Pyrenacantha
Encyclopedia
Pyrenacantha is a genus of plant
in family Icacinaceae
. It has about 20 species, all from the Old World
tropics
. The type species
, Pyrenacantha volubilis, was named by William Jackson Hooker
in 1830. Pyrenacantha cordicula
is from tropical West Africa
.
Plant
Plants are living organisms belonging to the kingdom Plantae. Precise definitions of the kingdom vary, but as the term is used here, plants include familiar organisms such as trees, flowers, herbs, bushes, grasses, vines, ferns, mosses, and green algae. The group is also called green plants or...
in family Icacinaceae
Icacinaceae
Icacinaceae is a family of flowering plants.It consists of trees, shrubs, and lianas, primarily of the tropics.The family was traditionally circumscribed quite broadly, with around 55 genera totalling over 400 species...
. It has about 20 species, all from the Old World
Old World
The Old World consists of those parts of the world known to classical antiquity and the European Middle Ages. It is used in the context of, and contrast with, the "New World" ....
tropics
Tropics
The tropics is a region of the Earth surrounding the Equator. It is limited in latitude by the Tropic of Cancer in the northern hemisphere at approximately N and the Tropic of Capricorn in the southern hemisphere at S; these latitudes correspond to the axial tilt of the Earth...
. The type species
Type species
In biological nomenclature, a type species is both a concept and a practical system which is used in the classification and nomenclature of animals and plants. The value of a "type species" lies in the fact that it makes clear what is meant by a particular genus name. A type species is the species...
, Pyrenacantha volubilis, was named by William Jackson Hooker
William Jackson Hooker
Sir William Jackson Hooker, FRS was an English systematic botanist and organiser. He held the post of Regius Professor of Botany at Glasgow University, and was the first Director of the Royal Botanic Gardens, Kew. He enjoyed the friendship and support of Sir Joseph Banks for his exploring,...
in 1830. Pyrenacantha cordicula
Pyrenacantha cordicula
Pyrenacantha cordicula is a species of plant in the Icacinaceae family. It is found in Cameroon, Ivory Coast, Equatorial Guinea, and Ghana. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss.-Source:...
is from tropical West Africa
West Africa
West Africa or Western Africa is the westernmost region of the African continent. Geopolitically, the UN definition of Western Africa includes the following 16 countries and an area of approximately 5 million square km:-Flags of West Africa:...
.