Fig. 4
From: Investigation and research on germplasm resources of Lonicera oblata in China

SEM images of pollens of Lonicera oblata. Note: 1, pollen population view, scale bar: 100 μm. 2 and 3, pollen from different perspectives, scale bar: 30 μm. 4, The surface of the pollen exine is covered with spiky and perforated structures, scale bar:5 μm.