. Comparative anatomy of the vegetative organs of the phanerogams and ferns. Plant anatomy; Phanerogams; Ferns. -KT-. fou and 1 Ig. 220. ;ars' old brancli, X 3. The annual rin^s nd bast-plates by concentric lines. The 1 the four plates represent the fibrous ?), from Schleiden, Grundz.; nat. Fig. 224. lig. 225. Fig. 224.—Anisostichus capreolata Bur. Transverse section through and medullary rays are represented in the wood by radial ;!, the bast-1 elongated figures in the peripheral cortex and the dark lines in the lattei bundles; /"the four larger ones. The pith is dotted. Fig. 2
. Comparative anatomy of the vegetative organs of the phanerogams and ferns. Plant anatomy; Phanerogams; Ferns. -KT-. fou and 1 Ig. 220. ;ars' old brancli, X 3. The annual rin^s nd bast-plates by concentric lines. The 1 the four plates represent the fibrous ?), from Schleiden, Grundz.; nat. Fig. 224. lig. 225. Fig. 224.—Anisostichus capreolata Bur. Transverse section through and medullary rays are represented in the wood by radial ;!, the bast-1 elongated figures in the peripheral cortex and the dark lines in the lattei bundles; /"the four larger ones. The pith is dotted. Fig. 225.—Transverse section through a non-identified Bignoniaceous stem (PIconoto size. FIG. 226.—Melloa populifolia Bur. (Bignonia No. 17, Fr. Miiller, Botan. Zeitg. 1866). Transverse section through a branch, X 2. Bast and bast-plates shaded, wood left white. The four first bands of wood, which have remained behind, marked thus ('); medullary sheath shaded radially, pith white. The dotted parts round the medullary sheath are large islands of parenchyma, the subsequent dilatation of which splits up and bursts the wood. i. e. like a ring. The latter is limited from the primary outer cortex by an mter- rupted zone of fibrous bundles. In each internode there are four bundles of this zone {/), which are from the first larger than the rest. They lie always, according to Criiger, in four planes, which alternate regularly with the orthostichies of leaves, and are perpendicular with reference to the straight internode: in transverse section they are arranged crosswise. At the beginning of the secondary growth in thickness, the increase of the wood in the longitudinal bands opposite the four large crosswise fibrous bundles is left ' Walpers, Botan. Zeitg. 1851, p. 297; Wigand, in Flora, /. c; Figures in Wigand, Pharma- cognosic, and Berg. Botan. Zeitg. 1857, Taf. J; Atlas, Taf. VIII. ^ Gaudichaud, Recherches, &c., sur Forganographie, &c., des vegetaux (Mem. presentees a I'Acad
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Keywords: ., bookcentury1800, bookdecad, booksubjectplantanatomy, bookyear1884
