The only information I qualified the plant's id was from the tag posted at the Chicago Botanical Gardens, Garfield Conservatory where I took a series of photos. Unfortunately I do not have the "top" view as you've shown so we could compare. But, I am attaching the photos of the tag and the full view. Thank you for giving this issue your attention. Whatever you deem correct, please do not hesitate to follow through. You are the expert in this category. I do see the definite difference in the sharp tips vs. the signage tips being more stunted.
