Pelargonium carnosum, (L.) L'Hér.

Romero, Giovanna E., 2022, Stem and caudex anatomy of succulent plant species, Adansonia (3) 44 (10), pp. 81-90 : 85

PELARGONIUM CARNOSUM (L.) L’HÉR.

Stem cortex has abundant tannins and some amyloplasts. Wood is diffused fibrous. Axial matrix is formed by: narrow bands of libriform fibers, wide lumen libriform fibers, apotracheal axial parenchyma, and helical, annular and mostly pseudoscalariform secondary walls with simple perforations vessels. Rays are multiseriate ( Fig. 3A, B ). Ray secondary phloem parenchyma is distorted. Pith has abundant tannins and few amyloplasts.

Figures

FIG. 3. — Transverse sections of stems and caudices: A, B, Pelargonium carnosum (L.) L’Hér.; A, stem, wood; B, stem, bands of libriform fibers; C-E, Moringa drouhardii Jum.; C, stem, diffused fibrous wood, lignification in ray parenchyma cells; D, stem, radial section; E, stem, secondary phloem dilatated; F, Oxalis megalorrhiza Jacq., stem, wood; G-I, Adenia glauca Schinz; G, green stem, cortex and phloem fiber caps; H, green stem, parenchymatous wood; I, caudex, parenchymatous wood. Abbreviations: lf, libriform fibers; r, rays; p, parenchyma cells; fp, fiber cap; sp, secondary phloem. Scale bars: 50 µm.