General introduction to the gymnosperms, the group of vascular plants whose seeds are not enclosed by a ripened ovary (fruit).
Basic information (sometimes only a name) for all species and higher-ranked taxa of the gymnosperms, including conifers, cycads, and their allies. Includes many images.
General description with photos of selected representatives of the included families and genera.
Resources, evaluation, books, nursery sources, description, and identification. Includes original keys to major coniferous genera.
Key, descriptions of all genera and species, images, and range maps.
Includes photographs and information on conifers from around the world, gymnosperm taxonomy, and scientific articles.
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