. The British Charophyta. Characeae. 74 BRITISH CHAROPHYTA. Knowlton (8) (see Fig. 27 c, d) under the name of Calci- sphccra Lemoni. In all the living, and, with the excep- tion of those from the Carboniferoue, in all the fossil Charophyte-fruits the number of the spk-al-cells is five, and they are invariably coiled sinistrally. In these Devonian organisms the spiral lines are nine or ten in number, and evidently normally they have a dextral twist, though in. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration


. The British Charophyta. Characeae. 74 BRITISH CHAROPHYTA. Knowlton (8) (see Fig. 27 c, d) under the name of Calci- sphccra Lemoni. In all the living, and, with the excep- tion of those from the Carboniferoue, in all the fossil Charophyte-fruits the number of the spk-al-cells is five, and they are invariably coiled sinistrally. In these Devonian organisms the spiral lines are nine or ten in number, and evidently normally they have a dextral twist, though in. 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 Groves, James; Bullock-Webster, George Russell, 1858- joint author. London, The Ray society


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Keywords: ., bookcentury1900, bookdecade1920, bookpublisherlondo, bookyear1920