Psilostoma
Encyclopedia
Psilostoma was a monotypic genus
of flowering plant
s in the Rubiaceae
family
but is no longer recognized. It was originally described in 1837. The genus contained only one species
, i.e. Psilostoma cilliata, from South Africa
. It was sunk into synonymy with Canthium
.
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
of flowering plant
Flowering plant
The flowering plants , also known as Angiospermae or Magnoliophyta, are the most diverse group of land plants. Angiosperms are seed-producing plants like the gymnosperms and can be distinguished from the gymnosperms by a series of synapomorphies...
s in the Rubiaceae
Rubiaceae
The Rubiaceae is a family of flowering plants, variously called the coffee family, madder family, or bedstraw family. The group contains many commonly known plants, including the economically important coffee , quinine , and gambier , and the horticulturally valuable madder , west indian jasmine ,...
family
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...
but is no longer recognized. It was originally described in 1837. The genus contained only one species
Species
In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...
, i.e. Psilostoma cilliata, from South Africa
South Africa
The Republic of South Africa is a country in southern Africa. Located at the southern tip of Africa, it is divided into nine provinces, with of coastline on the Atlantic and Indian oceans...
. It was sunk into synonymy with Canthium
Canthium
Canthium is a genus of flowering plants in the Rubiaceae family. They are shrubs and small trees. The leaves are deciduous and the stems are usually thorny.-Distribution:They are native to India, Sri Lanka, and tropical East Africa.-Taxonomy:...
.