You might not notice these stamen catkins, but you could not help noticing the seed catkins. These cover the ground with tufts of white cotton wool like thistle-down, and when you lift one of these tufts you find that the pear-shaped green seed-vessels have split down the centre to allow many tiny seeds to escape, and each seed is winged with a tuft of silky down. After all the seeds have flown away on the wind, the withered seed-vessels still remain on the catkin, no longer green, but a rusty red-brown colour, which is very noticeable among the small glossy green leaves. PLATE XVII THE SCOTCH PINE OR SCOTCH FIR The Scotch Pine (1), or, as it is often called by mistake, the Scotch Fir, is one of our noblest trees; it is tall, and rugged, and sturdy, with a beauty which lies in its strength and dignity rather than in its grace. In bygone days large tracts of Scotland were clothed with vast forests of Scotch Pine, under whose gloomy branches many wolves roamed and the wild deer wandered in herds. But the owners of these noble forests cut down the trees to get money for the timber, and the wolves have disappeared. There is now only a scanty remnant of the great army of Pine trees which once clothed the northern lands of Britain. Those vast forests were not planted by man. The young trees sprang from seeds which had fallen from the woody fruit cones, and were carried by rooks or other birds to places where human beings rarely trod. There the young seeds grew and sent out their greedy roots. If the soil was good and plentiful they produced a strong carrot-shaped root, which bored deep into the ground and gave the tree such a firm hold that no storm could tear it up. But if the ground had only a little earth on the surface and there were hard rocks beneath, then the roots crept like serpents near the surface of the soil, clasping the rocks with a tight grip to steady the tree. [Illustration: PLATE XVII THE SCOTCH PINE 1. Scotch Pine Tree 2. Leaf Needles 3. Stamen Flower 4. Seed Flower (pink cones) 5. Green Cones 6. Grey Cone 7. Seed with Wing] How the wind roars in the Pine branches on the high mountain lands! It is like the sound of the sea. If the Pine tree had broad leaves, such as the Sycamore or the Lime tree, it would soon be blown down; but the storm gusts pass through its fine needle-leaves, and no harm is done. The trunk of the Scotch Pine is very rough, and it is covered with rugged pieces of reddish bark, separated from each other by deep furrows. It rises to a great height, throwing out many large branches on each side, and there is always a bushy rounded tree-top looking up to the sky. In a Pine forest the lower part of the tree is usually bare. This is because the trees are planted so close together there is little air except near the top of the tree, and the lower branches are stifled.