. Botany all the year round; a practical text-book for schools. Botany. 34 THE LEAF VEINING Material. — A specimen of each of the different kinds of veining. For parallel veining any kind of arum, lily, or grass will do ; for net veining, ivy, maple, elm, or peach, etc. Classes in cities can use leaves from potted plants of wandering Jew {^Zebrina pendula), calla lily, and other easily cultivated specimens, or blades of grass, plantain, and vari- ous parallel and net veined weeds can be picked up here and there, even in the largest cities. Have a number of leaves placed with their cut ends in
. Botany all the year round; a practical text-book for schools. Botany. 34 THE LEAF VEINING Material. — A specimen of each of the different kinds of veining. For parallel veining any kind of arum, lily, or grass will do ; for net veining, ivy, maple, elm, or peach, etc. Classes in cities can use leaves from potted plants of wandering Jew {^Zebrina pendula), calla lily, and other easily cultivated specimens, or blades of grass, plantain, and vari- ous parallel and net veined weeds can be picked up here and there, even in the largest cities. Have a number of leaves placed with their cut ends in red ink from three to six hours before the lesson begins. 37. Parallel and Net Veining. — Com- pare a leaf of the wandering Jew, garden lily, or any kind of grass, with one of cot- ton, maple, ivy, etc. Hold each up to the light, and note carefully the veins or little threads of woody substance that run through it. Make a drawing of each so as to show plainly the direction and manner of veining. Write under the first. Parallel veined, and under the second, Net veined. This distinction of leaves into parallel and net veined cor- responds with another important differ- ence in plants, existing in the seed, and is used by botanists in distinguishing the two great classes into which seed-bearing plants are 54. — Paral lel-veined leaf of lily of the valley {after Gray).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Andrews, Eliza Frances, b. 1840. New York, Cincinnati [etc. ] American book company
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbotany, bookyear1903
