Some months ago I posted the photo below on Aroid l seeking
a possible identification. Two possible names came back but the first,
'Angra dos Reis', could not be located anywhere. The second was a form
of Philodendron hederaceum and some of you may recall I had
difficulty with that as a possibility.
Here's way: My plant has very long petioles, the
cataphylls differ from Philodendron hederaceum, and quite a few other
differences could be observed between the actual specimen and the
scientific description of Philodendron hederaceum especially the
purple brown blotches on the petioles and one vein. The petiole also is
ribbed. I've been watching the plant for any new signs that could be
tracked to a scientific source working ever since to find the correct
ID. Several major differences are now apparent.
Yesterday Leland Miyano hit the jackpot. He told me
Philodendron "Angra dos Reis" was simply Philodendron cordatum from
Brazil. I looked up Philodendron cordatum on TROPICOS and
the photos on that site are as perfect a match to my specimen as they
come. A couple of Dr. Croat's field notes closed the deal since they
were a description of my specimen.
I've written a page on Philodendron cordatum today
but while researching that name on the internet found that many websites were
claiming Philodendron cordatum is a synonym for Philodendron
scandens oxypetalum. If you read the scientific description, that
is not possible, especially since P. scandens oxypetalum is
simply Philodendron hederaceum. Lots of things just don't match
between these specimens even if you allow for variability.
Here's what I've learned so far and my sincere thanks to
Leland for his help!