Descripteur : ground parenchyma of the central cylinder

Type du descripteur : categorical

Only the central ground parenchyma should be described.
The outer ground parenchyma is more or less always spherical or crowded by the fvb.

../images/Bactris_plumeria_Huge_cell.jpg

Huge cells

../images/Copernicia_baileyana_elongate.jpg

compact parenchyma with elongated cell

../images/Borassus_10_1_sc.jpg

ground parenchyma cells

../images/Hyphaene_thebaica_spheroid.jpg

spheroid and compact ground parenchyùa

../images/licualagrandis8_sc_copie.jpg

cells slightly elongated, lobed with a random (rhombohedral) shape

../images/Mauritia_flexuosa_stellate_copie.jpg

trabecular

../images/Lodoicea_maldivica_meshwork_2.jpg

cells slightly elongated, lobed with a random (rhombohedral) shape

../images/Phoenix_dactylifera_ffv_1.jpg

spheroid an compact ground parenchyma

../images/Acrocomia_crispa_rodlike.jpg

Rod-like

../images/ground_par_stellate.jpg

ground parenchyma stellate


spheroid to slightly elongated (length / width < 3–4) cells (∅ < 150 µm) and compact [sometimes few and little lacunae in old stems

../images/Hyphaene_thebaica_spheroid.jpg

spherical (regularly isodiametric)

../images/Phoenix_dactylifera_ffv_1.jpg

spheroid (regularly isodiametric with few lacunae)

cells slightly elongated (length / width < 3–4), lobed with a random (rhombohedral) shape (maximal length < 200 µm) and irregular meshwork (lacunae < 200 µm)

angular air-lacunae

../images/Lodoicea_maldivica_meshwork_1.jpg

meshwork of rhombohedral to lobed cells

../images/Lodoicea_maldivica_meshwork_2.jpg

meshwork of rhombohedral to lobed cells

../images/licualagrandis7_copie.jpg

meshwork of rhombohedral to lobed cells

../images/licualagrandis8_sc_copie.jpg

meshwork of rhombohedral to lobed cells

rod-like cells (length > 200 µm; length / width > (3)–5) and more or less regular and large meshwork (lacunae > 250 µm)

long and parallel cells

../images/Acrocomia_crispa_rodlike.jpg

rod-like cells (length > 200 µm, length / width > 3-5) AND regular and large meshwork (lacunae > 250 µm)

trabecular (= stellate) with a regular meshwork (spheroid lacunae > 250 µm)

a three-dimensional meshwork consisting of narrow, mostly uniseriate threads of parenchymatous cells, with abundant intercellular spaces betwenn them (like a net).

spheroid air-cavity

from C. Metcalfe. Cyperaceae. In C. Metcalfe, editor, Anatomy of the monocotyledons, volume 5, page 597, Oxford, 1971. Oxford University Press.

../images/Mauritia_flexuosa_stellate_copie.jpg

trabecular (=stellate) + air-cavity = spongious parenchyma

../images/ground_par_stellate.jpg

trabecular (= stellate) with a regular meshwork (lacunae > 250 µm)

huge cells (∅ > 150 µm) [potential few and irregular lacunae]

../images/Bactris_plumeria_Huge_cell.jpg

huge cells

appendicular parenchyma connecting fvb

In Mauritia-Type stems, a specific ground parenchyma may occur. This parenchyma appears to connect fvb of the central zone together.

../images/Heterospatha_elata_FTBG_64719F_2_7_5_sc.jpg

appendicular parenchyma connecting fvb


Fait partie des groupes