. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening. I^^S^^^'fe iiii^4k||4/,. 2668 Victoria regia the g ant -^= Water lily of the Amazon in great patches miles m extent, and is perennial. The tuberous rhizome stands erect in the mud, where it is anchored by innumerable spongy roots which spring from the bases of the Ivs. in groups of 10-30 or 40. The tuber may be
. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening. I^^S^^^'fe iiii^4k||4/,. 2668 Victoria regia the g ant -^= Water lily of the Amazon in great patches miles m extent, and is perennial. The tuberous rhizome stands erect in the mud, where it is anchored by innumerable spongy roots which spring from the bases of the Ivs. in groups of 10-30 or 40. The tuber may be as much as 6 in. in diameter and 2 ft. long. It decays below as it grows above, The Ivs. are arranged in 55-144 order, and the flowers arise in a parallel but independent spiral of the same order (Planchon). Each leaf after the first seedling leaf has a broadly ovate, fused pair of stipules, these organs serving to protect the apex of the stem. The petioles and peduncles are terete, about 1 in. in diam., covered with stout, fleshy prickles, and traversed internally by 4 large, and a number of smaller, air canals. The pet- ioles attain to a length much greater than the depth of the water, so that the Ivs. can adjust themselves to changes of the water-level, though Banks states that they may be completely submerged in times of flood. The gigantic Ivs. are covered beneath with a close net- work of prickly veins, the larger of which project an mch or more from the leaf-surface; the tissues are full of air-spaces and canals, thus buoying up the mass of cellular matter. Besides many stomata on the upper surface of the leaf, which open into the air-chambers of the raesophyll, there are innumerable tiny depressions, in each of which one can see with a hand-lens that the leaf is perforated with a fine hole; these holes were termed by Planchon "stomatodes" ( 6:249). He considered them to be useful as air-holes to let out gases which, rising from the water or mud, might bo
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