Fabaceae at National Forest (FLONA) of Assú, potiguar semiarid, Brazilian northeastern Louise

Fabaceae is the most diverse family in the flora of Brazil, including the Caatinga vegetation, the main natural region of the Brazilian Northeastern. This work consists in a taxonomic study of the family Fabaceae at the National Forest (FLONA) of Assú, Assú municipality, Rio Grande do Norte State, Brazil. Thirty seven species in twenty two genera and three subfamilies were recorded: Caesalpinioideae (07 spp.), Mimosoideae (11 spp.) and Papilionoideae (19 spp.), which Poincianella bracteosa, Mimosa camporum, Mimosa sensitiva, Galactia jussiaeana, Stylosanthes humilis and Vigna peduncularis representing new occurrences to the flora of the state. Keys for identification of its species, comments on the taxonomy, geographical distribution and flowering and fructification data, as well as illustrations for the species are presented.

豆科（Fabaceae）是巴西植物区系中物种多样性最高的科，其分布覆盖巴西东北部主要自然植被类型——卡廷加（Caatinga）植被。本研究针对巴西北里奥格兰德州阿苏市阿苏国家森林公园（FLONA）开展豆科植物的分类学研究。本研究共记录到隶属于3个亚科、22属的37种豆科植物，分别为云实亚科（Caesalpinioideae，7种）、含羞草亚科（Mimosoideae，11种）与蝶形花亚科（Papilionoideae，19种）；其中Poincianella bracteosa、Mimosa camporum、Mimosa sensitiva、Galactia jussiaeana、Stylosanthes humilis及Vigna peduncularis为该州植物区系的新记录物种。本研究同时提供了该类群的物种鉴定检索表，包含各物种的分类学评述、地理分布信息、开花与结果物候数据，并配有物种形态插图。