spore_surface_smooth
smooth
consists of two layers: Layer 1 - mucilaginous, short-lived, hyaline, (0.6-)1.6(-2.5) µm thick, usually completely sloughed in mature specimens, rough upper surface, Layer 2 - laminate, smooth, pale yellow (3A3) to grayish yellow (3B6), (1.8-)2.6(-5.5) µm thick, consisting of pliable laminae, each (0.5-)1.0(-1.4) µm thick, easily separating from each other even in slightly crushed spores
Rhizophagus arabicus
Rhizoglomus arabicum