. 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; Horticulture; Horticulture; Horticulture. 1828 TBAGOPOGON A. Flowers purple porrifdlius, Linn. Salsify. Vegetable Oyster. Oyster Plant. Figs. 22a8, 2543. Tall strict biennial, sometimes 4 ft. high when in bloom, glabrous: fls. showy, closing at noon or before, the outer rays eK- ^eeded bv the involucre scales;
. 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; Horticulture; Horticulture; Horticulture. 1828 TBAGOPOGON A. Flowers purple porrifdlius, Linn. Salsify. Vegetable Oyster. Oyster Plant. Figs. 22a8, 2543. Tall strict biennial, sometimes 4 ft. high when in bloom, glabrous: fls. showy, closing at noon or before, the outer rays eK- ^eeded bv the involucre scales; peduncle thickened and. :%). hollow beneath the heads. S. Eu. Naturalized in many parts of the country, often becoming a persistent weed. See Salsify. AA. Flowers yellow. pratinsis, Linn. Goat's Beard. Moreorlessbranched, 3 ft. or less tall : outer rays exceeding the involucre scales: peduncle scarcely swollen. A weed from Eu- rope. L. H. B. TRAILERS. See Vines. TRAILING ARBUTUS. Epigwa repens. TRAILING BEGONIA. Cissiis discolor. TRAINING. See Prunim,. TRANSPIRATION is the process by which water is given off in the form of vapor from leaves and stems. Instead of a circulation of the sap in plants similar to the movements of the blood of animals, water contain- ing mineral salts is taken in at the roots in liquid form and carried upward to the leaves through the woody tissue, and then evaporated, leaving the mineral or ash behind in the leaf, where it serves in making food. The chief purpose of transpiration Is, therefore, to carry a stream of mineral food from the soil to the green parts of the plant, although it also serves to aid in the ex- change of gases with the air, and preserves more equable temperatures of the body of the plant. Minerals may be absorbed by the plant only in very dilute solutions. Hence it is necessary for the plant to lift several thousand pounds of water to the leaves in order to obtain one pound of minerals. After the mineral- laden water reaches the
Size: 1073px × 2330px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjec, booksubjectgardening
