. Natural history object lessons : a manual for teachers. on of the stem is covered with earth, thecovered portion will send out branches on which potatoeswill be formed as well as roots. Every part of the potato-plant except the tuber dies off on the approach of winter;and the tuber is the special provision made by the plantfor the reproduction of its kind next year. The eyes ofthe potato are real buds, and the solid flesh of the tuber * For further information on kinds of stems see Murohes Botany,page 18. PLANTS AND THEIE PRODUCTS. 31 consists mainly of starch, the destined food of the young
. Natural history object lessons : a manual for teachers. on of the stem is covered with earth, thecovered portion will send out branches on which potatoeswill be formed as well as roots. Every part of the potato-plant except the tuber dies off on the approach of winter;and the tuber is the special provision made by the plantfor the reproduction of its kind next year. The eyes ofthe potato are real buds, and the solid flesh of the tuber * For further information on kinds of stems see Murohes Botany,page 18. PLANTS AND THEIE PRODUCTS. 31 consists mainly of starch, the destined food of the youngplant. There are some otherforms of stems commonlylooked upon as roots,such as bulhs and are really buds*covered with scalesThey grow underground,or partially so, as in thelily and onion. A connis in form much like abulb, only it is solid. Itis a flattened under-ground stem. The crocusand snowdrop are fami-liar instances of the corm. We have seen that plants are composed for the mostpart of cellular tissue, woody tissue, and vascular Pig. 26.—Potato.
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