. Dansk botanisk arkiv. Plants; Plants -- Denmark. F. Børgesen: Phæophyceæ of the Danish W. Indies. 29 in the middle. The union of the filaments is due to a tough mucilage which holds them together. But after boiling the plant for a short time in water the filaments easily separate in such a way that their mode of growth was observable. As the figures (Fig. 18 a, b, c) show the central filaments increase by means of intercalary growth. Each filament termi-. Fig. 18. Castagnea Zosleræ (Mohr) Thur. Summits of filaments showing way of growing. (a, c, about 150: 1; b, about 200: 1). nates with a l
. Dansk botanisk arkiv. Plants; Plants -- Denmark. F. Børgesen: Phæophyceæ of the Danish W. Indies. 29 in the middle. The union of the filaments is due to a tough mucilage which holds them together. But after boiling the plant for a short time in water the filaments easily separate in such a way that their mode of growth was observable. As the figures (Fig. 18 a, b, c) show the central filaments increase by means of intercalary growth. Each filament termi-. Fig. 18. Castagnea Zosleræ (Mohr) Thur. Summits of filaments showing way of growing. (a, c, about 150: 1; b, about 200: 1). nates with a long hair, the cells of which are long and colourless, at the upper end being shorter and shorter towards its base. Here we have the growing point from below which the cells of the main filaments are formed, and above those of the hairs. At their base the hairs have a thin sheath. When this method of growth has continued for a time the end of the filament is bent out laterally and a side branch similar. 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: 1454px × 1718px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectio, bookdecade1910, booksubjectplants
