All of these species however, have conspicuous venuloid idioblasts (silica bodies) on laminar surfaces between veins (Sundue, 2009), a character that is lacking in A.
trichochlaenum are 2- pinnate, have indument abaxially along the rachises, and venuloid idioblasts between the veins on both surfaces of the pinnules.
The mesotegmen is parenchymatous with druse idioblasts
, and cells that show variation in shape and size.
The parenchyma presented very abundant crystalliferous idioblasts, containing calcium-oxalate microcrystals.
Mesophyl presented few crystalliferous idioblasts, containing microcrystals, and few polyhedrical crystals of calcium oxalate.
parenchymatous with idioblasts and mucilage cavities.
Cortex parenchymatous, to 2 cm thick, with idioblasts and mucilage
Comparative microscopy of idioblasts
in lemma epidermis of some
with druses or sphaerocrystals may be present, especially when mucilage cells are absent or rare.
The parenchymatous cortex has idioblasts
, abundant mucilage ducts, and oblique, semigirdling leaf traces [ILLUSTRATION FOR FIGURE 5C OMITTED].