Sue - It's been raining quite a bit here lately, so getting a photo is not possible at this time. Maybe later. Yes, it is all the same cross in one cup that has the damage showing on it's leaves. Perhaps it is something as simple as a sunburn. Though all the new seedlings are expose and none of them have any issues visible on their leaves. I looked closer and it seems to be the leaves on just one seedling in the cup. I thought it was several of them, but in fact it is only one plant.
