Which plant has the highest number of species in  Hottonia or Spiraea
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Hottonia Hottonia is a genus of aquatic flowering plants in the family Primulaceae. It comprises two species:
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Spiraea Spiraea , is a genus of about 80 to 100 species of shrubs in the family Rosaceae. They are native to the temperate Northern Hemisphere, with the greatest diversity in eastern Asia.
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Hemerocallidoideae Hemerocallidoideae is the botanical name of a subfamily of flowering plants, part of the family Asphodelaceae "sensu lato" in the monocot order Asparagales according to the APG system of 2016. Earlier classification systems treated the group as a separate family, the Hemerocallidaceae. The name is derived from the generic name of the type genus, "Hemerocallis". The largest genera in the group are "Dianella" (with 20 species), "Hemerocallis" (15), and "Caesia" (11).
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Spirophyton Spirophyton is the former name of an ichnogenus or trace fossil belonging to the Zoophycos.
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Hypericum fieriense Hypericum fieriense is a species of flowering plant in the family Hypericaceae. It is endemic to Socotra, an island archipelago that is part of Yemen. It grows in mountain shrubland dominated by "Cephalocroton", where it can be found with the endemic tree "Dracaena cinnabari". It is rarer than other local shrubby "Hypericum" species. It can be distinguished from them by its pubescent herbage.
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Thespesia populnea Thespesia populnea, commonly known as the Indian tulip tree, Pacific rosewood, or Portia tree , is species of flowering plant in the mallow family, Malvaceae. It is a small tree or arborescent shrub that has a pantropical distribution, found on coasts around the world. However, the Portia tree is probably native only to the Old World, and may have originated in India. Nowadays, its wood is mainly used in making furniture because of its good ability to undergo carving. The wood from the tree was used by early Tamil people to make instruments in ancient Tamilakam. It is possibly indigenous to the Hawaiian Islands and elsewhere in the Pacific, but may have been spread by early Polynesians for its useful wood and bast fibres. The Portia tree reaches a height of 6 - tall and a trunk diameter of 20 - . It grows at elevations from sea level to 275 m in areas that receive 500 - of annual rainfall. The Portia tree is able to grow in the wide range of soil types that may be present in coastal environments, including soils derived from quartz (sand), limestone, and basalt; it favours neutral soils (pH of 6–7.4).
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Spiraeanthemum graeffei Spiraeanthemum graeffei is a species of plant in the Cunoniaceae family. It is endemic to Fiji.
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Inula spiraeifolia Inula spiraeifolia is a European species perennial herbaceous plant belonging to the genus "Inula" within the daisy family.
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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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Dicerandra Dicerandra is a genus of flowering plants in the mint family. "Dicerandra" comprises 11 species: six perennial and five annual species. The perennials have narrow ranges in Central Florida with small population sizes and only occur on ancient dune ridges along the Lake Wales Ridge or the Atlantic coastal ridge; the annual species occur more broadly on sandhill habitats to the north. The perennials’ habitat has been severely fragmented due to human development over the past century. As a result, all perennial species except one are listed as federally endangered. Annual species of the clade have large ranges when compared to perennial members, with distributions of annuals ranging for hundreds of miles from the Panhandle of Florida to southeastern Georgia, with the exception of "Dicerandra radfordiana" which is endemic to two sites along the Altamaha river. The genus is characterized by hornlike spurs on their anthers.
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Iriartea Iriartea is a genus in the palm family Arecaceae, native to Central and South America. The best-known species – and probably the only one – is Iriartea deltoidea, which is found from Nicaragua south into Bolivia and a great portion of Western Amazonian basin. It is the most common tree in many forests in which it occurs. It is known by such names as bombona (which can also refer to other palms, e.g. "Attalea regia") or cacho de vaca (which can refer to many other plants, like the Bignoniaceae "Godmania aesculifolia" or the orchid "Myrmecophila humboldtii"). In the Murui Huitoto language of southwestern Colombia, it is called "jɨagɨna" or "jɨaìgɨna", in western Ecuador it is known as pambil and in Peru it is known as the pona palm.
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List of Clusiaceae genera The family Clusiaceae was divided by Cronquist into 2 subfamilies: the Clusioideae (typical subfamily) and the Hypericoideae. The latter was often treated as a family - the Hypericaceae or St. John's wort family. Elements of the Hypericoideae are more common in North temperate areas and those of the Clusioideae are centered in the Tropics.
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U.S. Virgin Islands Dry Forest A Dry Forest are defined as a community of trees of different species that coexist in the same environment. These trees can grow nearby forming a canopy above. Dry forests lack an abundance of moisture, yet, there is an adequate amount of moisture to sustain the growth of the forest. Although dry forest tends to grow at an intermediate height compared to moist forest. Dry forest receives 850-1100mm of precipitation per year. High quantities of sea salt from the ocean decreases the height of the trees. Dry forest also consisted of layers of canopies, specifically two canopy layers that commonly found at an elevation below 300 meters. There is limited dead dry wood for termites to consume, this correlates with low density of termites in dry forests. The characteristics and development of Virgin Islands Dry Forest are contributed by a unique wind pattern that is usually strong. Dry Forest usually thrive in environments that have plenty sunshine, steep slopes, on soil that are challenged by thin rocky layers that poorly absorbs water. Within the three islands in the United States Virgin Islands, St. John has maintained a higher percentage of dry forest cover competing with St. Thomas at 43.1%; St. Croix has limited dry forest cover (9.22%). St. John and St. Thomas topography has significant steep hills and slopes compared to St. Croix. St. John is the most protected of the three islands, and as such it has the largest extensive tropical dry forests in the U.S. Virgin Islands. The island contains 650 native plants, 5,000 or more terrestrial insects, over 180 species of birds, of which 90% are native, and six native mammal bat species. One of the most common trees in the “native dry forest garden” is the amarat. They are acacias, (casha bush) but do not have thorns likes most other varieties.
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Isoetales Isoetales, formerly also written Isoëtales, is an order of plants in the class Isoetopsida. There are about 140-150 living species, all of which are classified in the genus "Isoetes" (quillworts), with a cosmopolitan distribution, but often scarce to rare. Living species are mostly aquatic or semi-aquatic, and are found in clear ponds and slowly moving streams. Each leaf is slender and broadens downward to a swollen base up to 5 mm wide where the leaves attach in clusters to a bulb-like, underground corm characteristic of most quillworts. This swollen base also contains male and female sporangia, protected by a thin, transparent covering (velum), which is used diagnostically to help identify quillwort species. Quillwort species are very difficult to distinguish by general appearance. The best way to identify them is by examining the megaspores under a microscope.
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Veltheimia bracteata Veltheimia bracteata belongs to the genus "Veltheimia", which contains only one other species, "Velthemia capensis". "Veltheimia bracteata" is commonly referred to as the forest lily, sand onion, or red hot poker. This pendent shaped plant ranges in color from a yellowish pink to red. It is a winter flowering perennial plant, so is in full bloom when other flowers have withered away. Plants grow to be 12 – in height.
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Emplectopteridaceae The Emplectopteridaceae were pteridosperms known mainly from Permian floras of the Cathaysian Realm. They were mostly shrubby plants with a scrambling or upright habit, and favoured a range of habitats from arid to moist or even aquatic. The foliage is the most abundant known remains of this family, having been reported from Artinskian to Wuchiapingian macrofloras of both north and south China. The venation is characteristically flexuous to loosely anastomosed, and rather different from the more regularly anastomosed venation of the true gigantopterids (with which the Emplctopteridaceae fronds used to be confused). The stratigraphically older leaves tended to be twice pinnate ("Emplectopteris"), the later leaves once pinnate or entire ("Gigantonoclea"). The ovules were bilateral and attached to the underside of the leaves / fronds that did not differ significantly from normal vegetative foliage Pollen organs were a complex of filiform microsporophylls each bearing 2-8 sporangia (assigned to the fossil-genus "Jiaochengia").
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Paeonia broteri Paeonia broteri is a perennial, herbaceous species of peony. It is an endemic species of Spain and Portugal. It bears rose-pink flowers about 12 cm wide and glossy green leaves. It reaches up to 40 cm in height. Its common name in Portugal is rosa-albardeira, and in Spain albardera and matagallinas (also used for "Daphne gnidium" and "Solanum dulcamara").
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Rafflesia verrucosa Rafflesia verrucosa was first identified and characterized during a small mammal survey of Mt. Kampalili in eastern Mindanao in 2010. "R. verrucosa" is the tenth species of "Rafflesia" found in the Philippines. "Rafflesia" species have rare and unusual flowers known for their large size and pungent smell. Some plant enthusiasts like Frits W. Went have gone to extreme measures to see these plants in bloom. Went detailed his search for "Rafflesia" saying, "I had heard, when I was in Java many years ago, that "Rafflesia" were to be found on an offshore island named Nusah Kembangan. This was in 1929, when it was a penal colony for major criminals. My driver on this occasion was a convicted murderer, and my guide was serving time for cannibalism." The small size and interesting morphology of "Rafflesia verrucosa" make it one of the most unusual "Rafflesia" species. It is the smallest flowered "Rafflesia" species described from Mindanao. The other two, "R. mira" and "R. schadenbergiana", are some of the largest in the genus.
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Disinae Disinae is a subtribe of orchids that has been differently defined and placed in the two classification systems that are currently in use for orchids. "Genera Orchidacearum", which is currently the definitive work on orchid taxonomy, delimits Disinae as consisting of two closely related genera, "Disa" and "Schizodium", and it places Disinae in the mostly African tribe Diseae, along with four other subtribes: Brownleeinae, Huttonaeinae, Coryciinae, and Satyriinae. In the classification for orchids that was published by Chase et alii in 2015, "Schizodium" was placed in synonymy under "Disa", while "Pachites" and "Huttonaea" were transferred to Disinae. In "Genera Orchidacearum", "Pachites" and "Satyrium" form the subtribe Satyriinae, and "Huttonaea" is the sole genus in the subtribe Huttonaeinae. The transfer of "Pachites" and "Huttonaea" to Disinae by Chase et alii (2015) was done with considerable doubt, and was based upon uncertainty about the relationships of these two genera. In 2009, a molecular phylogenetic study found only weak statistical support for a sister relationship between "Huttonaea" and "Disa".
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Ericaceae The Ericaceae are a family of flowering plants, commonly known as the heath or heather family, found most commonly in acid and infertile growing conditions. The family is large, with c. 4250 known species spread across 124 genera, making it the 14th most species-rich family of flowering plants. The many well-known and economically important members of the Ericaceae include the cranberry, blueberry, huckleberry, rhododendron (including azaleas), and various common heaths and heathers ("Erica", "Cassiope", "Daboecia", and "Calluna" for example).
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Stylochaeton Stylochaeton is a genus of flowering plants in the Araceae family that is endemic to Africa. "Stylochaeton" are rhizomatous with hastate leaves. Flowering in this genus is said to be quite uncommon.
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Banksia hookeriana Banksia hookeriana, commonly known as Hooker's banksia, is a species of shrub of the genus "Banksia" in the family Proteaceae. It is native to the southwest of Western Australia and can reach up to 4 m high and 3 m wide. This species has long narrow serrated leaves and large, bright flower spikes, initially white before opening to a bright orange that appear over the cooler months. The flowers are pollinated by honeyeaters. The ageing flower spikes develop woody seed pods known as follicles. "B. hookeriana" is serotinous — large numbers of seeds are stored in the plant canopy for years until the plants are burnt by bushfire.