BIOL-032 | Slides maybe purchase individually or as custom collections. If you wish to purchase 25 or more virtual slides, discounts will be automatically applied according to incremental package sets of 25, 50, 100, 200, or unlimited.
Pine pollen grains, 400X w.m.
Pines are mostly monoecious, having the male and female cones on the same tree, though a few species aresub-dioecious, with individuals predominantly, but not wholly, single-sex. The male cones are small, typically 1-5 cm long, and only present for a short period (usually in spring, though autumn in a few pines), falling as soon as they have shed their pollen. The female cones take 1.5-3 years (depending on species) to mature after pollination, with actual fertilization delayed one year. The seeds are mostly small and winged, and are anemophilous (wind-dispersed), but some are larger and have only a vestigial wing, and are bird-dispersed