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Callitris is a genus of coniferous trees in the Cupressaceae (cypress family). There are 16 recognized species in the genus, of which 13 are native to Australia and the other three (C. neocaledonica, C. sulcata and C. pancheri) native to New Caledonia. [1]
The tree bark is dark red or brown and has deep grooves. The seeds are found in cones about 2 cm in length, with eight scales and five seeds with tiny resinous vesicles. With the tree being a hybrid, its seeds are sterile. Over time, the cones shrink dry and turn gray or chocolate brown and then have a diameter of 1 cm. [12]
Bald cypress "knees" are often sold as souvenirs, made into lamps, or carved to make folk art. [35] Monterey cypresses are often visited by tourists and photographers, particularly a tree known as the Lone Cypress. [36] The fleshy cones of Juniperus communis are used to flavour gin. Native Americans and early European explorers used Thuja ...
The male cones are 3–5 mm long and release highly allergenic pollen in late winter. The cones of C. sempervirens can withstand years of being sealed and are known to perform serotiny. [8] The tree is moderately susceptible to cypress canker, caused by the fungus Seiridium cardinale, and can suffer extensive dieback where
Cypress is a common name for various coniferous trees or shrubs from the Cupressus genus of the Cupressaceae family, typically found in warm-temperate and subtropical regions of Asia, Europe, and North America.
The cones, maturing biannually, have 4 (occasionally 6) scales, and resemble the cones of Cupressus lusitanica (another species which can show foliage in flat sprays), except being somewhat smaller, typically 8–14 mm (5 ⁄ 16 – 9 ⁄ 16 in) in diameter; [4] each scale has a pointed triangular bract about 1.5–2 mm long, again similar to ...
The leaves are scale-like, 1–2 mm long, up to 5 mm long on strong lead shoots; young trees up to about 5–10 years old have juvenile foliage with soft needle-like leaves 3–8 mm long. The seed cones are globose, 8–15 mm long, with 6–10 scales (usually 8), green, maturing dark brown about 24 months after pollination. The cones open at ...
The cones remain closed for many years, only opening after the parent tree is killed in a wildfire, thereby allowing the seeds to colonize the bare ground exposed by the fire. The male cones are 3–5 mm (0.12–0.20 in) long, and release pollen in February/March. Typically cones of H. goveniana are smaller than those of H. macrocarpa.