Question: Does Limnocharis or Oemleria genus of plant have more recognized species?

Context articles: Polistes
Betanodavirus
Limnocharis
Melanella polita
Placonotus
Astragalus montii
Umbravirus
Isoetes
Spondianthus
Oemleria

Wasps of the cosmopolitan genus Polistes (the only genus in the tribe Polistini) are the most familiar of the polistine wasps, and are the most common type of paper wasp in North America.
 It is also the single largest genus within the family Vespidae, with over 300 recognized species and subspecies.
 Their innate preferences for nest-building sites leads them to commonly build nests on human habitation, where they can be very unwelcome; although generally not aggressive, they can be provoked into defending their nests.
 All species are predatory, and they may consume large numbers of caterpillars, in which respect they are generally considered beneficial.
 The European paper wasp, "Polistes dominula", was introduced into the US about 1981 and has quickly spread throughout most of the country, in most cases replacing native species within a few years.
 This species is very commonly mistaken for a yellow jacket, as it is black, strongly marked with yellow, and quite different from the native North American species of "Polistes".
 The cuckoo wasp, "Polistes sulcifer", is an obligate social parasite, whose only host is "P. dominula". "
Polistes annularis", whose species name is Latin for "ringed", is also known for its distinctive red body color. "
Polistes metricus" adults malaxate their insect prey by chewing them into a pulp, sucking out and ingesting the body fluids, then feeding the rest of the morsel to their larvae.
 The most widely distributed South American wasp species, "Polistes versicolor", is particularly common in the southeastern Brazilian states.
 This social wasp is commonly referred to as the yellow paper wasp due to the distinct yellow bands found on its thorax and abdomen.
 "Polistes" wasps can be identified by their characteristic flight; their long legs dangle below their bodies, which are also more slender than a yellow jacket.
Betanodavirus or nervous necrosis virus (NNV) is a viral genus classified in the family Nodaviridae.
 It contains four recognized species: "Barfin flounder nervous necrosis virus" (BFNNV), "Redspotted grouper nervous necrosis virus"(RGNNV), "Striped Jack nervous necrosis virus" (SJNNV) and "Tiger puffer nervous necrosis virus" (TPNNV), SJNNV being the type species.
 There are other 12 tentative species in the genus that haven't been recognized by the ICTV.
 Betanodaviruses cause a disease in fish called viral nervous necrosis (VNN) or viral encephalopathy and retinopathy (VER).
Limnocharis is a genus of plants in the family Alismataceae, native to Mexico, Central America, the West Indies and South America) but naturalized in China, India, and Southeast Asia as well.
 Two species are recognized as of May 2014:
Melanella polita is a species of small sea snail, a marine gastropod mollusk in the family Eulimidae.
 The species is one of multiple known species to exist within the genus, "Eulima".
 This species is also known to be one of the first recognized species to be assigned to the major "Melanella" genus of Eulimidae.
Placonotus is a genus of beetles in the family Laemophloeidae.
 There are 40 currently recognized species, known from all continents except Antarctica.
 "Placonotus" species are small (~2mm), elongate, flattened beetles, characterized by long filiform antennae, presence of a frontoclypeal suture, open anterior coxal cavities, and broadly rounded intercoxal process of abdominal ventrite III.
 Males have the 8th abdominal segment modified to form claspers used during mating.
 Adults and larvae are found under dead bark, where they feed on fungi.
 Currently recognized species are:
Astragalus montii is a rare species of flowering plant in the legume family known by the common name heliotrope milkvetch.
 It is endemic to Utah in the United States, where there are only three known populations.
 It is a federally listed threatened species of the United States.
 This species is often treated as a variety of "Astragalus limnocharis".
The genus Umbravirus includes plant viruses assigned to the family "Tombusviridae".
 The genus has seven recognized species: "Carrot mottle mimic virus", "Carrot mottle virus", the type species, "Groundnut rosette virus", "Lettuce speckles mottle virus", "Pea enation mosaic virus 2", "Tobacco bushy top virus", and "Tobacco mottle virus".
Isoetes, commonly known as the quillworts, is a genus of plants in the class Isoetopsida and order Isoetales.
 They are lycopods and the only genus in Isoetaceae.
 There are currently 192 recognized species, with a cosmopolitan distribution but often scarce to rare.
 Some botanists split the genus, separating two South American species into the genus "Stylites", although molecular data place these species among other species of "Isoetes", so "Stylites" does not warrant taxonomic recognition.
Spondianthus is a genus of plant, in the family Phyllanthaceae and is the only genus comprised in the subtribe Spondianthinae.
 It was first described as a genus in 1905.
 The genus contains only one recognized species, Spondianthus preussii, widespread across much of tropical Africa from Liberia to Mozambique.
Oemleria cerasiformis, a shrub commonly known as osoberry or Indian plum, is the sole species in genus Oemleria.