Question: Which genus, Shortia or Schizophragma, has more species?

full_context: Document 1: Kirengeshoma: Kirengeshoma is a genus containing two species of plants in the hydrangea family. Both are clump-forming perennials native to Eastern Asia, with sycamore-like palmate leaves and nodding, waxy yellow flowers on slender stalks, growing in shady environments. They are grown as garden plants in temperate regions of the world.
Document 2: Dichroa: Dichroa is a genus of 12 species of flowering plants in the family Hydrangeaceae, native to eastern and southeastern Asia. They are deciduous shrubs growing to 1-3 m tall, with their leaves arranged in opposite pairs. The flowers are produced in a broad inflorescence similar to that of the related genus "Hydrangea". The fruit is a glossy metallic purple-blue berry.
Document 3: Wisteria: Wisteria (also spelled Wistaria or Wysteria) is a genus of flowering plants in the legume family, Fabaceae (Leguminosae), that includes ten species of woody climbing vines native to the Eastern United States and to China, Korea, and Japan. Some species are popular ornamental plants. An aquatic flowering plant with the common name wisteria or 'water wisteria' is in fact "Hygrophila difformis", in the family Acanthaceae.
Document 4: Diapensiaceae: Diapensiaceae is a small family of flowering plants, comprising 12 species in five genera. Three of the genera, "Berneuxia", "Galax", and "Pyxidanthera", contain only a single species. The Asian species of "Shortia" were formerly separated as the genus "Schizocodon", and some authors still recognize "S. soldanelloides" under that name. Another genus, "Diplarche", was included in the family by some authors but is now regarded as a member of Ericaceae.
Document 5: Bulbophyllum abbrevilabium: Bulbophyllum abbrevilabium, also known as the Short Lipped Bulbophyllum, is a warm-growing species of orchid in the genus "Bulbophyllum". It is found in the Southeast Asian countries Thailand, Malaysia and Vietnam.
Document 6: 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 7: Jeffersonia: Jeffersonia which is also known as twinleaf or rheumatism root, is a small genus of herbaceous perennial plants in the family Berberidaceae. They are uncommon spring wildflowers, which grow in limestone soils of rich deciduous forests. "Jeffersonia" was named for United States President Thomas Jefferson, by his contemporary Benjamin Smith Barton. This genus was formerly grouped in genus "Podophyllum". Twinleaf is protected by state laws as a threatened or endangered plant in Georgia, Iowa, New York, and New Jersey.
Document 8: Caulophyllum: Caulophyllum is a small genus of perennial herbs in the family Berberidaceae. It is native to eastern Asia and eastern North America. These plants are distinctive spring wildflowers, which grow in moist, rich woodland, it is known for its large triple-compound leaf, and large blue, berry-like fruits. Unlike many spring wildflowers, it is not an ephemeral plant and persists throughout much of the summer. Common names for plants in this genus include Blue Cohosh, Squaw Root, and Papoose Root. As hinted at by its common names, this plant is well known as an alternative medicine for inducing childbirth and menstrual flow; it is also considered a poisonous plant.
Document 9: Schizophragma: Schizophragma (hydrangea vine) is a genus of four species of flowering plants in the family Hydrangeaceae, native to moist woodland in Asia, from the Himalayas east to Taiwan and Japan. They are vigorous, hardy deciduous lianas growing to 12 m , cultivated for their showy flower heads borne in mid- to late summer, resembling those of the related lacecap hydrangeas.
Document 10: Chaenomeles: Chaenomeles is a genus of three species of deciduous spiny shrubs, usually 1–3 m tall, in the family Rosaceae. They are native to Japan, Korea, China, Bhutan, and Burma. (Burmese: ချဉ်စော်ကား ) These plants are related to the quince ("Cydonia oblonga") and the Chinese quince ("Pseudocydonia sinensis"), differing in the serrated leaves that lack fuzz, and in the flowers, borne in clusters, having deciduous sepals and styles that are connate at the base.
Document 11: Fargesia: Fargesia is a genus of Asian bamboo in the grass family. They are native primarily to China, with a few species in Vietnam and in the eastern Himalayas. Some species are cultivated as ornamentals, with common names include umbrella bamboo and fountain bamboo.
Document 12: 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.
Document 13: Hydrangea: Hydrangea ( ; common names hydrangea or hortensia) is a genus of 70–75 species of flowering plants native to southern and eastern Asia (China, Japan, Korea, the Himalayas, and Indonesia) and the Americas. By far the greatest species diversity is in eastern Asia, notably China, Japan, and Korea. Most are shrubs 1 to 3 meters tall, but some are small trees, and others lianas reaching up to 30 m by climbing up trees. They can be either deciduous or evergreen, though the widely cultivated temperate species are all deciduous.
Document 14: Shortia: Shortia is a small genus of subshrubs or perennial herbs in the family Diapensiaceae. There are five species, four in Asia and one in the Appalachian Mountains of eastern North America. They are found in mountainous areas, generally from 1000 – elevation. All have restricted ranges and are generally considered rare. Three of the species, "S. galacifolia", "S. soldanelloides", and "S. uniflora" are often cultivated. The genus was by Asa Gray named after botanist Charles Wilkins Short. In Gray's diary entry for April 8, 1839, he named the genus after Charles Wilkins Short because the plant was native to America in a region close to where Short lived, which was Kentucky. Short and Gray never met but they corresponded with one another frequently. Short never saw a live nor dried specimen of his namesake genus.
Document 15: Rhododendron minus: Rhododendron minus, the Piedmont rhododendron, is a rhododendron species native to Tennessee, North Carolina, South Carolina, Georgia, and Alabama. It has two subspecies: "Rhododendron minus" var. "chapmanii" and "Rhododendron minus" var. "minus" (the latter also known as "Rhododendron carolinianum").
ground_truth: Shortia