First comes a collar of tiny green pear-shaped glands, of which nobody knows the use. Then comes a purple collar made up of stamen heads without any stalks. And a little way below these there is a deep band of round green seed-vessels like small beads. These are hidden in the lower part of the green sheath; but in autumn they grow much larger, and soon burst open the covering sheath. Then they turn into beautiful scarlet berries. These berries are very poisonous. The root of the Cuckoopint is a rough brown knob with many white rootlets hanging from it. Plate XXVIII: 1. COMMON MARE'S TAIL 2. COMMON BUTTERBUR 3. GREATER BURDOCK 1. COMMON MARE'S TAIL This strange-looking plant grows in many parts of the country, and its spikes are found during summer in ponds and ditches. The flowers are so tiny that you may scarcely notice them. They grow in a circle close round the main stem where the leaves join it, and they are greenish in colour. These flowers have no petals, and all you can see is a small green ball with a yellow dot on the top of it. The leaves of the Common Mare's Tail grow in circles up the stem at short distances apart. They are very narrow and pointed, exactly like short green straps, and you find from six to twelve of these strap-leaves in the same circle. 2. COMMON BUTTERBUR The Common Butterbur grows in wet places, especially beside streams. It is not found in the North of Scotland, but is common in the South country. The flowers appear very early in spring, before the leaves, and they are nearly withered by the time the leaves are at their best. The flowers grow closely crowded together in cone-shaped heads, near the top of a thick fleshy stalk. These flowers are made up of tiny pink tubes with toothed edges, and there is a row of long-headed pink stamens clinging to the inside of each tiny tube. Outside the head of flowers there is a thick bundle of narrow green pointed leaves, and each little bundle of green leaves and pink tubes has a short stalk of its own. You will notice the narrow green leaves which grow singly up this main stem. Sometimes these leaves become much broader at the tips, and when this is the case these leaf-tips are dark green and have toothed edges. The root leaves of the Butterbur are very large. They are roughly heart-shaped with sharply cut teeth round the edge. Each leaf is dark green and smooth above, but underneath it is woolly, and the short stalk on which it grows is hollow. 3. GREATER BURDOCK The Greater Burdock grows in waste places by the roadside and on the borders of fields. It is fairly common all over Britain and flowers in autumn. The Burdock is a low-growing bushy plant with strong stems. Growing close to the ground it has large coarse leaves not unlike rhubarb leaves. They are dark green, very wrinkled, and with slightly waved edges. The leaves which grow on the flower-stems are much smaller, and are long and rather narrow.