. Botanisk tidsskrift. Botany; Plants; Plants. 245 — In the specimens found in more sheltered places or in deep sea the cells are larger, often cylindric and more loosely connected. They are very like the figures 11 and 12 of Kuckuck. The small lens-cells are here more seldom. As mentioned above, f. Crustacea is found in exposed loca- lities growing on rock and coral reefs at about the surface of the sea where it is constantly at the mercy of the waves; in such localities it can be found as rather large crusts covering the rocks. On the other hand, f. typica when growing in shallow water is fo
. Botanisk tidsskrift. Botany; Plants; Plants. 245 — In the specimens found in more sheltered places or in deep sea the cells are larger, often cylindric and more loosely connected. They are very like the figures 11 and 12 of Kuckuck. The small lens-cells are here more seldom. As mentioned above, f. Crustacea is found in exposed loca- lities growing on rock and coral reefs at about the surface of the sea where it is constantly at the mercy of the waves; in such localities it can be found as rather large crusts covering the rocks. On the other hand, f. typica when growing in shallow water is found in more sheltered localities or in deep sea down to a depth of about 30 meters or more. The species is common at the shores of the Fig. 3. Valonia utricularis (Roth) Ag., f. Crustacea Kuck. A little part of tbe plant pictured in fig. 2. It shows the ar- rangement of the small lentiform cell along the walls of the cells. (70:1). Yalonia Ægagropila G. Ag. C. Agardh, Species Algarum, p. 429. J. Agardh, Till Algernes Syste- matik, VIII, Siphoneæ, p. 99. Kützing, Spec. Algarum, p. 507; Tab. Phycol. , tab. 87; fig. 1. P. Kuckuck, Über den Bau und die Fortpflanzung von Halicystis Aresch. und Valonia Ginn. (Bot. Zeit. 1907). Valonia utricularis forma Ægagropila Hauck, Meeresalgen, p. 469. The West Indian plant seems to agree very well with the forms from the Mediterranean as described by Kuckuck. I have only found small lentiform cells and they were very seldom : those I have seen had a short and broad rhizome, very like the clamps described later in Struvea. The West Indian form agrees for the rest very well with the specimens pictured by Kuckuck, , fig. 18. As already pointed out in mentioning Valonia macrophysa, it is only from the observations of Kuckuck that I consider this plant as a special species and not as a form of Valonia utricularis as Hauck has done. This species occurs in shallow water in a locality sheltered by coral reef on the south coast
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