The tall FOXGLOVE BEARD-TONGUE (P. digitalis), with large, showy white blossoms tinged with purple, the one most commonly grown in gardens here, escapes on the slightest encouragement to run wild again from Maine to Virginia, west to Illinois and Arkansas. Small bees crawl into the broad tube, and butterflies drain the nectar evidently secreted for long-tongued bees, but without certainly transferring pollen. To insure cross-fertilization, the flower first develops its anthers, whose saw-edges grating against the visitors thorax, aid in sifting out the dry pollen; and later the style, which when immature clung to the top of the corolla, lowers its receptive stigma to oppose the bee's entrance. Professor Robertson has frequently detected the common wasp nipping holes with her sharp jaws in the base of the tube. With remarkable intelligence she invariably chose to insert her tongue at the precise spots where the nectar is stored on either side of the sterile filament. BLUE-EYED MARY; INNOCENCE; BROAD-LEAVED COLLINSIA (Collinsia verna) Figwort family Flowers - On slender, weak stalks; whorled in axils of upper leaves. Blue on lower lip of corolla, its middle lobe folded lengthwise to enclose 4 adhering stamens and pistil; upper lip white, with scalloped margins; corolla from 1/2 to 3/4 in. long, its throat about equaling the deeply 5-cleft calyx. Stem: Hoary, slender, simple or branched, from 6 in. to 2 ft. high. Leaves: Thin, opposite; upper and more acute ones clasping the stem; lower, ovate ones on short petioles. Fruit: A round capsule to which the enlarged calyx adheres. Preferred Habitat - Moist meadows, woods, and thickets. Flowering Season - April-June. Distribution - Western New York and Pennsylvania to Wisconsin, Kentucky, and Indian Territory. Next of kin to the great Paulonia tree, whose deliciously sweet, vanilla-scented, trumpet-shaped violet flowers are happily fast becoming as common here as in their native Japan, what has this fragile, odorless blossom of the meadows in common with it? Apparently nothing; but superficial appearances count for little or nothing among scientists, to whom the structure of floral organs is of prime importance; and analysis instantly shows the close relationship between these dissimilar-looking cousins. Even without analysis one can readily see that the monkey flower is not far removed.