Frequent throughout the Rockies in moist open woods and alpine meadows at the higher elevations; flowering during July. LENTIBULARIACEÆ _Butterwort Family_ In our species, stemless herbs with fibrous roots and 1-flowered scapes; basal, tufted, entire leaves, the upper surface covered with a viscid secretion, to which insects adhere and are caught by the curling of the sensitive leaf margins; calyx 4—5-parted or 2-lipped; corolla sac-like and contracted into a spur. [Sidenote: =Pinguicula vulgaris= L. _Butterwort._] Leaves pale yellowish-green, 3—7 in a rosette at the base of the scape, greasy to the touch on the upper surface, ovate-lanceolate, obtuse, 1—2 inches long, ¼ as wide. Flowers solitary on a slender scape, violet-purple, nearly ½ an inch broad when expanded, 2-lipped; the upper lip 2-lobed; the lower 3-lobed, larger; the tube gradually contracted into an obtuse or acute nearly straight spur, ⅓ of an inch long. In wet mossy places, on rocks, or edges of gravelly stream beds throughout the Rockies, at the lower altitudes; the bright little flowers suggesting violets; flowering during June. [Illustration: _a_ Pinguicula vulgaris L. Butterwort. _b_ Pentstemon fruticosus (Pursh) Greene. (¾ Nat.) Large Purple Beard-Tongue.] RUBIACEÆ _Madder Family_ In our species, herbs with 4-angled stems and branches, with verticillate leaves and small 4-parted flowers, regular and perfect and fruit separating into 2-carpels. [Sidenote: =Galium boreale= L. _Northern Bed-straw._] Smooth, erect, simple or branched, leafy, 1—2½ feet high. Leaves in 4’s, lanceolate or linear 3-nerved, obtuse or acute, 1—2½ inches long, the margins sometimes fringed with hairs. Flowers white, numerous in a terminal panicle; corolla 4-parted, ⅛ of an inch across, the lobes lanceolate, acute. In open ground and in open woods or thickets at the lower altitudes, throughout the Rockies; flowering in July. CAPRIFOLIACEÆ _Honeysuckle Family_ Shrubs, trees, vines or perennial herbs with opposite leaves and mostly cymose flowers; calyx 3—5-toothed, the corolla 5-lobed or sometimes 2-lipped; stamens 5-inserted on the tube of the corolla and alternate with the lobes; fruit a berry, drupe or capsule. Corolla rotate or urn-shaped; flowers in compound cymes. Leaves pinnate. =Sambucus.= Leaves simple. =Viburnum.= Corolla tubular or campanulate, often 2-lipped. Creeping, somewhat woody herb; flowers in pairs, pink. =Linnæa.= Shrubs, erect or climbing. Corolla short-campanulate, regular or nearly so. =Symphoricarpos.= Corolla tubular and irregular. =Lonicera.= [Sidenote: =Sambucus pubens= Michx. _Red-berried Elder._]