Couto et al. 2023b (Article) Stigmatodon

A new epilithic bromeliad (Stigmatodon, Tillandsioideae) from Pedra dos Três Pontões, Espírito Santo, Brazil, with an emended combination for the genus

Author(s):—D.R. Couto, A.P. Fontana, A.F. da Costa & C.N. de Fraga

Publication:—Plant Ecology and Evolution 156(2): 215-224. (2023) — DOI

Abstract:—Background and aims ? Stigmatodon (Bromeliaceae) is a monophyletic genus currently comprising 33 species, all endemic to rocky outcrops, mainly inselbergs, from the Atlantic Forest and campos rupestres of the Espinha?o range, Brazil.
Material and methods ? Our fieldwork in the inselbergs of the Atlantic Forest of the state of Esp?rito Santo led to the discovery of a new Stigmatodon species with a tubo-laciniate stigma type. Standard herbarium taxonomy practices were adopted to study the novelty. Morphological data were obtained from herbarium specimens and fresh material collected in the field.
Key results ? Stigmatodon lemeanus is here described and illustrated. Diagnostic characters and affinities of the new species are discussed, accompanied by notes on its ecology, geographic distribution, and conservation status. A key to the species of Stigmatodon from Esp?rito Santo state is provided. The novelty is similar to S. goniorachis from coastal inselbergs of Rio de Janeiro and S. attenuatoides, another inselberg endemic from southern Esp?rito Santo. Stigmatodon lemeanus is preliminarily assessed as Vulnerable (VU) according to the IUCN Red List criteria. Additionally, we present a new combination of Tillandsia oligantha in Stigmatodon, correcting a nomenclatural error.

Keywords:—Atlantic Forest, Brazilian endemics, campo rupestre, inselbergs, taxonomy, Vrieseinae

Published names (2):

Stigmatodon lemeanus
Stigmatodon oliganthus