Question: Which genus has more species Fatsia or Leuchtenbergia ?

full_context: Document 1: Deinanthe: Deinanthe is a genus consisting of a few species of rare herbaceous-habit rhizomatous plants found in the mountain woodlands of East Asia, ranging from China to Japan. They are handsome clump-forming perennials good for shade, woodland and rock gardens. These attractive deciduous plants have relatively large "fishtail" leaves (cleft at the apex). Deinanthes grow at a slow rate to be bushy and shrub-like, 2ft tall and wide. The leaves attain 3 to 4 inches in length,being deep green, roughly textured, deep veined, cordate at their bases and with serrate margins. The shoots emerge from stout, knobby rhizomes. Leaves are easily damaged in direct sun exposure. Flowering occurs in late summer to early fall. The delicate, waxy, nodding cup-shaped flowers in rich to pale purple-blue, rose or white, are borne in loose terminal clusters. Resembling gargantuan fertile hydrangea flowers, with numerous yellowish to pale blue anthers, they are occasionally accompanied by sterile flowers, as in the lacecap hydrangeas. Roots and leaves are edible.
Document 2: Pachysandra: Pachysandra is a genus of five species of evergreen perennials or subshrubs, belonging to the boxwood family Buxaceae. The species are native to eastern Asia and southeast North America, some reaching a height of 20 - , with only weakly woody stems. The leaves are alternate, leathery, with an entirely too coarsely toothed margin, and are typically 5 - long. The small uni-sexual blooms are greenish-white and produced in late spring or early summer.
Document 3: Tetrapanax: Tetrapanax papyrifer (rice-paper plant, or "通草—tong cao") is an evergreen shrub in the family Araliaceae, the sole species in the genus Tetrapanax. The specific epithet is frequently misspelled as "papyriferum", "papyriferus", or "papyrifera". It is endemic to Taiwan, but widely cultivated in East Asia and sometimes in other tropical regions as well. The species was once included in the genus "Fatsia" as "Fatsia papyrifera".
Document 4: Schlumbergera: Schlumbergera is a small genus of cacti with six species found in the coastal mountains of south-eastern Brazil. Plants grow on trees or rocks in habitats that are generally shady with high humidity, and can be quite different in appearance from their desert-dwelling cousins. Most species of "Schlumbergera" have stems which resemble leaf-like pads joined one to the other and flowers which appear from areoles at the joints and tips of the stems. Two species have cylindrical stems more similar to other cacti. In Brazil, the genus is referred to as "Flor de Maio " (May flower), reflecting the period in which they flower in the Southern Hemisphere.
Document 5: Skimmia: Skimmia is a genus of four species of evergreen shrubs and small trees in the Rue family, Rutaceae, all native to warm temperate regions of Asia. The leaves are clustered at the ends of the shoots, simple, lanceolate, 6-21 cm long and 2-5 cm broad, with a smooth margin. The flowers are in dense panicle clusters, each flower small, 6-15 mm diameter, with 4-7 petals. The fruit is red to black, 6-12 mm diameter, a fleshy drupe containing a single seed. All parts of the plant have a pungent aroma when crushed. The botanical name, "Skimmia", is a Latinization of "shikimi" (シキミ, 樒), which is the Japanese name for "Illicium religiosum" as well as an element in "miyama shikimi" (ミヤマシキミ, 深山樒), the Japanese name for "Skimmia japonica".
Document 6: Boninofatsia: Boninofatsia is a genus of shrubs of family Araliaceae, with two species. The genus is sometimes included in "Fatsia".
Document 7: Ceropegia: Ceropegia is a genus of plants within the family Apocynaceae, native to Africa, southern Asia, and Australia. It was named by Carl Linnaeus, who first described this genus in volume 1 of his "Species plantarum", which appeared in 1753. Linnaeus thought that the flowers looked like a fountain of wax. From this the scientific name was derived: ‘"keros"’ meaning wax and ‘"pege"’ meaning fountain (Pooley, 1998). They have many common names including lantern flower, parasol flower, parachute flower, bushman’s pipe, string of hearts, snake creeper, wine-glass vine, rosary vine, and necklace vine.
Document 8: Opuntia aciculata: Opuntia aciculata, also called Chenille pricklypear, old man's whiskers, and cowboy’s red whiskers, is a perennial dicot and an attractive ornamental cactus native to Texas. It belongs to the genus "Opuntia" prickly pear cacti. It is also widespread in Nuevo Leon, Tamaulipas (northern Mexico).
Document 9: Obregonia: Obregonia, the artichoke cactus, is a genus of cacti with a single species, Obregonia denegrii. The species is endemic to the state of Tamaulipas in Mexico.
Document 10: Echinopsis: Echinopsis is a large genus of cacti native to South America, sometimes known as hedgehog cactus, sea-urchin cactus or Easter lily cactus. One small species, "E. chamaecereus", is known as the peanut cactus. The 128 species range from large and treelike types to small globose cacti. The name derives from "echinos" hedgehog or sea urchin, and "opsis" appearance, a reference to these plants' dense coverings of spines.
Document 11: Oplopanax: Oplopanax is a small genus of flowering plants in the family Araliaceae, consisting of three species of deciduous shrubs, native to western North America and northeastern Asia. "Oplopanax" is closely related to the Asian genus "Fatsia".
Document 12: Fatsia: Fatsia is a small genus of three species of evergreen shrubs native to southern Japan and Taiwan. They typically have stout, sparsely branched stems bearing spirally-arranged, large leathery, palmately lobed leaves 20–50 cm in width, on a petiole up to 50 cm long, and small creamy-white flowers in dense terminal compound umbels in late autumn or early winter, followed by small black fruit.
Document 13: Euphorbia leistneri: Euphorbia leistneri is a species of succulent plant in the Euphorbiaceae family. It is endemic to northwest-Namibia and southwest-Angola near the Kunene river. Its natural habitat is subtropical or tropical dry shrubland. It is threatened by habitat loss. E. leistneri is closely related to Euphorbia monteiri.
Document 14: Leuchtenbergia: Leuchtenbergia principis (agave cactus or prism cactus), the sole species of the genus Leuchtenbergia, is a species of cactus. It is native to north-central Mexico (San Luis Potosi, Chihuahua). The genus is named after Maximilian Eugen Joseph (1817–1852), Duke of Leuchtenberg and amateur botanist.
Document 15: Paulownia: Paulownia is a genus of six to 17 species (depending on taxonomic authority) of flowering plants in the family Paulowniaceae, related to and sometimes included in the Scrophulariaceae. They are present in much of China, south to northern Laos and Vietnam and are long cultivated elsewhere in eastern Asia, notably in Japan and Korea. They are deciduous trees 12 – tall, with large, heart-shaped leaves 15–40 cm across, arranged in opposite pairs on the stem. The flowers are produced in early spring on panicles 10–30 cm long, with a tubular purple corolla resembling a foxglove flower. The fruit is a dry capsule, containing thousands of minute seeds.
ground_truth: Fatsia