Sentence examples for adaxial from inspiring English sources
adjective
On the side that is towards the axis or central line, usually on the upper side.
Sporangia are positioned on the upper (adaxial) surface of the leaf (sporophyll).
The upper portion of the buttress develops a meristem on the side facing the stem (adaxial meristem).
Each leaf is actually a sporophyll, bearing either a microsporangium or a megasporangium which is embedded in its base on the adaxial side.
If the adaxial meristem is long-lived (Figure 10), long flat leaves in the same plane as the stem are formed (Iris; Iridaceae); if short-lived (Figure 10), flat leaves with short cylindrical tips develop (snake plant, Sansevieria trifasciata; Agavaceae).
Growth at this adaxial meristem forms the flattened leaf with the radial (cylindrical) leaf tip typical of the monocotyledons.
The sporangia (spore cases) occur singly on the adaxial side (the upper side facing the stem) of the leaf.
Another distinctive feature in Selaginella is the presence of an unusual structure on the adaxial side of a leaf; this is the ligule, a peculiar tonguelike outgrowth from the leaf surface near the leaf base.
