Advances in Horticultural Science, Vol. 32, No. 4 (2018), pp. 549-556 (8 pages) Moringa oleifera is a tropical tree cultivated in many countries. This species has acquired a great importance in human ...

An electron microscope image, colorized, shows different structures of pollen grains, including sunflower, morning glory and primrose. Dartmouth Electron Microscope Facility If pollen allergies are ...

You may not like bees, but you don’t want to imagine a world without them. Although bee populations began to decline as early as the mid-20th century, scientists did not become alarmed about the ...

Smithsonian researcher Ingrid Romero studies fossil pollen to reconstruct ancient climates and predict future changes Erin Wunderlich Researcher Ingrid Romero holds a case full of pollen slides at the ...

Pollen grains are far more than allergens — they are also nature’s time capsules, preserving clues about Earth’s past environments for millions of years. Pollen’s tough outer shell enables it to ...

In the flowering plant world, reproduction means an intricate succession of events. It begins when a pollen grain that carries the sperm cells lands on the top of the pistil, the female reproductive ...

Editor’s note: This story was originally published by Yale Environment 360. It appears here as part of the Climate Desk collaboration. Last June, Aaron Flansburg felt the temperature spike and knew ...

Background and AimsTapiscia sinensis (Tapisciaceae) is a functional androdioecious species with both male and hermaphroditic individuals, and fruit ripening overlaps with flowering in the ...

One hundred years ago, naturalists and other outdoor enthusiasts had the foresight to collect and preserve natural specimens unique to the Great Basin. Those collections have been entrusted to the ...