Other conifers of the genus Agathis have thick, elliptical leaves, and conifers of the genus Nageia have broad, flat leaves. Cedrus. Taxodium. Female cones loose and open; sporophylls arranged in a loose grouping surrounding the vegetative apex of the stem, with a linear stalk and an expanded apical lobe which may be entire, pinnatifid or deeply lobed on the margins. Genus of plants to which the century plant of tropical america belongs. The largest is the Pine family (232 species), which includes such familiar trees as pine, spruce, fir, and larch. Scientific Name Pinus resinosa Location Bear, Delaware, USA Comments Red Pine Cone (Pinus resinosa) Specimen Condition Live Specimen Body Part Cone The other three deciduous conifer genera are all native to China (and Vietnam in one case), and, curiously, all are monotypic, meaning there is only one species within each genus. The hemlock spruce genus. The Podocarpaceae, by contrast, are a largely tropical family; outside the tropics they occur mostly in the mountains of the southern hemisphere and … Earle, 1996.03.17]. For example, all the spruces belong to a genus with the Latin name of Picea. From the genus description page you will also be able to connect to a species page to view pictures of the native tree species contained in that genus. There are dozens of genus and hundreds of varieties ranging from tiny dwarfs to massive towering Sequoias. Conifers are conspicuous members of the taiga forest biome and have adaptations for … Deciduous Conifers. The other five families are Araucariaceae, Cephalotaxaceae, Phyllocladaceae, Sciadopityaceae and Taxaceae. Pines are trees in the genus Pinus in the family Pinaceae and are the only genus in the order Pinales. Other Conifers. Botanists have classified the conifers by genera which are, fortunately, very useful to foresters who wish to name any kind. Abies alba is the binomial for the European silver fir. … If you want to learn more, see the cookie policy. Download all free or royalty-free photos and vectors. cookie policy. Pine needles grow in clusters on the branch which helps tell these evergreens apart from other conifers. There are a number of significant uses to conifer trees that make them important both ecologically and economically. Read on to discover what makes a pine a pine. Conifers are commonly thought to be synonymous with "evergreen trees," which stay green through the year. Juniperus. Spruce Trees. Clicking on the box with a genus name will connect you to a description of that particular genus. If you look closely at the pictures, you will notice that there are between 2 and 7 needles in a small bundle attached to the twig. †Class Cordaitopsida Paleozoic; strap-shaped leaves, up to 1 metre (3 feet) long, much larger than those of true conifers; both pollen and seed cones were compound and open, each bract Conifer - Annotated classification | Britannica All living conifers are woody plants, and most are trees, the majority having monopodial growth form (a single, straight trunk with side branches) with strong apical dominance. The 615 species of extant conifers are classified in eight families of which 540 belong to the three largest families Pinaceae (231), Podocarpaceae (174) and Cupressaceae (135). // End -->, a subterreanean or emergent trunk clothed with persistent leaf bases, new leaves not coiled but the leaflets coiled like watchsprings, leaflets not articulate at the base; lower leaflets abruptly reduced to a lateral series of paired, short, rigid thorn-like processes, female sporophylls arranged in a loose crown surrounding the vegetative apex of the stem, female sporophylls consisting of a linear stalk and an expanded apical lobe. The word "gymnosperm" comes from the Greek word gymnospermos, meaning "naked seeds". For species not described here, interested readers are referred to the excellent descriptions provided by The World List of Cycads. Evergreen cone-shaped trees, growing needle- or scale-like leaves are called conifers. The Gymnosperms (Conifers, cycads and allies) Welwitschia mirabilis Hook.f. Your Genus Conifers stock images are ready. Sequoiadendron. Others, in coastal locales, have floating seeds that have given them a wide distribution (Jones 1993). The greatest diameter attained by Cycas thouarsii. The tallest is a C… Taxus. Some are in areas with frequent wildfire. botanical: Chamaecyparis nootkatensis 'Pendula'. Following are a few of my favorites. To most of us, all cones are 'pine cones' and in Mexico, all conifers are commonly called 'pinos'. USDA Hardiness Zone: 2-8.