Hevea brasiliensis in the context of "India rubber"

A biogenic substance is a product made by or of life forms. While the term originally was specific to metabolite compounds that had toxic effects on other organisms, it has developed to encompass any constituents, secretions, and metabolites of plants or animals. In context of molecular biology, biogenic substances are referred to as biomolecules. They are generally isolated and measured through the use of chromatography and mass spectrometry techniques. Additionally, the transformation and exchange of biogenic substances can by modelled in the environment, particularly their transport in waterways.

The observation and measurement of biogenic substances is notably important in the fields of geology and biochemistry. A large proportion of isoprenoids and fatty acids in geological sediments are derived from plants and chlorophyll, and can be found in samples extending back to the Precambrian. These biogenic substances are capable of withstanding the diagenesis process in sediment, but may also be transformed into other materials. This makes them useful as biomarkers for geologists to verify the age, origin and degradation processes of different rocks.

Plantations are farms specializing in cash crops, usually mainly planting a single crop, with perhaps ancillary areas for vegetables for eating and so on. Plantations, centered on a plantation house, grow crops including cotton, cannabis, tobacco, coffee, tea, cocoa, sugar cane, opium, sisal, oil seeds, oil palms, fruits, rubber trees and forest trees. Protectionist policies and natural comparative advantage have sometimes contributed to determining where plantations are located.

In modern use, the term usually refers only to large-scale estates. Before about 1860, it was the usual term for a farm of any size in the southern parts of British North America, with, as Noah Webster noted, "farm" becoming the usual term from about Maryland northward. The enslavement of people was the norm in Maryland and states southward. The plantations there were forced-labor farms. The term "plantation" was used in most British colonies but very rarely in the United Kingdom itself in this sense. There it was used mainly for tree plantations, areas artificially planted with trees, whether purely for commercial forestry, or partly for ornamental effect in gardens and parks, when it might also cover plantings of garden shrubs.

Rubber, also called India rubber, latex, Amazonian rubber, caucho, or caoutchouc, as initially produced, consists of polymers of the organic compound isoprene, with minor impurities of other organic compounds.

Types of polyisoprene that are used as natural rubbers are classified as elastomers. Currently, rubber is harvested mainly in the form of the latex from the Pará rubber tree (Hevea brasiliensis) or others. The latex is a sticky, milky and white colloid drawn off by making incisions in the bark and collecting the fluid in vessels in a process called "tapping". Manufacturers refine this latex into the rubber that is ready for commercial processing.

Latex (pl. latices) is an emulsion (stable dispersion) of polymer microparticles in water. Latices are found in nature, but synthetic latices are common as well.

In nature, latex is found as a milky fluid, which is present in 10% of all flowering plants (angiosperms) and in some mushrooms (especially species of Lactarius). It is a complex emulsion that coagulates on exposure to air, consisting of proteins, alkaloids, starches, sugars, oils, tannins, resins, and gums. It is usually exuded after tissue injury. In most plants, latex is white, but some have yellow, orange, or scarlet latex. Since the 17th century, latex has been used as a term for the fluid substance in plants, deriving from the Latin word for 'liquid'. It serves mainly as defense against herbivores and fungivores.

The planter class was a racial and socioeconomic class which emerged in the Americas during European colonization in the early modern period. Members of the class, most of whom were settlers of European descent, consisted of individuals who owned or were financially connected to plantations, large-scale farms devoted to the production of cash crops in high demand across markets in Europe and America. These plantations were operated by the forced labor of enslaved people and indentured servants and typically existed in subtropical, tropical, and somewhat more temperate climates, where the soil was fertile enough to handle the intensity of plantation agriculture. Cash crops produced on plantations owned by the planter class included tobacco, sugarcane, cotton, indigo, coffee, tea, cocoa, sisal, oil seeds, oil palms, hemp, rubber trees, and fruits. In North America, the planter class formed part of the American gentry.

As European settlers began to colonize the Americas in the 16th and 17th centuries, they quickly realized the economic potential of growing cash crops which were in high demand in Europe. Settlers began to establish plantations, the majority of which were located in the West Indies. Initially, these plantations were operated with the labor of indentured servants from Europe, but they were eventually supplanted by enslaved Africans brought to the Americas via the Atlantic slave trade. Colonial plantations eventually formed a key component of the triangular trade, whereby European goods were brought to Africa and exchanged for slaves, which were brought to the Americas to be sold to colonists, who used them to produce cash crops which were shipped back to Europe; most African slaves brought to the Americas were sold to the planter class, who frequently subjected them to brutal mistreatment.

Euphorbiaceae (/juːˈfoʊrbiːˌeɪsiˌaɪ, -siːˌiː/), the spurge family, is a large family of flowering plants. In English, they are also commonly called euphorbias, which is also the name of the type genus of the family. Most spurges, such as Euphorbia paralias, are herbs, but some, especially in the tropics, are shrubs or trees, such as Hevea brasiliensis. Some, such as Euphorbia canariensis, are succulent and resemble cacti because of convergent evolution. This family has a cosmopolitan global distribution. The greatest diversity of species is in the tropics; however, the Euphorbiaceae also have many species in nontropical areas of all continents except Antarctica.