39. Valerianaceæ.—Herbs with opposite leaves and small (sometimes irregular) flowers. Sepals 3 to 5, often downy. Petals 3 to 5. Stamens 1 or 3. Ovary of three carpels, one-celled. (The Valerian Family.)
40. Dipsaceæ.—Herbs with opposite leaves; and heads of small flowers, mostly blue. Calyx enclosed in a whorl of scaly bracts. Petals 4 or 5. Stamens 4, free. Ovary one-celled and one-seeded. (The Teasel Family.)
41. Compositæ.—Herbs with heads of small flowers with tubular or strap-shaped corollas. Calyx absent or represented by a whorl of silky hairs (pappus). Stamens 4 or 5, anthers generally united. (The Daisy Family.)
42. Campanulaceæ.—Herbs with milky sap; alternate, entire, scattered leaves; and usually conspicuous, blue, regular flowers. Sepals, petals, and stamens 5. Ovary of 2 to 8 carpels. (The Bellflower Family.)
43. Vacciniaceæ.—Low (mostly mountainous) shrubs, with scattered, simple, alternate leaves; small drooping, reddish or pink, regular flowers; and edible berries. Sepals, petals, and carpels 4 or 5. Stamens 8 or 10. (The Cranberry Family.)
44. Ericaceæ.—Shrubs or herbs with opposite or whorled, evergreen leaves; and small conspicuous, regular, flowers. Sepals, petals, and carpels 4 or 5. Stamens 5 to 10. (The Heath Family.)
45. Aquifoliaceæ.—Shrub with evergreen, spiny leaves; and small, greenish, regular flowers. Sepals, petals, stamens, and carpels 4 or 5. Fruit berry-like, with one-seeded stones. (The Holly.)