managed to see an inflorescence on thisspecimen and have a photo I'd love to be able to use it, especially ifyou know what the fruit color is. That info was not included in thedescription and I'm not certain if it is known.

http://www.exoticrainforest.com/Philodendron%20pusillum%20pc.html

Steve Lucas

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