The Botany of Iceland


    THE present instalment of the results of work on the botany of Iceland is devoted to the Cryptogamic flora, and contains an account of the fresh-water diatoms by the late Dr. Ernst 0strup, and a description of the lichen flora and lichen vegetation by Dr. Olaf Galloe. The former comprises a systematic list of species based on the examination of 572 samples collected by different botanists in various parts of the island. The list includes a number of new species and varieties which are figured in the five plates. The author also gives a table indicating the general distribution, and the distribution in the different parts of Iceland, of the 468 forms listed. From this table it appears that 95 per cent, of the Icelandic forms also occur in the rest of Europe; Asia and America come next with about 50 per cent.; comparing Iceland with the Arctic regions, the greatest resemblance is with Greenland, with which it has 41 per cent, in common. A classified list is also given of the species found in hot springs from thirteen localities.

    The Botany of Iceland.

    Edited by Dr. L. Kolderup Rosenvinge Dr. Eug. Warming. Vol. ii., part i. By Ernst Østrup and Olaf Galloe. Pp. 248 + 5 plates. (Copenhagen: J. Frimodt; London: John Wheldon and Co., 1920.)

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    The Botany of Iceland . Nature 106, 530 (1920).

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