Question: Which genus has more species, Galanthus or Rhodanthemum?

full_context: Document 1: Sagina: Sagina (like "Colobanthus" called "pearlworts") is a genus of 20–30 species of flowering plants in the pink or carnation family, Caryophyllaceae. These are flowering herbs native to temperate regions of the Northern Hemisphere extending south to tropical mountain areas at high altitudes, reaching just south of the equator in Africa. They are small annual or perennial herbaceous plants, growing to 5–15 cm. The leaves are opposite, often in tight whorl-like clusters, simple linear, typically 5–20 mm long. The flowers are solitary or in small cymes, with four or five green sepals and an equal number of white petals; the petal size relative to the sepal size is useful in species identification. The fruit is a small capsule containing several seeds.
Document 2: Argyranthemum: Argyranthemum (marguerite, marguerite daisy, dill daisy) is a genus of flowering plants belonging to the family Asteraceae. Members of this genus are sometimes also placed in the genus "Chrysanthemum".
Document 3: Dimorphotheca: Dimorphotheca is a genus of plants in the sunflower family, native to Africa and Australia. is one of eight genera of the Calenduleae, with a centre of diversity in Southern Africa. Some species can hybridize with "Osteospermum", and crosses are sold as cultivated ornamentals. The name ""Dimorphotheca"" comes from the Greek "Dis" "Morphe" and "Theka", meaning "two shaped fruit", referring to the dimorphic cypselae, a trait inherent to members of the Calenduleae. Plants of this genus usually have bisexual flowers.
Document 4: Galanthus nivalis: Galanthus nivalis, the snowdrop or common snowdrop, is the best-known and most widespread of the 20 species in its genus, "Galanthus". Snowdrops are among the first bulbs to bloom in spring and can form impressive carpets of white in areas where they are native or have been naturalised. They should not be confused with the snowflakes, in the genera "Leucojum" and "Acis".
Document 5: Anthemis: Anthemis is a genus of aromatic flowering plants in the family Asteraceae, closely related to "Chamaemelum", and like that genus, known by the common name chamomile; some species are also called dog-fennel or mayweed. "Anthemis" are native to the Mediterranean region and southwest Asia east to Iran. A number of species have also become naturalized in the United Kingdom and other parts of the world.
Document 6: Chamaemelum: Chamaemelum is a small genus of plants in the daisy family commonly known as chamomiles or dogfennels. Perhaps the best-known species is Roman chamomile, "Chamaemelum nobile". These are annual or perennial herbs, rarely exceeding half a meter in height and usually bearing solitary white daisylike flowers with yellow centers. They are native to Europe but most species can be found scattered in other continents where they have been introduced.
Document 7: Galanthus: Galanthus (snowdrop; Greek "gála" "milk", "ánthos" "flower") is a small genus of about 20 species of bulbous perennial herbaceous plants in the family Amaryllidaceae. The plants have two linear leaves and a single small white drooping bell shaped flower with six petal-like (petaloid) tepals in two circles (whorls). The smaller inner petals have green markings.
Document 8: Galanthus elwesii: Galanthus elwesii (Elwes's snowdrop, greater snowdrop) is one of a number of species of the genus "Galanthus", herbaceous, perennial, bulbous plants belonging to the family Amaryllidaceae. It is a native of the Caucasus.
Document 9: Ornithogalum: Ornithogalum is a genus of perennial plants mostly native to southern Europe and southern Africa belonging to the family Asparagaceae. Some species are native to other areas such as the Caucasus. Growing from a bulb, species have linear basal leaves and a slender stalk, up to 30 cm tall, bearing clusters of typically white star-shaped flowers, often striped with green. The common name of the genus, Star-of-Bethlehem, is based on its star-shaped flowers, after the Star of Bethlehem that appeared in the biblical account of the birth of Jesus. The number of species has varied considerably, depending on authority, from 50 to 300.
Document 10: Rhodanthemum: Rhodanthemum syn. "Chrysanthemopsis", "Pyrethropsis" (Moroccan daisy), is a genus of flowering plants in the family Asteraceae, mostly native to exposed rocky places in Northern Africa (Morocco and Algeria). Formerly included in either "Chrysanthemum" or "Leucanthemum", the 10 or 15 species of "Rhodanthemum" display many similarities to their former parents, with composite daisy-like flowers. They are mat-forming, prostrate perennials or subshrubs, and some are cultivated as ornamental plants.
Document 11: Chrysanthemum: Chrysanthemums ( ), sometimes called mums or chrysanths, are flowering plants of the genus Chrysanthemum in the family Asteraceae. They are native to Asia and northeastern Europe. Most species originate from East Asia and the center of diversity is in China. There are countless horticultural varieties and cultivars.
Document 12: Dimorphotheca sinuata: Dimorphotheca sinuata, the glandular Cape marigold, Namaqualand daisy, or orange Namaqualand daisy; syn. "Dimorphotheca aurantiaca" hort.) is an African species of plants native to southern Africa. It is also widely cultivated as an ornamental and naturalized in parts of the United States, primarily California and Arizona.
Document 13: Globularia: Globularia is a genus of about 22 species of flowering plants in the family Plantaginaceae, native to central and southern Europe, Macaronesia, northwest Africa and southwest Asia. They are dense low evergreen mat-forming perennials or subshrubs, with leathery oval leaves 1–10 cm long. The flowers are produced in dense inflorescences (capitula) held above the plant on a 1–30 cm tall stem; the capitula is 1–3 cm in diameter, with numerous tightly packed purple, violet, pink or white flowers.
Document 14: Campanula lactiflora: Campanula lactiflora, the milky bellflower, is a species of flowering plant in the genus "Campanula" of the family Campanulaceae, native to Turkey and the Caucasus. It is a medium-sized herbaceous perennial growing to 1.2 m , with narrow, toothed leaves 5 - long. Large conical clusters of open, star-shaped flowers are produced on branching stems in summer. In favourable conditions it will self-seed with variable results. The flowers are usually white or pale blue, but numerous cultivars have been developed for garden use, in a range of colours.
Document 15: Callianthemum: Callianthemum is a genus that consists of 24 species of little rhizomatous herbs from high mountains in Europe, Central Asia and East Asia. The botanical name comes from the Greek, which means beautiful flower. The plants are low-growing, ornamental perennials and are lovely to rock garden. Leaves are small and radical. Flowers are showy daisy-like, 1.5in in diameter, with 5-15 white or rose-color petals and nectaries at the base. Blooming in spring.
ground_truth: Galanthus