Question: Which genus has more known species, Epipactis or Coriaria?
Context: Epipactis leptochila, the narrow-lipped helleborine, is a species of the genus "Epipactis".  Found in chalk or limestone-based beech and hornbeam woodland in southern England, the orchids are also found with Birch and Alder trees in Scotland and the north of England.  The narrow-lipped helleborine blooms from early June to mid-August.  "Epipactis leptochila" is also found in parts of northern Europe (away from the coastline) but it is known for its presence in England.  Due to woodland clearing, the orchids are becoming less common. Epipactis, or Helleborine, is a genus of terrestrial orchids consisting of approximately 70 species.  This genus is abbreviated as Epcts in horticultural trade. Termitaphididae, occasionally called termite bugs, is a small tropicopolitan family of true bugs placed in the superfamily Aradoidea.  Typically members of Termitaphididae are small, being an average of 2 mm -4 mm , and flattened with laminae extending out from each body segment giving a round scale like appearance.  Currently the family contains two genera and twelve known species.  Members of Termitaphididae are inquilines lodging in the nests of host species of termite families Termitidae and Rhinotermitidae.  Though considered a separate family in Aradoidea it has been suggested by Drs David Grimaldi and Michael Engel in 2008 that Termataphididae may in fact be highly derived members of Aradidae.  Of the thirteen known species one "Termitaphis circumvallata" belongs to the monotypic genus "Termitaphis" and four of the remaining eleven species in "Termitaradus" are extinct, having only been found in amber.  The living species are found worldwide in the tropical regions of Central and South America, Africa, Asia, and Australia. Moniezia a genus of tapeworms that are parasitic in mammals, including sheep, goat and cattle.  It comprises four known species such as "M. expansa", "M. benedeni", "M. autumnalis" and "M. baeri". " M. expansa" is the most well known species within the genus because of its high prevalence.  Members of the genus are among the largest cestodes reaching up to 10 m in length.  They inhabit the small intestine of mammalian host.  Their life cycle is indirect requiring intermediate host, which are oribatid mites.  They are characterized by the presence of interproglottid glands. Ascaridia is the name of a genus of parasitic nematodes. Members of the genus are primarily intestinal parasites of birds.  There are three well known species, namely, "A. galli" found mostly in chicken, "A. dissimilis" in turkeys, and "A. columbae" in pigeons. Lesser known species such as "A. hermaphrodita", "A. sergiomeirai", "A. ornata", "A. nicobarensis" and "A. platyceri" are found in parrots. Coriaria is the sole genus in the family Coriariaceae described by Linnaeus in 1753.  It includes 14 species of subshrubs, shrubs and small trees, with a widespread but disjunct distribution across warm temperate regions of the world, occurring as far apart as the Mediterranean region, southern and eastern Asia, New Zealand (where some are alpine species), the Pacific Ocean islands, and Central and South America. Flemingia is a genus of flowering plants in the legume family Fabaceae.  It is native to Asia and the species are distributed in Bhutan, Burma, China, India; Indonesia, Laos, Malaysia, Nepal, Pakistan, Papua New Guinea, Philippines, Sri Lanka, Taiwan, Thailand and Vietnam.  The genus was founded in 1812.  The number of known species is ambiguous due to taxonomic problems; and is usually enumerated as more than 30.  Burma and China have the highest record of "Flemingia" species with 16 each, followed by India (with 15 species), Thailand (11 species), Laos (10 species), Vietnam (8 species), Bhutan (1 species) and Nepal (5 species). Tutin is a poisonous plant derivative found in the New Zealand tutu plant (Coriaria arborea, "Coriaria" genus, several different species).  It acts as a potent antagonist of the glycine receptor, and has powerful convulsant effects.  It is used in scientific research into the glycine receptor, and is also sometimes associated with outbreaks of toxic honey poisoning when bees feed honeydew exudate from the sap-sucking insect commonly known as the passion vine hopper, when these vine hoppers (Scolypopa australis) have been feeding on the sap of tutu bushes.  Toxic honey is a rare event and is more likely to occur when comb honey is eaten directly from a hive that has been harvesting honeydew from passion vine hoppers feeding on tutu plants. Arcobacter is a genus of Gram-negative, spiral-shaped bacteria in the epsilonproteobacteria class.  It shows an unusually wide range of habitats, and some species can be human and animal pathogens.  Species of the genus "Arcobacter" are found in both animal and environmental sources, making it unique among the epsilonproteobacteria.  This genus currently consists of five species: "A. butzleri", "A. cryaerophilus", "A. skirrowii", "A. nitrofigilis", and "A. sulfidicus", although several other potential novel species have recently been described from varying environments.  Three of these five known species are pathogenic.  Members of this genus were first isolated in 1977 from aborted bovine fetuses.  They are aerotolerant, "Campylobacter"-like organisms, previously classified as "Campylobacter".  The "Arcobacter" genus, in fact, was created as recently as 1992.  Although they are similar to this other genus, "Arcobacter" species can grow at lower temperatures than "Campylobacter", as well as in the air, which "Campylobacter" cannot. Bolitoglossa is a genus of lungless salamanders, also called mushroom-tongued salamanders tropical climbing salamanders or web-footed salamanders, in the family Plethodontidae.  Their range is between northern Mexico through Central America to Colombia, Venezuela, Ecuador, Peru, northeastern Brazil, and central Bolivia.  Neotropical salamanders of the "Bolitoglossa" genus make up the largest genus in the order Caudata, consisting of approximately one-fifth of all known species of salamanders.  Adult salamanders range anywhere from 45mm to 200mm in length depending on their specific species.  They are notorious for their ability to project their tongue at prey items, as indicated from their name.  They are also known for their webbed feet, having significantly more webbing than any other species outside their genus with the exception of the cave-dwelling Mexican bolitoglossine "Chiropterotriton magnipes".  Although webbed feet are a common characteristic of these salamanders, only about half of the species in this genus contain webbed feet.
Answer: Epipactis