''Anthorrhiza'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...

of myrmecophytic

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants t ...

s in the

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

Rubiaceae The Rubiaceae are a family of flowering plants, commonly known as the coffee, madder, or bedstraw family. It consists of terrestrial trees, shrubs, lianas, or herbs that are recognizable by simple, opposite leaves with interpetiolar stipules a ...

. It is endemic to

Papua New Guinea Papua New Guinea (abbreviated PNG; , ; tpi, Papua Niugini; ho, Papua Niu Gini), officially the Independent State of Papua New Guinea ( tpi, Independen Stet bilong Papua Niugini; ho, Independen Stet bilong Papua Niu Gini), is a country i ...

, including the

Louisiade Archipelago The Louisiade Archipelago is a string of ten larger volcanic islands frequently fringed by coral reefs, and 90 smaller coral islands in Papua New Guinea. It is located 200 km southeast of New Guinea, stretching over more than and spre ...

. It is one of five ant-plant genera in the family Rubiaceae, the others being ''

Hydnophytum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'', '' Myrmecodia'', ''

Myrmephytum ''Myrmephytum'' is a genus of myrmecophytic flowering plants in the family Rubiaceae. It is distributed from central Malesia to New Guinea. It is one of five ant-plant genera in the family Rubiaceae, the others being ''Anthorrhiza'', ''H ...

'', and ''

Squamellaria ''Squamellaria'' is a genus of myrmecophytic flowering plants in the family Rubiaceae. It is endemic to the islands of Fiji. It is one of five ant-plant genera in the family Rubiaceae, the others being ''Anthorrhiza'', ''Hydnophytum'', ' ...

''.

Species

* ''

Anthorrhiza areolata ''Anthorrhiza'' is a genus of myrmecophytic flowering plants in the family Rubiaceae. It is endemic to Papua New Guinea, including the Louisiade Archipelago. It is one of five ant-plant genera in the family Rubiaceae, the others being ''Hydnoph ...

'' C.R.Huxley & Jebb * ''

Anthorrhiza bracteosa ''Anthorrhiza'' is a genus of myrmecophytic flowering plants in the family Rubiaceae. It is endemic to Papua New Guinea, including the Louisiade Archipelago. It is one of five ant-plant genera in the family Rubiaceae, the others being ''Hydnoph ...

'' C.R.Huxley & Jebb * ''

Anthorrhiza caerulea ''Anthorrhiza'' is a genus of myrmecophytic flowering plants in the family Rubiaceae. It is endemic to Papua New Guinea, including the Louisiade Archipelago. It is one of five ant-plant genera in the family Rubiaceae, the others being ''Hydnoph ...

'' C.R.Huxley & Jebb * ''

Anthorrhiza camilla ''Anthorrhiza'' is a genus of myrmecophytic flowering plants in the family Rubiaceae. It is endemic to Papua New Guinea, including the Louisiade Archipelago. It is one of five ant-plant genera in the family Rubiaceae, the others being ''Hydnoph ...

'' Jebb * ''

Anthorrhiza chrysacantha ''Anthorrhiza'' is a genus of myrmecophytic flowering plants in the family Rubiaceae. It is endemic to Papua New Guinea, including the Louisiade Archipelago. It is one of five ant-plant genera in the family Rubiaceae, the others being ''Hydnoph ...

'' C.R.Huxley & Jebb * ''

Anthorrhiza echinella ''Anthorrhiza'' is a genus of myrmecophytic flowering plants in the family Rubiaceae. It is endemic to Papua New Guinea, including the Louisiade Archipelago. It is one of five ant-plant genera in the family Rubiaceae, the others being ''Hydnoph ...

'' C.R.Huxley & Jebb * ''

Anthorrhiza mitis ''Anthorrhiza'' is a genus of myrmecophytic flowering plants in the family Rubiaceae. It is endemic to Papua New Guinea, including the Louisiade Archipelago. It is one of five ant-plant genera in the family Rubiaceae, the others being ''Hydnoph ...

'' C.R.Huxley & Jebb * ''

Anthorrhiza recurvispina ''Anthorrhiza'' is a genus of myrmecophytic flowering plants in the family Rubiaceae. It is endemic to Papua New Guinea, including the Louisiade Archipelago. It is one of five ant-plant genera in the family Rubiaceae, the others being ''Hydnoph ...

'' C.R.Huxley & Jebb * ''

Anthorrhiza stevensii ''Anthorrhiza'' is a genus of myrmecophytic flowering plants in the family Rubiaceae. It is endemic to Papua New Guinea, including the Louisiade Archipelago. It is one of five ant-plant genera in the family Rubiaceae, the others being ''Hydnoph ...

'' C.R.Huxley & Jebb

References

Rubiaceae genera Psychotrieae Myrmecophytes Endemic flora of New Guinea {{Rubioideae-stub