. Notes on the life history of British flowering plants. Botany; Plant ecology. II GERANIACE^ 137 the leaves of 0. Acetosella consists of three layers. The upper one consists of more or less blunt cones, the two lower ones of star-shaped cells, leaving large intercellular spaces between them. Some healthy leaves were laid flat on a plate and exposed to the rays of the sun falling perpendicularly on them. By pouring. Fig. 80.—Longitudinal section of leaf-stalk and motile organ, ibh, of one of the leaflet'? of Oxalis oarnea in the day position, p, epidermis of leaf-stalk; //, midrib of leaflet;
. Notes on the life history of British flowering plants. Botany; Plant ecology. II GERANIACE^ 137 the leaves of 0. Acetosella consists of three layers. The upper one consists of more or less blunt cones, the two lower ones of star-shaped cells, leaving large intercellular spaces between them. Some healthy leaves were laid flat on a plate and exposed to the rays of the sun falling perpendicularly on them. By pouring. Fig. 80.—Longitudinal section of leaf-stalk and motile organ, ibh, of one of the leaflet'? of Oxalis oarnea in the day position, p, epidermis of leaf-stalk; //, midrib of leaflet; G (?, vascular bundles ; m, pith of leaf-stalk. fresh water over them the leaves were prevented from becoming too warm. Other leaflets were protected from the direct rays of the sun by means of paper shades. After an hour the marked leaflets were placed in alcohol in order to fix the cell-contents in their natural position. The decolorised leaflets were so transparent that mere observation with transmitted light was sufficient to demonstrate the diff"erent dis-. 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 Lubbock, John, Sir, 1834-1913. London, New York, Macmillan and Co. , Ltd.
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Keywords: ., bookauthorlub, bookcentury1900, bookdecade1900, booksubjectbotany
