Androstachys johnsonii Prain [family EUPHORBIACEAE], in Bull. Misc. Inform., Kew (); – (). —Hutchinson in F.T.A. 6, 1: Androstachys johnsonii is a tree that can grow up to 30 metres tall. The straight, cylindrical bole can be free of branches for up to 15 metres and 60 – 90cm in. Androstachys johnsonii Prain. Higher Classification. Dicotyledons. Family. PICRODENDRACEAE. Synonyms. Androstachys subpeltatis (Sim) Phillips, Weihea.
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The rates of shrinkage are moderate, from green to oven dry 5. Balkema, Cape Town, South Africa. The fruit is bright green at first and ripens to a light androstacgys or reddish brown and is covered in fine bristle-like hairs. It is valued for furniture for both indoor and outdoor uses, and for sculptures and turnery.
World checklist and bibliography of Euphorbiaceae with Pandaceae. Leaves decussately opposite, simple and entire; stipules initially fused into a sheath up to 3.
Several diterpenoid constituents have been isolated from the heartwood. Natural Durability Jonnsonii durable to decay; without preservative treatment.
Female flowers are yellow and are at the end of a long, white hairy stalk. Some drying defects such as end-checking, splitting, cupping and springing amy occur. Gluing Glues well if basic gluing technical rules are followed. In south-eastern mainland Africa, trees flower in October—November and ripe fruits can be found in November to March.
The heartwood is light brown to reddish brown, often with darker veining, it is not clearly demarcated. Livestock browses on the leaves. Trees of southern Africa. Androstachys androstacyys Wissenschatlicher Name: Volume 9, part 4. There are 65 citation in scholarly androstachjs related to Androstachys johnsonii Prain.
Grain Straight; grain has no particular influence on drying, machining and finishing qualities. It is resistant to impregnation with preservatives.
Trees are often surrounded by numerous seedlings. These differ in having digitately compound leaves, stipular sheaths fused to the petioles, more hairy anthers and pointed fruits, and have been referred to a separate genus Stachyandraalthough this is questionably distinct. Wood-anatomical description IAWA hardwood codes: Herkunft x – 7k – gif www. However, as long as stands of sufficient extent exist, it will locally remain of importance for heavy and durable construction.
Vessels per mm2 more than 20 very abundant. Click on “show more” to view them. This species is especially suited for all the uses with risks of permanent or long-lasting humidification. Resistant to termites attack. Androstachys johnsonii 1, apex of twig with male flowers; 2, apex of twig with female flowers; 3, fruiting twig.
Its timber is of economical interest. Crossties 8 – Maderas latinoamericas. Tropical timbers of the world. Lebombo ironwood Scientific classification Kingdom: Androstachys johnsonii Androstachys johnsonii x – 4k – jpg www.
However, in it was one of the most exploited timber species in Mozambique. Monotypic Malpighiales genera Picrodendraceae Trees of Africa. Handcraft 66 – Maderas latinoamericanas.
Brown-colored deposits in heartwood vessels. Johnson, a 19th-century Director of Agriculture in Mozambique. Color The sapwood is yellowish white. Drying is moderately difficult. BoxAH Wageningen, Netherlands. The flowers are wind-pollinated.
andfostachys There are 5 Wikipedia citations related to Androstachys johnsonii Prain. Citation in scholarly articles. Evergreen to deciduous, dioecious, small to medium-sized tree up to 25 —35 m tall; bole branchless for up to 15 m, usually straight and cylindrical, up to cm in diameter; bark surface longitudinally fissured, blackish grey; twigs angular, jointed, densely whitish to greyish woolly hairy.
The grain is usually straight, occasionally wavy, texture fine and even. The Matibane Forest Reserve, johnsnoii in Mozambique, has an area of about ha, for a large part covered by Androstachys johnsonii.
The wood of these species is reportedly also hard and durable, and occasionally used in construction. Androstachys johnstonii grows very slowly.