Data from: Morphological and genetic evidence for the Stigmatodon goniorachis complex (Tillandsioideae, Bromeliaceae) reveals a new species on inselbergs in the Brazilian Atlantic Forest

This study evaluated the morphological variation and genetic structure of
seven natural populations of the Stigmatodon goniorachis complex
(Bromeliaceae) endemic to vertical faces of inselbergs in the Brazilian
Atlantic Forest. A cluster analysis and Principal Component Analysis (PCA)
corroborated the existence of four clearly separated species, S.
brassicoides, S. costae, S. francae, and S. goniorachis, and unveiled two
distinct morphological groups in the S. goniorachis populations. The main
components of variation revealed by PCA analysis were: inflorescence
peduncle diameter, floral bract length, and hypanthium length. Both
morphological and genetic analyses indicated two distinct groups among the
four populations initially identified as S. goniorachis, which led to the
recognition of a new species described here, Stigmatodon carioca.
 Besides the description of the new species, we present a
comparative study that allows the morphological differentiation of the
five species.