Can you post a closeup photo of a single leaf blade (both sides)? I have no idea why but many companies call anything with a leaf that looks similar to a juvenile Monstera a Monstera sp. when many are Asia species from other genera. The internodes between the blades appears to be quite a long distance apart so if you can measure that as well that could help. Another clue can come from the shape of the petiole. Will you take a close look at the stalk that supports a few blades and tell us the shape. It may be round but it can also have a canal or grooves and may even be an odd shape. All these clues help. No insult to Glasshouse but they are very bad at using incorrect names on aroids and this does appear to be an aroid vine. By the way, there are currently only 35 accepted species of Monstera in the world and all come from Central and South America. Dr. Tom Croat at the Missouri Botanical Garden is doing a new paper on the genus and the number will likely jump to 50 but most juvenile forms are not documented and this one is definitely a juvenile. Steve

I find jade roots to be generally fibrous and brownish too. Here's a good article, despite it's boring appearance: http://www.botgard.ucla.edu/html/botanytextbooks/generalbotany/typesofroots/

Gill & Crenda are right on. 8" pot sounds too large. It is not that they like smaller pots. The big pot is not necessary, and makes watering - in water retaining soil - more of the problem. Big pot = lots of soil = better chance of overwatering. For so much soil, the plant will sit in a 'muck' for too long, I suspect that's what happened to your plant. Forget the vermiculite (return it if you can - it is nor very good soil amendment). If you have to use C&S soil, please use a small amount of it (20, max 30%) and amend with grit & perlite. Many ppl mix it 50/50, but to make it better draining, decrease soil portion (especially if you have 'heavy hand' with watering can, as I used to too :)

then you may have sunburned the leaves ... are they the tallest.. and perhaps the one that shaded those under???.. can you note some pattern ... ken