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''Manilkara bidentata'' is a species of ''
Manilkara ''Manilkara'' is a genus of trees in the family Sapotaceae. They are widespread in tropical and semitropical locations, in Africa, Madagascar, Asia, Australia, and Latin America, as well as various islands in the Pacific and in the Caribbean. ...
'' native to a large area of northern South America, Central America and the Caribbean. Common names include bulletwood, balatá, ausubo, massaranduba, quinilla, and (ambiguously) " cow-tree".


Description

The balatá is a large
tree In botany, a tree is a perennial plant with an elongated Plant stem, stem, or trunk (botany), trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only woody plants with secondar ...
, growing to tall. The
leaves A leaf ( : leaves) is any of the principal appendages of a vascular plant stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, ste ...
are alternate, elliptical, entire, and long. The
flower A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants (plants of the division Angiospermae). The biological function of a flower is to facilitate reproduction, usually by providing a mechanis ...
s are white, and are produced at the beginning of the rainy season. The
fruit In botany, a fruit is the seed-bearing structure in flowering plants that is formed from the ovary after flowering. Fruits are the means by which flowering plants (also known as angiosperms) disseminate their seeds. Edible fruits in particul ...
is a yellow
berry A berry is a small, pulpy, and often edible fruit. Typically, berries are juicy, rounded, brightly colored, sweet, sour or tart, and do not have a stone or pit, although many pips or seeds may be present. Common examples are strawberries, raspb ...
, in diameter, which is edible; it contains one (occasionally two)
seed A seed is an Plant embryogenesis, embryonic plant enclosed in a testa (botany), protective outer covering, along with a food reserve. The formation of the seed is a part of the process of reproduction in seed plants, the spermatophytes, includ ...
(s). Its
latex Latex is an emulsion (stable dispersion) of polymer microparticles in water. Latexes are found in nature, but synthetic latexes are common as well. In nature, latex is found as a milky fluid found in 10% of all flowering plants (angiosperms ...
is used industrially for products such as
chicle Chicle () is a natural gum traditionally used in making chewing gum and other products. It is collected from several species of Mesoamerican trees in the genus ''Manilkara'', including '' M. zapota'', '' M. chicle'', '' M. staminodella'', and '' ...
.


Uses

The
latex Latex is an emulsion (stable dispersion) of polymer microparticles in water. Latexes are found in nature, but synthetic latexes are common as well. In nature, latex is found as a milky fluid found in 10% of all flowering plants (angiosperms ...
is extracted in the same manner in which sap is extracted from the
rubber tree ''Hevea brasiliensis'', the Pará rubber tree, ''sharinga'' tree, seringueira, or most commonly, rubber tree or rubber plant, is a flowering plant belonging to the spurge family Euphorbiaceae originally native to the Amazon basin, but is now pan ...
. It is then dried to form an inelastic rubber-like material. It is almost identical to
gutta-percha Gutta-percha is a tree of the genus ''Palaquium'' in the family Sapotaceae. The name also refers to the rigid, naturally biologically inert, resilient, electrically nonconductive, thermoplastic latex derived from the tree, particularly from ' ...
(produced from a closely related
southeast Asia Southeast Asia, also spelled South East Asia and South-East Asia, and also known as Southeastern Asia, South-eastern Asia or SEA, is the geographical United Nations geoscheme for Asia#South-eastern Asia, south-eastern region of Asia, consistin ...
n tree), and is sometimes called ''gutta-balatá''. Balatá was often used in the production of high-quality
golf ball A golf ball is a special ball designed to be used in the game of golf. Under the rules of golf, a golf ball has a mass no more than , has a diameter not less than , and performs within specified velocity, distance, and symmetry limits. Like go ...
s, to use as the outer layer of the ball. Balatá-covered balls have a high spin rate, but do not travel as far as most balls with a
Surlyn An ionomer () ('' iono-'' + ''-mer'') is a polymer composed of repeat units of both electrically neutral repeating units and ionized units covalently bonded to the polymer backbone as pendant group moieties. Usually no more than 15 mole percent ...
cover. Due to the nondurable nature of the material the golf club strikes, balatá-covered balls do not last long before needing to be replaced. While once favored by professional and low-handicap players, they are now obsolete, replaced by newer Surlyn and
urethane Urethane may refer to: *Ethyl carbamate, a chemical compound which is an ester of carbamic acid *Polyurethane, a polymer composed of a chain of organic units joined by carbamate (urethane) links *Carbamate In organic chemistry, a carbamate is a ...
technology. Today, Brazil is the largest producer of Massaranduba wood, where it is cut in the Amazon rainforest. The tree is a
hardwood Hardwood is wood from dicot trees. These are usually found in broad-leaved temperate and tropical forests. In temperate and boreal latitudes they are mostly deciduous, but in tropics and subtropics mostly evergreen. Hardwood (which comes from ...
with a red heart, which is used for
furniture Furniture refers to movable objects intended to support various human activities such as seating (e.g., stools, chairs, and sofas), eating (tables), storing items, eating and/or working with an item, and sleeping (e.g., beds and hammocks). Fur ...
and as a construction material where it grows. Locals often refer to it as bulletwood for its extremely hard wood, which is so dense that it does not float in water. Drilling is necessary to drive nailed connections. In trade, it is occasionally (and incorrectly) called "
brazilwood ''Paubrasilia echinata'' is a species of flowering plant in the legume family, Fabaceae, that is endemic to the Atlantic Forest of Brazil. It is a Brazilian timber tree commonly known as Pernambuco wood or brazilwood ( pt, pau-de-pernambuco, ; ...
". The fruit, like that of the related sapodilla ('' M. zapota''), is edible. Though its
heartwood Wood is a porous and fibrous structural tissue found in the stems and roots of trees and other woody plants. It is an organic materiala natural composite of cellulose fibers that are strong in tension and embedded in a matrix of lignin t ...
may present in a shade of purple, ''Manilkara bidentata'' should not be confused with another tropical tree widely known as "purpleheart", ''
Peltogyne ''Peltogyne'', commonly known as purpleheart, violet wood, amaranth and other local names (often referencing the colour of the wood) is a genus of 23 species of flowering plants in the family Fabaceae; native to tropical rainforests of Central ...
pubescens''. This timber is being used to produce outdoor furniture and is being marketed as "Pacific Jarrah" in Australia. File:Manilkara bidentata MHNT.BOT.2010.6.32.jpg, ''Manilkara bidentata'' - MHNT File:Logging Bulletwood Berbice-Guyana JK.JPG, Harvesting bulletwood in
Guyana Guyana ( or ), officially the Cooperative Republic of Guyana, is a country on the northern mainland of South America. Guyana is an indigenous word which means "Land of Many Waters". The capital city is Georgetown. Guyana is bordered by the ...
File:Tropenmuseum Royal Tropical Institute Objectnumber 1336-6 Zweep van balata.jpg, A whip handle of balatá, made before 1939


References


External links

* * {{Taxonbar, from=Q804658 bidentata Plants described in 1807 Trees of South America Natural materials Organic polymers Rubber Elastomers