Question: Which genus is more spread around the world Maytenus or Eucommia ?

full_context: Document 1: Myrsine: Myrsine is a genus of flowering plants in the family Primulaceae. It was formerly placed in the family Myrsinaceae before this was merged into the Primulaceae. It is found nearly worldwide, primarily in tropical and subtropical areas. It contains about 200 species, including several notable radiations, such as the matipo of New Zealand and the kōlea of Hawaiʻ i (the New Zealand "black matipo", "Pittosporum tenuifolium", is not related to "Myrsine"). In the United States, members of this genus are known as colicwood. Some species, especially "M. africana", are grown as ornamental shrubs.
Document 2: Eucommia: Eucommia is a genus of small trees now native to China, with a fossil record that shows a much wider distribution. The single living species, "Eucommia ulmoides", is near threatened in the wild, but is widely cultivated in China for its bark, and is highly valued in herbology such as traditional Chinese medicine.
Document 3: Maytenus: Maytenus is a genus of flowering plants in the staff vine family, Celastraceae. Members of the genus are distributed throughout Central and South America, Southeast Asia, Micronesia and Australasia, the Indian Ocean and Africa. They grow in a very wide variety of climates, from tropical to subpolar.
Document 4: Eucommia montana: Eucommia montana is an extinct species of flowering plant in the family Eucommiaceae. "E. montana" is known from fossil fruits found in Eocene deposits of the northwestern United States southeastern British Columbia south to Oregon and east to Montana and Colorado. "E. montana" is one of five described fossil species from North America assigned to the modern genus "Eucommia". The other species are "E. constans", "E. eocenica", "E. jeffersonensis", and "E. rowlandii".
Document 5: Eucommia jeffersonensis: Eucommia jeffersonensis is an extinct species of flowering plant in the family Eucommiaceae. It is known from a fossil fruit found in latest Eocene deposits of Oregon, United States. "E. jeffersonensis" is one of five described fossil species from North America assigned to the modern genus "Eucommia". The other species are "E. constans", "E. eocenica", "E. montana", and "E. rolandii".
Document 6: Tabernaemontana: Tabernaemontana is a genus of flowering plants in the family Apocynaceae. It has a pan-tropical distribution, found in Asia, Africa, Australia, North America, South America, and a wide assortment of oceanic islands. These plants are shrubs and small trees growing to 1–15 m tall. The leaves are evergreen, opposite, 3–25 cm long, with milky sap; hence it is one of the diverse plant genera commonly called "milkwood". The flowers are fragrant, white, 1–5 cm in diameter.
Document 7: Cunninghamia: Cunninghamia is a genus of one or two living species of evergreen coniferous trees in the cypress family Cupressaceae. They are native to China, northern Vietnam and Laos, and perhaps also Cambodia. They may reach 50 m in height. In vernacular use, it is most often known as "Cunninghamia", but is also sometimes called "China-fir" (though it is not a fir). The genus name "Cunninghamia" honours Dr. James Cunningham, a British doctor who introduced this species into cultivation in 1702 and botanist Allan Cunningham.
Document 8: Celastraceae: The Celastraceae (syn. Brexiaceae, Canotiaceae, Chingithamnaceae, Euonymaceae, Parnassiaceae, Siphonodontaceae, and Stackhousiaceae), are a family (the staff vine or bittersweet family) of 96 genera and 1,350 species of herbs, vines, shrubs and small trees, belonging to the order Celastrales. The great majority of the genera are tropical, with only "Celastrus" (the staff vines), "Euonymus" (the spindles) and "Maytenus" widespread in temperate climates.
Document 9: Maytenus krukovii: Maytenus krukovii is a tree species native to the Amazon rainforest; it grows in Bolivia, Colombia, Ecuador, and Peru. With a maximum recorded height of about 30 m , and leaves that span up to 30 cm wide, this large tree contributes significantly to the forest canopy.
Document 10: Mazus: Mazus is a genus of low-growing perennial plants. It has been placed in various plant families including Phrymaceae, Scrophulariaceae, and recently in the family Mazaceae. Consisting of around 30 species, this genus is generally found in damp habitats in lowland or mountain regions of China, Japan, Southeast Asia, Australia and New Zealand.
Document 11: Eucommia eocenica: Eucommia eocenica is an extinct species of flowering plant in the family Eucommiaceae. "E. eocenica" is known from fossil fruits found in the middle Eocene Claiborne Formation deposits of the southeastern United States. "E. eocenica" is one of five described fossil species from North America assigned to the modern genus "Eucommia". The other species are "E. constans", "E. jeffersonensis", "E. montana", and "E. rowlandii".
Document 12: Eucommia rolandii: Eucommia rolandii is an extinct species of flowering plant in the family Eucommiaceae. "E. jeffersonensis" is known from a fossil leaves found in Middle Eocene deposits of British Columbia, Canada and Mississippi, United States. "E. rolandii" is one of five described fossil species from North America assigned to the modern genus "Eucommia". The other species are "E. constans", "E. eocenica", "E. jeffersonensis", and "E. montana".
Document 13: Manettia: Manettia is a genus of flowering plants in the family Rubiaceae. There are between 80 and 123 species. They are distributed in the West Indies, Mexico, and Central and South America. Most are vines. The genus was named after Saverio Manetti.
Document 14: Eucommia constans: Eucommia constans is an extinct species of flowering plant in the family Eucommiaceae. "Eucommia" is a genus of small trees now native to China, with a fossil record that shows a much wider distribution. "E. constans" is known from fossil fruits found in Miocene to Pleistocene deposits of east-central Mexico. "E. constans" is one of five described fossil species from North America assigned to the modern genus "Eucommia". The other species are "E. eocenica", "E. jeffersonensis", "E. montana", and "E. rowlandii".
Document 15: Ulmus parvifolia: Ulmus parvifolia, commonly known as the Chinese elm or lacebark elm, is a species native to eastern Asia, including China, India, Taiwan, Japan, North Korea, and Vietnam. It has been described as "one of the most splendid elms, having the poise of a graceful "Nothofagus"".
ground_truth: Maytenus