Yellow, sometimes tinged with red.
New England southward and westward.
Flowers: axillary; growing in groups of threes at the summit of the stems. Calyx: small, with five very short teeth. Corolla: funnel-form; of five unequal, recurved lobes, the larger one having a rich nectar-bearing gland at the base and being more highly coloured than the others. Stamens: five: protruding. Pistil: one; style, long; protruding. Leaves: opposite; on petioles; elliptical; serrated; smooth. A shrub two to four feet high; with highly coloured bark.
We may hardly flatter ourselves that the lower lobe of the co-
rolla of D. Diervilla has been so highly coloured simply to please our artistic sense. It is to inform Master Bee that they are a rich family worthy of his attention, and that they have a gland full of nectar awaiting him. Of course, in inviting him thus cordially to their feast, he is supposed to return the civility by leaving for them a little package of pollen at a friend's house on his way home. But Master Bee, like the rest of us, has his moods, and when he is feeling very wicked he just pierces the gland from the outside with his sharp little bill, and calmly sips away without so much as a "thank you" in return.