Here, we list in botanical order only the orders and families that occur in the New World.
LAURALESSIPARUNACEAE
Colombia leads in Siparuna (32 ✕ 19), the single New World genus.
LAURACEAE ‣ All New World genera in South America except Lindera (94, 91 in Asia to Queensland, 3 in SE Canada to C & E U.S.A.), Litsea (397, 387 in tropical & subtropical Asia, and 10 in SE. U.S.A. to Costa Rica), Sassafras (3, 2 in S China to Vietnam, Taiwan, 1 in SE Canada to C & E U.S.A.), Umbellularia (1, Oregon to NW México) and Tamala (3, SE U.S.A. to E Texas, Bahamas).
Three South America genera does not occur in Brazil: Yasunia (2), Chlorocardium (3) and Andea (25), and Brazil has three endemic genera.
Mexico leads against Brazil only in 4 genera: Umbellaria, Litsea (both Brazilian absents), Beilschmiedia (10 ✕ 8) and Damburneya (14 ✕ 1).
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MONIMIACEAE
All New World genera occur in Brazil except Peumus and Laureliopsis from Argentina and Chile. Compared to Mexico and Colombia, Brazil leads in species diversity in all New World tropical genera.
HERNANDIACEAE
Mexico leads in Gyrocarpus (4 ✕ 1) and Hernandia (4 ✕ 1) against Brazil. Colombia leads in Hernandia (2 ✕ 1) against Brazil.
CANELLALES
CANELLACEAE
Family absent in Colombia. Mexico (Canella) 1 ✕ 6 (Cinnamodendron) 6 Brazil.
WINTERACEAE
In New World, Brazil and Chile lead with 3 spp. each.
HYDNORACEAE ‣ family absent in Mexico and Colombia.
CERATOPHYLLALES
CERATOPHYLLACEAE
Brazil, Colombia and Mexico has the same species in this order.
DILLENIALES
DILLENIACEAE
All New World genera occur in Brazil. All genera leads by Brazil except Neodillenia leading by Colombia (2 ✕ 1).
CARYOPHYLLALES
DROSERACEAE ‣ Brazil leads absolutely against Colombia and Mexico.
GENTIANALES
LOGANIACEAE
All New World genera in Brazil. Brazil leads in all genera among Mexico and Colombia.
GELSEMIACEAE
Brazil and Mexico ha two spp. both. Absent in Colombia.
SOLANALES
HYDROLEACEAE
Brazil, Mexico and Colombia two spp. each.
LAMIALES
OLEACEAE ‣ Mexico includes br-outliers Cartrema, Fraxinus, Hesperalea and Forestiera. Brazil leads in Chionanthus against Mexico and Colombia. Mexico leads in Menodora. Priogymnanthus does not occur in Mexico.
TETRACHONDRACEAE ‣ only one sp. in tropical America, Polypremum procumbens L., from C & SE U.S.A. to America Central, Caribbean, NE Colombia to Suriname.
PELTANTHERACEAE ‣ a single species, Peltanthera floribunda Benth. & Hook.f., from Costa Rica to Bolivia.
CALCEOLARIACEAE ‣ 21 spp. in Colombia and 4 in Mexico. Only one in Brazil.
GESNERIACEAE ‣ Brazil and Mexico has equal number of genera. Mexico includes 15 Brazilian outsiders: Achimenes (24), Alloplectus (1), Alsobia (5), Amalophyllon (3), Eucodonia (2), Gasteranthus (1), Glossoloma (2), Kohleria (3), Moussonia (19), Niphaea (3), Pachycaulos (1), Rhynchoglossum (1), Smithiantha (6), Solenophora (13), Trichodrymonia (1). Among 12 common genera, Mexico leads only in Columnea (10 ✕ 7) and Diastema (2 ✕ 1).
PLANTAGINACEAE ‣ Mexico includes 30 genera, Brazil 21. Mexico includes 21 Brazilian outsiders genera: Collinsia (3), Epixiphium (1), Gambelia (4), Hippuris (1), Keckiella (3), Linaria (2), Lophospermum (7), Mabrya (5), Maurandella (1), Maurandya (2), Mohavea (1), Neogaerrhinum (2), Penstemon (64), Pseudorontium (1), Rhodochiton (3), Russelia (45), Sairocarpus (4), Schistophragma (4), Sibthorpia (1), Tetranema (2) and Uroskinnera (3). Among the nine common genera, Mexico leads in Callitriche (6 ✕ 3), Plantago (20 ✕ 19), Stemodia (15 ✕ 11) and Veronica (5 ✕ 1).
Colombia has 19 genera, two fewer Brazil. Colombia includes Brazil outsiders Aragoa (17), Linaria (1), Ourisia (2), Russelia (1), Schistophragma (1) and Sibthorpia (1). Among common genera, Colombia leads in Callitriche (6 ✕ 3) and Veronica (2 ✕ 1).
SCROPHULARIACEAE ‣ Mexico includes Brazilian outsiders Alonsoa (1), Eremogeton (1), Leucophyllum (17) and Scrophularia (3). Among common genera, Mexico leads in Capraria (5 ✕ 1) and Limosella (2 ✕ 1). Both countries tied in Buddleja. Colombia has Alonsoa (2) and leads in Limosella (2 ✕ 1).
LINDERNIACEAE ‣ Brazil leads against Mexico and Colombia in all common genera (all colombian and mexican genera occur in Brazil).
VERBENACEAE ‣ Brazil has 14 genera and Mexico has 13. Mexico includes one Brazilian outsider: Rehdera (2), and leads in Bouchea (6 ✕ 4), Citharexylum (38 ✕ 7), Duranta (3 ✕ 1), Phyla (4 ✕ 2), Priva (6 ✕ 2) and Tamonea (3 ✕ 2). Colombia includes one genus absent in Brazil: Junellia (1), and leads in Citharexylum (10 ✕ 7) and Duranta (9 ✕ 1).
SCHLEGELIACEAE ‣ Colombia includes two genera absent in Brazil: Exarata (1) and Gibsoniothamnus (1), and leads in Schlegelia (16 ✕ 6). Mexico includes Gibsoniothamnus (1).
MARTYNIACEAE ‣ Mexico and Brazil are fully disjunct in genera. Mexico includes Martynia (2) and Proboscidea (6).
BIGNONIACEAE ‣ Colombia has more genera tham Brazil in Bignoniaceae. Colombia inludes 8 Brazilian outsiders Amphitecna (3), Delostoma (1), Eccremocarpus (1), Parmentiera (1), Romeroa (1), Roseodendron (2), Tecoma (1) and Tourretia (1). Mexico inludes 8 Brazilian outsiders: Amphitecna (12), Astianthus (1), Chilopsis (1), Parmentiera (3), Roseodendron (1), Tecoma (1) and Tourretia (1). Among shared genera, Colombia leads only in Crescentia (2 ✕ 1). Among shared genera, Mexico leads also only in Crescentia (3 ✕ 1).