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Explore the people, places, events, achievements, struggles and stories that shaped our journey.
Movements, leaders, victories and the continuing fight for equality.
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In 1968 Shirley Chisholm became the first Black woman elected to the United States Congress. In 1972 she launched a campaign for the Democratic presidential nomination, breaking another political barrier.
MORE →Reflects the personal views, recollections, and perspective of the author, Mike Davis.
This is a personal recollection on the Move fire on May 13, 1985
| Callitris Temporal range: [1]
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| Callitris glaucophylla | |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Gymnosperms |
| Division: | Pinophyta |
| Class: | Pinopsida |
| Order: | Cupressales |
| Family: | Cupressaceae |
| Subfamily: | Callitroideae |
| Genus: | Callitris Vent. |
| Type species | |
| Callitris rhomboidea | |
| Species | |
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See text | |
| Synonyms[2] | |
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Callitris is a genus of coniferous trees in the cypress family, Cupressaceae. 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.[2] Traditionally, the most widely used common name is cypress-pine,[4] a name shared by some species of the closely related genus Actinostrobus.[5] Alongside Eucalyptus and Acacia, Callitris is one of the dominant tree genera in Australia.[6][7]
They are small to medium-sized trees or large shrubs, reaching 5–25 m (16–82 ft) tall (to 40 m (130 ft) in C. macleayana). The leaves are and scale-like, but young seedlings have needle-like leaves; in C. macleayana, needle-like leaves are found mixed with scale leaves throughout the tree's life. The scales are arranged in six rows along the twigs, in alternating whorls of three (often in whorls of four in C. macleayana).
The male cones are small, 3–6 mm (0.12–0.24 in) long, and are located at the tips of the twigs. The female cones start out similarly inconspicuous, maturing in 18–20 months to 1–3 cm (0.39–1.18 in) long and wide, globular to ovoid (acute in C. macleayana), with six overlapping, thick, woody scales, arranged in two whorls of three (often 8 scales in C. macleayana). The cones remain closed on the trees for many years, opening only after being scorched by a bushfire; this then releases the seeds to grow on the newly cleared burnt ground.
The genus is divided into two sections, with the atypical C. macleayana in sect. Octoclinis, and all the other species in sect. Callitris. Some botanists treat C. macleayana in a separate genus, as Octoclinis macleayana. C. macleayana is also distinct in occurring in rainforest on the east coast of Australia; the other species all grow on dry sites.
The closest relative of Callitris is Actinostrobus from southwest Western Australia, which differs in its cones having several basal whorls of small sterile scales. A 2010 study of Actinostrobus and Callitris places the three species of Actinostrobus within an expanded Callitris based on analysis of 42 morphological and anatomical characters.[8]
In 2010, early Oligocene fossilised foliage and cones of Callitris were unearthed near the Lea River in Tasmania. The fossils were given the name Callitris leaensis and represent the oldest known representative of the genus.[9]
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The genus includes the following species:[2]
The following names are of doubtful validity:[12]
The wood of cypress-pines is light, soft and aromatic. It can be easily split and resists decay; cypress-pine is also termite resistant. It is used to make furniture, indoor and outdoor paneling, and fence posts. Cypress-pines are occasionally planted as ornamental trees, but their use is restricted by the high risks imposed by their very high flammability in bushfires.
Previously a plantation of C. intratropica was established outside of Darwin for use in house construction.[14] After Cyclone Tracy it was realised that the timber did not resist strong winds and the plantation was abandoned. The trees are now used for the production of a blue essential oil, rich in guaiol and chamazulene (the blue compound). A number of therapeutic effects are attributed to the essential oil, including antimicrobial and anti-inflammatory effects.
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Source: Wikipedia. Article content is retrieved live through the MediaWiki API.
Callitris is a genus of coniferous trees in the cypress family, Cupressaceae. 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. Traditionally, the most widely used common name is cypress-pine, a name shared by some species of the closely related genus Actinostrobus. Alongside Eucalyptus and Acacia, Callitris is one of the dominant tree genera in Australia.
Callitris endlicheri, the black cypress pine, is a species of conifer in the cypress family, Cupressaceae, that is native to eastern Australia.
Callitris pancheri is a species of conifer in the cypress family, Cupressaceae. It is endemic to New Caledonia, where it occurs in small, scattered population along rivers. It used to be placed in its own genus Neocallitropsis but molecular phylogenetic analysis indicated that it was nested within Callitris, but only when the New Caledonian species C. sulcata (to which it is most closely related) is included. It is a coniferous tree growing to 2–10 metres (7–33 ft) tall. The leaves are awl-shaped, 1 centimetre (0.4 in) long, arranged in eight rows in alternating whorls of four; in overall appearance, the foliage is superficially similar to some species of Araucaria, though they are only very distantly related; in Araucaria the leaf arrangement is spiral, not in whorls. Callitris pancheri is dioecious, with separate male and female trees; the seed cones are 1.5–2.0 cm (0.6–0.8 in) long, with eight woody scales arranged in two whorls of four.
Callitris columellaris is a species of coniferous tree in the cypress family, Cupressaceae, native to most of Australia. Common names include white cypress, white cypress-pine, Murray River cypress-pine, Bribie Island pine and northern cypress-pine. Callitris columellaris has become naturalised in Hawaii and in southern Florida.
Before the 1921 destruction of Tulsa’s Greenwood District, Black residents had created a remarkable center of business and community life. The district included stores, professional offices, entertainment venues and homes owned by Black citizens. Understanding Greenwood means learning what was built—not only what was burned.
MORE →Brown v. Board of Education in 1954.
