. Dansk botanisk arkiv. Plants; Plants -- Denmark. 108 Dansk Botanisk Arkiv, Bd. 3. Nr. 1. cuius is not always present and in one specimen of mine (Nr. 1317) the mucronated assimilating cells were rare, nearly all had a broadly rounded summit (Fig. 117). The specimens I have collected formed rather large and dense tufts composed of numerous richly ramified branches. At the base the main branches are terete or nearly so but higher up all the branches become quite flattened. They are either repeatedly forked or irregularly ramified (Fig. 115). The colour of the dried plant is greyish to olive-gr
. Dansk botanisk arkiv. Plants; Plants -- Denmark. 108 Dansk Botanisk Arkiv, Bd. 3. Nr. 1. cuius is not always present and in one specimen of mine (Nr. 1317) the mucronated assimilating cells were rare, nearly all had a broadly rounded summit (Fig. 117). The specimens I have collected formed rather large and dense tufts composed of numerous richly ramified branches. At the base the main branches are terete or nearly so but higher up all the branches become quite flattened. They are either repeatedly forked or irregularly ramified (Fig. 115). The colour of the dried plant is greyish to olive-green with a reddish tinge especially in the upper parts. The surface is dull and when seen under a lens finely dotted, this appearance ori- ginating from the closely placed but free assimilating cells. In this respect it differs from the Galaxaura occidentalis, mentioned below, this having a more even and often shiny surface while both plants otherwise show a striking remblance in their habit and where grow- ing together. In the dried specimens the edges of the branches are often somewhat pro- minent giving the branches a chanelled appearance. In my specimens the transverse stri- ations were not much developed some- times not at all; when present they were mostly found towards the summit of the branches (Fig. 115). With regard to the flattening of the branches some differences are present in the various speci- mens. In some (my collection nr. 1317 a) a transverse section of the thallus is nearly oval, while in others (nr. 1657 b) this was oblong linear with quite parallel sides. In specimens pre- served in spirit the branches are also clearly flattened (compare the branch to the right in Fig. 115) but not as much as is the case with the dried specimens; their edges are rounded and they show no trace of being channelled. A transverse section of the thallus shows that the medullary tissue consists of irregularly, subdichotomously ramified filaments running between each other in th
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Keywords: ., bookcentury1900, bookcollectio, bookdecade1910, booksubjectplants
