in Thoreau’s Journal:

An abundance of red lilies in an upland dry meadow….low from one to two feet high–up-right flowered––more or less dark shade of red-freckled & sometimes wrinkle edged––must have been some days. 

This has come with the intense summer heats– a torrid July heat like a red sunset threatening torrid heat. (Do we not always have a dry time just before the huckleberries turn?-) I think this meadow was burnt over about a year ago. Did that make the red lily grow? The spring now seems far behind–I do not remember the interval.