Does Roystonea or Dionysia have more species?
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Roystonea Roystonea is a genus of eleven species of monoecious palms, native to the Caribbean Islands, and the adjacent coasts of Florida and Central and northern South America. Commonly known as the royal palms, the genus was named for Roy Stone, a U.S. Army engineer. It contains some of the most recognizable and commonly cultivated palms in tropical and subtropical regions.
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Dionysia (plant) Dionysia is a genus containing 49 species of flowering plants in the family Primulaceae. They are small, cushion-forming alpines native to mountains in central Asia. They are usually evergreen perennials with felted leaves, covered with bright yellow or pink, five-petalled flowers in spring. They are often difficult to cultivate if the correct conditions are not provided.
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Shirleya Shirleya is an extinct genus in the crape myrtle family, Lythraceae, which contains a single species, Shirleya grahamae. The genus and species are known from Middle Miocene fossils found in Central Washington.
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Platydesma Platydesma is a genus of plants in family Rutaceae. Evidence from 2009 indicates that "Platydesma" is nested within the related genus "Melicope" and is sister to all Hawaiian "Melicope" species. And while "Melicope" species are dioecious (individual plants only bear either male or female flowers), the flowers of "Platydesma" are hermaphroditic, suggesting a rare evolutionary reversion away from dioecy in "Platydesma". While they have no medicinal purposes; the board of water supply states that they can be used for a shrub.
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Royella Royella is a genus of sea snails, marine gastropod mollusks in the family Cerithiidae.
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Stonebergia Stonebergia is an extinct genus in the rose family Rosaceae which contains the single species Stonebergia columbiana. The genus was described from a series of isolated fossil leaves in shale from an early Eocene location in southern British Columbia.
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Acidia Acidia is a small genus of flies in the family Tephritidae. It formerly contained many species, but by some authors has since been restricted to two.
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Gonepteryx rhamni Gonepteryx rhamni (known as the common brimstone) is a butterfly of the family Pieridae. It lives in Europe, North Africa and Asia. Across much of its range, it is the only species of its genus, and is therefore simply known locally as the brimstone. The name "butterfly" is believed to have originated from the brimstone — which was called the butter-coloured fly by early British naturalists.
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Hydriastele Hydriastele is a diverse and widespread genus of flowering plant in the palm family found throughout Australia and New Zealand, Melanesia, Polynesia, and Southeast Asia. It consisted of just nine species until 2004, when molecular research, supported by morphologic similarities, led taxonomists to include the members of the Gulubia, Gronophyllum, and Siphokentia genera. 48 species are now recognized, of which 38 are new combinations, two are new names and one is a new species. It is named in Greek, combining "hydriad", a water nymph in mythology, and "column".
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Robynsia Robynsia is a monotypic genus of flowering plants in the Rubiaceae family. It was described by John Hutchinson and was named after his friend and colleague Walter Robyns. The genus contains only one species, Robynsia glabrata, which is found in Ghana, Ivory Coast and Nigeria. The species is morphologically similar to the genus "Cuviera" but differs by having long, slender corolla tubes.
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Rhodeus Rhodeus is a genus of cyprinid fish, consisting of 22 species called bitterlings. The scientific name is derived from the Greek word "rhodeos", meaning "rose". Most species in the genus are restricted to Asia, but two species are found in Europe ("R. amarus" and "R. meridionalis").
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Dione (butterfly) Dione is a genus of butterflies of the subfamily Heliconiinae in the family Nymphalidae found from southern United States to South America.
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Hyloxalus Hyloxalus is a genus of poison dart frogs. The genus is distributed in Central and South America, from Panama south to Peru (along the Pacific coast), along with Venezuela, Colombia, and Ecuador. They also inhabit the eastern foothills of the Andes in Bolivia to Venezuela, east to the upper Amazon Basin. Many "Hyloxalus" species, such as the cream-back, bear superficial resemblances to hylids, such as the presence of small webs between their toes, and the discs at the end of their toes are slightly adhesive. This may be one of the oldest of dendrobatid genera; if this is the case, the genus has changed little since it first evolved.
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Tchoiria Tchoiria is a genus of simoedosaurid choristodere, a type of crocodile-like aquatic reptile. Fossils of this genus have been found in Early Cretaceous-age rocks in Mongolia. Four species have been named, but two have been given their own genera. The type species is "T. namsari", based on PIN 3386/1, a partial skull and skeleton discovered in the Aptian-age Lower Cretaceous Hühteeg Formation at Hüren Dukh, central Mongolia. Two other species were named from this locality, with both later being reassigned: "T. egloni", now "Irenosaurus egloni"; and "T. magnus", now "Ikechosaurus magnus". A fourth species, "T. klauseni", was named from a partial skull and skeleton found in rocks of roughly the same age farther west in Mongolia.
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Dionycha The Dionycha are a clade of spiders (Araneomorphae:Entelegynae), characterized by the possession of two tarsal claws with tufts of hairs (setae) beside them, which produce strong adhesion, enabling some species to climb glass. The circumscription of the group has varied widely; a 2014 analysis resulted in about 20 families, including Salticidae (jumping spiders), Thomisidae (crab spiders), and Clubionidae. Spiders in this group have better senses (sight, hearing) than others, some even show courtship dances and songs.
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Stylogyne Stylogyne is a genus of shrubs and trees in the family Primulaceae. Its members are found throughout tropical parts of the Americas, with the greatest diversity in South America. It is closely related to the genera "Ardisia" and "Geissanthus", and various species have been transferred between the three genera. All three were formerly placed in the family Myrsinaceae, which is now treated as a subfamily (Myrsinoideae) of the Primulaceae.
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Erysimum Erysimum (wallflower) is a genus of flowering plants that includes about 180 species of popular garden plants and many wild forms in the botanical family "Brassicaceae". The genus "Cheiranthus" is sometimes included here in whole or in part. Erysimum has since the early 21st century been ascribed to a monogeneric cruciferous tribe, Erysimeae, characterized by sessile, stellate and/or malpighiaceous trichomes, yellow to orange flowers and multiseeded siliques.
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Aristonectidae The Aristonectidae is a taxonomic family of poorly known plesiosaurs from the Jurassic and Cretaceous periods. They are closely related to polycotylid plesiosaurs. The family is made up of "Tatenectes", "Kimmerosaurus", "Aristonectes", and "Kaiwhekea". This group was formerly known as the Cimoliasauridae, but since "Cimoliasaurus" is indeterminate and quite possibly elasmosaurid, this replacement name was erected.
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Gustavia (plant) Gustavia is a genus of flowering plants of Lecythidaceae family described by Linnaeus in 1775. It is native to tropical Central America and South America. Many of the species are threatened; some are critically endangered "Gustavia superba", though, is actually abundant in re-growing secondary forests. It grows in northern South America, from Panama south through the Andes as far as Ecuador, and along the Caribbean coast and in the Amazon basin.
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Nesogordonia Nesogordonia is a flowering plant genus. Traditionally included in the family Sterculiaceae, it is included in the expanded Malvaceae in the APG and most subsequent systematics. In that clade, it belongs to the subfamily Dombeyoideae. "Nesogordonia" is among the oldest living genera of its subfamily, if not "the" most ancestral one.
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Geoffroea Geoffroea is a rather small genus of wild spiny shrubs or small trees of tropical and subtropical South America. Although it gathers few species, they are highly extended geographically throughout the subcontinent. Each species is well known in its local area, as seen from the varied (and mostly domestic) usage of these trees as food, timber, or fuel. It was recently assigned to the informal monophyletic "Pterocarpus" clade within the Dalbergieae.
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Timonya Timonya is an extinct genus of temnospondyl amphibian represented by the type species Timonya anneae from the Early Permian of Brazil. "Timonya" is a basal member of a clade or evolutionary grouping of temnospondyls called Dvinosauria. It was named in 2015 on the basis of several specimens from the lower part of the Pedra de Fogo Formation in Parnaíba Basin, which is about 278 million years old. It was likely a small aquatic predator that inhabited lakes and wetland areas. During the Early Permian the center of tetrapod diversity was in the equatorial regions of the supercontinent Pangea, and "Timonya" was part of this fauna.