. Dansk botanisk arkiv. Plants; Plants -- Denmark. Fig. 409. Pylaiella fulvescens (Schousb.) Bornet. a, b, cells with chloroplasts and nuclei, c, parts of a fertile filament. (About 350:1.) Sauvageau this takes place in the upper ends of the erect fila- ments, these by means of these branchlets, »crampons« becoming often fixed also in the upper end. The branchlets may attain to a considerable length; they have more or less sinuate walls. They are about 16 // thick, their cells being about four times longer than broad. The cells contain a beautiful and very characteristic chrom- atophore, close


. Dansk botanisk arkiv. Plants; Plants -- Denmark. Fig. 409. Pylaiella fulvescens (Schousb.) Bornet. a, b, cells with chloroplasts and nuclei, c, parts of a fertile filament. (About 350:1.) Sauvageau this takes place in the upper ends of the erect fila- ments, these by means of these branchlets, »crampons« becoming often fixed also in the upper end. The branchlets may attain to a considerable length; they have more or less sinuate walls. They are about 16 // thick, their cells being about four times longer than broad. The cells contain a beautiful and very characteristic chrom- atophore, closely reminding of the one in Zygnema (Figs. 408 a, 409). The chromatophore is stellate; from a dense centre long, thin prolongations protrude in all directions towards the wall of the cells, here often being broadened out to small roundish or oval discs lying closely against the wall. Two stars of chro- matophore are present in each cell; in the longer cells the distance. 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 Dansk botanisk forening. Kbenhavn : Dansk botanisk forening


Size: 1082px × 2309px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookcollectio, bookdecade1910, booksubjectplants