. The American florist : a weekly journal for the trade. Floriculture; Florists. 9: -/nA. RLx eltGou\^s M soviTH p^r\^, cH\c^GO will be fixed within its tissues, while the oxygen will be set free so as to restore the purity of the air. It is in the per- formance of this function that the leaves, from the extent of green surface they present, are peculiarly energetic. The proportion of carbonic acid in which the healthy plant will thrive under the in- fluence of strong sunlight is not less than 7 or 8 per cent; but a much smaller pro- portion than this will sooa be fatal to it if grown in the s
. The American florist : a weekly journal for the trade. Floriculture; Florists. 9: -/nA. RLx eltGou\^s M soviTH p^r\^, cH\c^GO will be fixed within its tissues, while the oxygen will be set free so as to restore the purity of the air. It is in the per- formance of this function that the leaves, from the extent of green surface they present, are peculiarly energetic. The proportion of carbonic acid in which the healthy plant will thrive under the in- fluence of strong sunlight is not less than 7 or 8 per cent; but a much smaller pro- portion than this will sooa be fatal to it if grown in the shade. It is to a peculiar compound formed in the cells of the green surfaces, of which the carbon in- troduced from the air is an essential ingredient, that the color is due; and as this fix '.tion can only take place under the influence of sunlight (artificial light, even the most powerful, having no influ- ence upon it), plants which grow in dark situations are either in part or entirely destitute of color. The influence of light upon the green color of the leaves is remarkably shown when the buds are unfolding. The stronger the sunshine the sooner will they assume their char- acteristic hue, and on the other hand, in dark, dull weather they will remain for days together, almost of the same color as before they expanded. Permit me now to express a hope that the study of this subject may be a help to us in our horticultural practice, whether it be in the arrangement of plants, the pruning of trees or the treatment of bulbs after their flowers are gone. Rex Begonias. Our illustration shows a nook in the conservatory at South Park, Chicago, where Superintendent Kanst has massed a lot of his immense specimen Rex begonias. Manv of these plants are three feet through and indicate what may be done with the Rex begonia by skillful handling Those in the foreground stand on brick piers, the bottom of the pot being within about half an inch of the surface of the water. They thrive splen
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectfloriculture, bookyea
