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The cone of Pinophyta (conifer clade) contains the reproductive structures. The woody cone is the female cone, which produces seeds. The male cone, which produces pollen, is usually ephemeral and much less conspicuous even at full maturity. The name "cone" derives from Greek konos (pine cone), which also gave name to the geometric cone.
Isopogon anethifolius, Maranoa Gardens Infructescence of Isopogon anemonifolius. Isopogon, commonly known as conesticks, conebushes or coneflowers, [3] is a genus of about forty species of flowering plants in the family Proteaceae, and are endemic to Australia.
A strobilus (pl.: strobili) is a structure present on many land plant species consisting of sporangia-bearing structures densely aggregated along a stem.Strobili are often called cones, but some botanists restrict the use of the term cone to the woody seed strobili of conifers.
Podocarpus (/ ˌ p oʊ d ə ˈ k ɑːr p ə s / [2]) is a genus of conifers, the most numerous and widely distributed of the podocarp family, the Podocarpaceae. Podocarpus species are evergreen shrubs or trees, usually from 1 to 25 m (3 to 82 ft) tall, known to reach 40 m (130 ft) at times.
Pollen cones with 2-6 pairs of 2-4 pollen sacked sporophylls. Seed cones are ellipsoid, typically 9 to 14 mm (0.35 to 0.55 in) long, and mature and open the first year. The thin woody cone scales number from 4-6 pairs and are persistent and overlapping, with an oblong shape, they are also basifixed. The central 2-3 pairs of cone scales are fertile.
The cones become woody as they mature. The cones mostly remain closed on the trees for many years, opening only after being scorched by a wildfire; this then releases the seeds to grow on the newly cleared burnt ground. [citation needed] They open at four very thick valves that correspond to the four scales. [1] Each cone produces few seeds.
The cones are ovoid, massive, 15–27 cm (6– 10 + 3 ⁄ 4 in) long and 8–14 cm (3 + 1 ⁄ 4 – 5 + 1 ⁄ 2 in) broad and up to 2 kg (4.4 lb) weight when closed, green at first, ripening yellow-brown when 26–28 months old, with very thick, woody scales, typically 30–60 fertile scales.
Chamaecyparis eureka has been placed in the genus Chamaecyparis, based on the morphology of the seed cones, which differ significantly in the important characters from cone of related genera Cupressus and Fokienia. The general structure is that of a woody cone borne on the tip of a leafy branch; the cones are elongated to globose in overall shape.