International Journal of Plant Sciences, Vol. 159, No. 2 (Mar., 1998), pp. 358-366 (9 pages) Vegetative shoots, ovulate cones, and putative seeds of Conewagia longiloba gen. et sp. nov., a fossil ...
Robert Brown (1827) recognized the distinction between the two major classes of seed plants on the basis, respectively, of exposed ovules, which receive pollen directly, and enclosed ovules, which do ...
“Prune a conifer?” you ask. Well, as Dylan Thomas said, we need “to begin at the beginning.” Conifers are cone-bearing trees that produce tiny pollen cones in spring followed later by more substantial ...
I had chosen a dispersed camping site on the Uncompahgre Plateau for its proximity to a small reservoir and a large meadow. But when I drove into the site, I found it was littered, not with refuse, ...
Araucaria heterophylla (A. excelsa) or Norfolk Island pine tree is not actually a pine. This open and airy conifer (cone-bearing tree) is a member of the ancient Araucariaceae family. The Norfolk ...