There is a lettuce so troublesome to the farmer that large sums of money have been appropriated to exterminate it. It is called the Prickly Lettuce, because its leaves and stalks are prickly. It came to this country from Europe. It is quite as destructive to the farmer’s crops as is the Canada thistle. [Illustration] CLEMATIS. Of course the clematis akenes fly. Nothing so fluffy as they, in the seed world, could do otherwise. The wild clematis that grows over the bushes in some swamps is a beautiful vine with glossy leaves and clusters of pretty white flowers. After the snowy flowers have gone it is still beautiful, for then each little akene waves a long, shining, curly plume. The whole vine is covered with these shining, twining plumes. But a day comes when they no longer shine. Each curling plume looks like a mass of down, for its parts have separated and stand out, and we now see that it is shaped like a feather, a downy fluffy feather. The whole vine is a soft fluffy mass. This does not last long, for the akenes leave the parent vine and are borne aloft on their airy plumes by the wind that scatters them far and wide. [Illustration: Clematis gone to seed.] Some fall upon the right kind of soil, where they are covered by the leaves of autumn, and lie safely until spring comes. Then they wake up and grow each into a beautiful clematis vine with shining leaves. There is a beautiful clematis with large blue-purple flowers that grows in the mountains of Virginia and in some other places. ASTERS AND GOLDEN-ROD. Asters and golden-rod blossom in the fall. Then the country roads are lovely to walk over, and the fields are as bright as can be with blue or purple or white asters and yellow golden-rod. [Illustration: Asters.] Some kinds of golden-rod and asters blossom in the summer, but most of them wait until late in the season. They are almost the last flowers to come and almost the last to go. When their bright flowers fade they are still pretty. Each “flower” of the asters is like the dandelion, a cluster of very small flowers, and the golden-rod flower head is made up of very many tiny flowers. Each little flower has its own akene and plume quite like the dandelion, but a great deal smaller, and in time the clusters that were flowers become clusters of soft downy plumes. This state does not last long, for the akenes are blown away by the wind and sown far and near over field and roadside. If you brush against the downy aster and golden-rod heads when the seeds are ripe, the akenes will cling to your clothes like cobwebs and you will carry them about with you until finally they fall off. Perhaps that is one way by which the golden-rod and aster seeds travel about; they cling to animals that pass and so are carried far away. But they do not cling as well as some other seeds we are soon to know about. [Illustration: Golden-rod.] THE WILLOW. [Illustration: Pussy willow.]