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All looks normal to me, no real sign of disease or pests, might just be a variety characteristic. I have Georgia Jets which do not show any wrinkling. Check under the leaves and if nothing I would say not to be concerned.


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The yellow thing and the white streaks both parts of the same fungus. The yellow thing is the mushroom or "fruiting body," the part of the fungus that makes spores. The white streaks are the non-reproductive body of the fungus, called hyphae, which are the fungal equivalent of roots. It's probably a good idea to re-pot this plant in a potting mix ...


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Black spots on leaves are most often a fungal infection. You can either remove the leaf, ideally without waving it around in the air thus circulating the spores, or apply something like Neem Oil which is an anti-fungal solution. You may wish to dilute it (1% product to 99% water) to start with, or apply sparingly. Or you can try a more traditional treatment ...


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