TAXONOMIC REVISION OF BARBACENIA (VELLOZIACEAE) ATLANTIC FOREST INSELBERG GROUP, WITH TWO NEW SPECIES

The systematics of the Barbacenia Vand. Atlantic Forest Inselberg group (Barbacenia AFI), and the description of two new AFT species, B. amphirupia Mello-Silva & Andr. Cabral and B. maritima Mello-Silva & Andr. Cabral, are here presented. Lectotypes are designated for B. fannieae (N. L Menezes) Mello-Silva, B. mantiqueirae Goethart & Henrard, B. purpurea Hook. var. minor Seub., B. squamata Herb., and Vellozia coerulescens Hort. Belg. ex Gumbl., and a neotype is designated for B. foliose Goethart & Henrard. Barbacenia burlemarxii L. B. Sm. & Ayensu was placed into synonymy of B. pabstiana L. B. Sm. & Ayensu, B. caricina Goethart & Henrard of B. brevifolia Taub., B. gamen.sis Goethart & Henrard, B. foliosa , B. purpurea var. minor, and B. seubertiana Goethart & Henrard under B. squamata, B. ionantha. L B. Sm. and B. mantkola L. B. Sm. & Ayensu under B. irwiniana L. B. Sm., and V coerulescens under B. purpurea. An identification key and morphological and anatomical descriptions for the species are presented, as well as comments on the affinities among the species, geographical distribution, and conservation status.