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 ...
A long-standing mystery surrounding a fundamental process in plant biology has been solved by a team of scientists at the University of California, Davis. The group's ground-breaking discovery that a ...
EVEN in these days of specialisation, no real botanist dismisses the Gymnosperms from his field of study. They still possess an inherent interest, although for a hundred years they have been classic ...
A gradient (red) in the concentration of auxin, a plant hormone, determines that only one of the eight undifferentiated nuclei in a plant's embryo sac will become an egg. (In this image, a large ...
A new University of Colorado at Boulder study involving a "living fossil plant" that has survived on Earth for 130 million years suggests its novel reproductive structure may be a "missing link" ...