Plantae, Liliopsida, Arales, Araceae, Dracontioides desciscens, Lemna aequinoctialis and Montrichardia linifera: Distribution extension and first records for state of Sergipe, Brazil

The state of Sergipe is located in the east of Brazilian northeastern, with an area of 21,910 km 2 , 75 municipalities and approximately 1,7 million inhabitants. The flora of Sergipe occurs in different types of vegetation and although it is in a fairly advanced stage of degradation it has been little studied. Among the 23 families of monocots that occur in the state, Araceae stand out for its wide variety of forms of life and habitats, with some terrestrial species, living directly on the soil or in crevices between rocks, while others are aquatic fixed or floating. About 70 % of the species of families are epiphytes, hemiepiphytes or climbing (Grayum 1990). The presence of spathe and inflorescence in spadix, with small and actinomorphic flowers are some of the morphological characteristics of this family, which has 110 genera and about 4000 species distributed worldwide (World Checklist of Selected Plant Families 2008), taking as diversity center the neotropical humid forests (Temponi 2005). In Brazil occur approximately 36 genera and 416 species. For the Northeast region are listed 85 species, distributed in 24 genera.