Seven new species are described from the southeast region of Brazil. Six species are endemic: two to the state of Espirito Santo (A. boudetii and A. Jragae), two to the state of Rio de Janeiro (A. bragae and A. simonii) and two to the state of Sao Paulo (A. victorii and A. unense). The species distributed in more than one state is A. gomesianum in Minas Gerais and Espfrito Santo. All the species belong to the section Urospadix, subsection Flavescentiviridia, and found in the Atlantic Forest. Descriptions, illustrations and comments on geographical distribution, ecology, phenology and conservation status are provided for each species.