Mycoflora in Exhumed Seeds of Opuntia tomentosa and Its Possible Role in Seed Germination
Figure 4
Micrographs of Opuntia tomentosa seeds after two years of laboratory storage: (a) whole seed showing the funicular girdle separated from the remaining funicular seed cover; (b) cracks in the hilum-micropylar region; (c) degradation of the surface layers (cuticle) of the funicular flanks. Ff: funicular flanks, Fg: funicular girdle, HMR: hilum-micropylar region, Vb: vascular bundles.
