. The botany of Iceland. Botany -- Iceland. a a a a b b b Fig. 10. Polijtrichnm sexangiilare Floercke var. tencUnni. a. in a damp, and b, in a dry condition (X 6). In lava clefts near Thingvellir and in deep lava clefts on Reykjarheidi (at an altitude of about 250 metres) it was found abundantly in several places in association with several other Alpine species, for instance Gymnomitrium concinnalum, G. varians, Pleuroclada albescens and Pohlia commutata. The occurrence of this species in such localities is un- doubtedly connected with the fact that there the conditions pertaining. Please note

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. The botany of Iceland. Botany -- Iceland. a a a a b b b Fig. 10. Polijtrichnm sexangiilare Floercke var. tencUnni. a. in a damp, and b, in a dry condition (X 6). In lava clefts near Thingvellir and in deep lava clefts on Reykjarheidi (at an altitude of about 250 metres) it was found abundantly in several places in association with several other Alpine species, for instance Gymnomitrium concinnalum, G. varians, Pleuroclada albescens and Pohlia commutata. The occurrence of this species in such localities is un- doubtedly connected with the fact that there the conditions pertaining. 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 Kolderup Rosenvinge, L. (Lauritz), 1858-1939; Warming, Eugenius, 1841-1924. Copenhagen, J. Frimodt

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Keywords: ., bookcentury1900, bookcollectionbiod, bookdecade1910, bookyear1918