I found these eggs on a stem of Salvia leucantha - two rows, a total of maybe 60 eggs in the batch. Some kind of true bug eggs, maybe? The somethings on the stem beneath them are interesting, too. I think they must be related, either created by the same creature that laid the eggs or by another creature that came after it. I considered the possibility that it was unrelated, but then I found another stem with the same eggs at the tip and the same strange things below. It reminds me of the trap part of a Sundew plant - could it be a protective device for the eggs? The stems were dead, so it's not an outgrowth of the plant.