The leaves do look like it but the inner side of the flower bract is red-pinkish instead of the usual cream-white like seen on the web..
I photographed it in a front garden of Rio de Janeiro town, the plant was towering high above my head and I couldn't get more details..

It really does look like P. bipinnatifidum, leaves stems etc. I wonder if the red-tinged flower bract could be due to age, growing area, conditions etc.?

Could it be Monstera deliciosa (synonym is Philodendron pertusum)?

Thanks Lin, I think you're right, growing conditions can cause minor differences, but I wanted to make sure as I am not that familiar (yet) with tropical plants!

No Tee, definitely not a Monstera delisiosa, the leave shape doesn't match.

So I see.

Looks like you can mark this one Solved.

I wonder if it could be a very mature form of Thaumatophyllum xanadu

Scroll down this page at Exotic Rainforest website and look at the spathe photo: http://www.exoticrainforest.co...

I copied this from the exoticrainforest info in the above link: "The spathe of Philodendron xanadu is dark violet-purple bordering on red and the differences in the spathes of Philodendron xanadu and Philodendron bipinnatifidum indicate to a scientist this is positively a species and is not a cultivar."

Thanks Lin for the link to that interesting article, but I doubt it could be Philodendron xanadu, the size of that plant is up to 4 ft ( 1.20m), (according to our database). The plant in Rio was really huge. The leaves of Philodendron xanadu also look more flat and much more deeply cut especially with the mature plant in the link, they do perfectly match though with Philodendron bipinnatifidum.
I see what you mean with the red coloured spathe of P. xanadu but that is on the outside, the red on mine is on the inside of the spathe, the outside is green .. so I think we better stay with Philodendron bipinnatifidum..

LOL, after looking more closely at photo's I see what you mean and I agree that it's more than likely P. bipinnatifidum!

I found out that Philodendron speciosum is a perfect match, colour of spathe included!
http://www.htbg.com/search.php...
http://www.tropicsphere.com/ma...

Great site Myriam! The Philodendron was a looong way down the page so I enlarged it ..

http://www.htbg.com/Araceae/PH...

I'm surprised how many undetermined species there are in the family on that site being a botanical garden!

That is beautiful! I bought one at a plant sale here but it was incorrectly tagged. Glad to have the correct ID.

Thanks Janet, I stumbled upon that site trying to identify Philodendrons I photographed in the rainforest.
(I don't know how you enlarged it?)

Yes, there are an amazing number of undetermined Philodendrons and other Araceae members!

I think I should ask for a parent page in the database..

Nice Tee you now got the right Id for your plant!

bonitin said:(I don't know how you enlarged it?)

I clicked on the photo Myriam.

for the correct ID! It sure is a beauty and it will be great to have additional photo's in the database! Thaumatophyllum speciosum