Premise of research. Family relationships in the monocot order Liliales have been revised recently, so that the order now consists of 10 families of geophytes and climbers, with unusually diverse ...

Plant Systematics and Evolution, Vol. 217, No. 1/2 (1999), pp. 81-99 (19 pages) Some aspects of pollen cytology at dispersal were studied in 12 species of gymnosperms. The pollen grains differed in: 1 ...

In plants, pollen- and seed-dispersal distributions are characteristically leptokurtic, with significant consequences for spatial genetic structure and nearest-neighbour mating. However, most studies ...

Contemporary pollen flow in forest plant species is measured by the probability of paternal identity (PPI) for two randomly sampled offspring, drawn from a single female, and contrasting that with PPI ...

Pollen grains may be small but they have a big job. Delivering a sperm to an egg is a little more complicated when the parents don't move around. For plants, pollen success means reaching a receptive ...

The collapse of honeybee colonies across North America is focusing attention on the honeybees' vital role in the survival of agricultural crops, and a new study shows insect pollinators have likely ...

SNOWBIRD, Utah — Like so many people, Catasetum orchids get rough because they’re bent out of shape. Male flowers in this tropical genus don’t wait for a visiting bee to load up on pollen by nuzzling ...

If you live anywhere in the Seacoast area, you can’t help but have noticed the pollen collecting on the surface of local ponds and puddles, along roads, on our cars and coating screen windows. I ...