Question: Which Genus has four species, Duboisia or Ctenanthe?

full_context: Document 1: Eucalyptus pilularis: Eucalyptus pilularis, commonly known as blackbutt, is a common and dominant tree of the family Myrtaceae native to southeastern Australia. A large tree, it is identified by the stocking of rough bark, to about halfway up the trunk, above this is white smooth bark. The leaves are a uniform glossy to dark green and the white flowers occur from September to March. Blackbutt is the predominant tree species seen on the drive on the Pacific Highway between Taree and Coffs Harbour. Blackbutt is a koala food tree. Economically, it is one of Australia's most important hardwoods.
Document 2: Centradenia: Centradenia is a genus of 4-5 species of tropical evergreen perennials or subshrubs, native to Central America and Mexico.
Document 3: Melaleuca: Melaleuca is a genus of nearly 300 species of plants in the myrtle family, Myrtaceae, commonly known as paperbarks, honey-myrtles or tea-trees (although the last name is also applied to species of "Leptospermum"). They range in size from small shrubs that rarely grow to more than 1 m (3 ft) high, to trees up to 35 m (100 ft). Their flowers generally occur in groups, forming a “head” or “spike” resembling a brush used for cleaning bottles, containing up to 80 individual flowers. They are superficially like "Banksia" species, which also have their flowers in a spike, but the structures of individual flowers in the two genera are very different.
Document 4: Stromanthe: Stromanthe is a genus of plant in family Marantaceae, native to the tropical portions of the Americas from Mexico to Trinidad to northern Argentina.
Document 5: Peltophorum dubium: Peltophorum dubium is a tree in the Fabaceae family, and subfamily Caesalpinioideae. This species is known as the "Ibirá-pitá" in Argentina and Paraguay, "arbol de Artigas" in Uruguay, and "Cambuí" in Brazil. It is a large tree, growing around 20–25 meters, with a rectangular trunk.
Document 6: Levenhookia dubia: Levenhookia dubia, the hairy stylewort, is a dicotyledonous plant that belongs to the genus "Levenhookia" (family Stylidiaceae). It is an ephemeral annual that grows from 2 - tall with obovate leaves that are generally 2 – long. Flowers are white and bloom from September to October in its native range. "L. dubia" is most closely related to "L. sonderi", which has been described as a variety of "L. dubia" in the past. It is endemic to Australia and has native ranges in Western Australia, South Australia, New South Wales, and Victoria. Its habitat has been reported as being sandy soils in granite outcrops.
Document 7: Acanthaceae: Acanthaceae is a family (the acanthus family) of dicotyledonous flowering plants containing almost 250 genera and about 2500 species. Most are tropical herbs, shrubs, or twining vines; some are epiphytes. Only a few species are distributed in temperate regions. The four main centres of distribution are Indonesia and Malaysia, Africa, Brazil, and Central America. The representatives of the family can be found in nearly every habitat, including dense or open forests, scrublands, wet fields and valleys, sea coast and marine areas, swamps, and mangrove forests.
Document 8: Ctenanthe: Ctenanthe is a genus of flowering plants of the family Marantaceae described as a genus in 1884. They are evergreen perennials, native to Central and South America (primarily Brazil). They are grown for their attractive, often variegated foliage. They are frost tender, requiring a minimum temperature of 13 C .
Document 9: Duboisia: Duboisia (commonly called corkwood tree) is a genus of small perennial shrubs and trees up to 14 metres (46 feet) tall, with extremely light wood and a thick corky bark. There are four species; all occur in Australia, and one also occurs in New Caledonia.
Document 10: Diospyros: Diospyros is a genus of over 700 species of deciduous and evergreen trees and shrubs. The majority are native to the tropics, with only a few species extending into temperate regions. Depending on their nature, individual species are commonly known as ebony or persimmon trees. Some are valued for their hard, heavy, dark timber, and some for their fruit. Some are useful as ornamentals and many are of local ecological importance.
Document 11: Darwinia diosmoides: Darwinia diosmoides is a shrub which is endemic to the south-west of Western Australia. It usually grows to between 0.3 and 1.2 metres in height and produces white flowers. The species was formally described in 1828 by Swiss botanist Augustin Pyramus de Candolle who gave it the name "Genetyllis diosmoides". It was transferred to the genus "Darwinia" in 1865 by English botanist George Bentham.
Document 12: Pilea cadierei: Pilea cadierei (aluminium plant or watermelon pilea) is a species of flowering plant in the family Urticaceae, native to China and Vietnam. It is an evergreen perennial growing up to 30 cm tall by 21 cm broad, with dark green oval leaves, each leaf having four raised silvery patches (hence the name "aluminium plant"). With a minimum temperature of 15°C (59°F), it is cultivated as a houseplant in temperate regions. It has gained the Royal Horticultural Society's Award of Garden Merit.
Document 13: Leitneria: Leitneria floridana (corkwood), the sole species in the genus Leitneria, is a deciduous dioecious shrub or small tree, found only in the southeastern United States states of Arkansas, Florida, Georgia, Missouri and Texas.
Document 14: Chlidanthus: Chlidanthus is a genus that consists of 10 species of tender bulbs from tropical South America, mostly natives to the Andes. The botanical name comes from the Greek, meaning "delicate flower". The plants have large spherical bulbs with gray-green, strap-shaped leaves 30cm long arising from the base. In late spring to early summer, clusters of 3-4 large, strong citrus-scented fragrant, funnel-shaped flowers 10-13cm long held terminally on stalks 25cm high, colored in yellow, pink or red.
Document 15: Guzmania: Guzmania (tufted airplant) is a genus of over 120 species of flowering plants in the botanical family Bromeliaceae, subfamily Tillandsioideae. They are mainly stemless, evergreen, epiphytic perennials native to Florida, the West Indies, southern Mexico, Central America, and northern and western South America. They are found at altitudes of up to 3500 m in the Andean rainforests.
ground_truth: Duboisia