Pine Mature Staminate Cone, l.s., 12 µm Microscope Slide
Pinus male strobilus. 30-1436 shows mature cone with central axis, microsprophylls and pollen. 30-1430 shows young cone with sporogenous tissue.

Pinus male strobilus. 30-1436 shows mature cone with central axis, microsprophylls and pollen. 30-1430 shows young cone with sporogenous tissue.