. Dansk botanisk arkiv. Plants; Plants -- Denmark. Fig. 319. Murrayella periclados (Ag.; Schmitz. Part of cree- ping filament with rhizoids and erect branches. (About 35:1). The plant has four pericentral cells and altogether lacks a cortical layer. It increases by means of an apical cell from which flat disc-formed segments are cut off. From these the side-organs issue spirally with a 34 divergence be- fore the segments are divided. As described by Falkenberg the side-organs are of three different types. The most common are- the unbranched, monosiphonous ones (Fig. 318); these occur especiall
. Dansk botanisk arkiv. Plants; Plants -- Denmark. Fig. 319. Murrayella periclados (Ag.; Schmitz. Part of cree- ping filament with rhizoids and erect branches. (About 35:1). The plant has four pericentral cells and altogether lacks a cortical layer. It increases by means of an apical cell from which flat disc-formed segments are cut off. From these the side-organs issue spirally with a 34 divergence be- fore the segments are divided. As described by Falkenberg the side-organs are of three different types. The most common are- the unbranched, monosiphonous ones (Fig. 318); these occur especially in the basal part of the main filaments and on the whole in the less vigorous filaments. The cells in these are about 28 |u thick and 60 \i long. The second type consists of disti- chously ramified branchlets (Fig. 320). The main axis in these branchlets is polysiphonous, while the side- organs are monosiphonous and these occur alternately on both sides of it. Between these two kinds of branchlets an even transition is to be found. As pointed out by Falken- berg it may happen that the monosiphonous, not ramified branchlets have a plurisiphonous base and, on the other hand ramified branchlets occur which are monosi- phonous throughout and further, re- gard ing the ram ification of the branch- lets, an even trans- ition is also pre- sent here as bran- chlets with a single side-branch are found, others with two or more. Finally the third kind of side-organs consists of branches with polysiphonous. 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 Dansk botanisk forening. Kbenhavn : Dansk botanisk forening
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Keywords: ., bookcentury1900, bookcollectio, bookdecade1910, booksubjectplants
