. Comparative anatomy of the vegetative organs of the phanerogams and ferns. Plant anatomy; Phanerogams; Ferns. 528 SECONDA R}' CHA NGES. e. g. Quercus, Corylus, Carpinus, Pyrus, Juglans regia, Sambucus nigra \ Daphne Mezereum, Rhaninus Frangula, Simaruba officinalis ^ Ulmus ^ Glycine sinensis, Quillaja, Olea europcea, and Populus pyramidalis. In these cases the fibres of each group are seldom radially arranged; their arrangement as seen in cross-section is usually irregular. (c) The bast of numerous other Dicotyledons contains fibres scattered through- out the soft bast, singly or in small gr
. Comparative anatomy of the vegetative organs of the phanerogams and ferns. Plant anatomy; Phanerogams; Ferns. 528 SECONDA R}' CHA NGES. e. g. Quercus, Corylus, Carpinus, Pyrus, Juglans regia, Sambucus nigra \ Daphne Mezereum, Rhaninus Frangula, Simaruba officinalis ^ Ulmus ^ Glycine sinensis, Quillaja, Olea europcea, and Populus pyramidalis. In these cases the fibres of each group are seldom radially arranged; their arrangement as seen in cross-section is usually irregular. (c) The bast of numerous other Dicotyledons contains fibres scattered through- out the soft bast, singly or in small groups, as seen in cross-section; traced. l-IG. 214.—Spannannia Africana; branch, transverse section (80). Below Jt—/i is wood; aijove A—A is first the cambial zone, then higher up and towards the outside is the layer of bast, the outer limit of which lies at *; rn larger medullary rays; the single radial rows marked X X are the smaller ones. Alternating with the medullar}' rays are narrow strands of bast, consisting of alternate groups of fibres and of soft bast with narrow carities. On the external boundary of the bast are sacs or cells with stellate crystals, e remains of the epidermis; / periderm; s remains of a sac containing mucilage, after the mucilage has been washed out. longitudinally they are also isolated, or form narrow strands, anastomosing with others at an acute angle; sometimes they are distributed over the tranverse section in large numbers, as in the external zone of basl of Ladenbergia magnifolia, and in the bast of most Cinchonas*, also in Ficus elastica, Morus, and Celtis%- Von Mohl, /.(-. p. 879. =" Berg, Atlas, Taf. 28, &c. Hartig, /. r. p. 466. * Compare Berg, Atlas, Taf. 29-35. •' Ilartig, Forstl. Culturpfl. p. 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 Bar
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Keywords: ., bookcentury1800, bookdecad, booksubjectplantanatomy, bookyear1884
