Morphological and Genetic Evidence for the Stigmatodon goniorachis Complex (Tillandsioideae, Bromeliaceae) Reveals a New Species on Inselbergs in the Brazilian Atlantic Forest

This dataset contains the digitized treatments in Plazi based on the original journal article Manhães, Vitor da Cunha, Couto, Dayvid Rodrigues, Salgueiro, Fabiano, Costa, Andrea Ferreira da (2025): Morphological and Genetic Evidence for the Stigmatodon goniorachis Complex (Tillandsioideae, Bromeliaceae) Reveals a New Species on Inselbergs in the Brazilian Atlantic Forest. Systematic Botany (Basel, Switzerland) 49 (4): 673-694, DOI: 10.1600/036364424X17319705780145, URL: doi.org/10.1600/036364424x17319705780145 Abstract —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. Bayesian population structure analysis based on nuclear microsatellites performed on 145 individuals from six populations initially identified as S. costae, S. francae, and S. goniorachis revealed four genetic clusters (k = 4), two of which consisted of specimens initially identified as S. goniorachis.