<p><strong>A new critically endangered species of <em>Bertolonia</em> (Melastomataceae, Bertolonieae) from Espírito Santo, Brazil</strong></p>

Abstract

We describe here Bertolonia lucernula, a new endemic species from the state of Espírito Santo, Brazil. It is only known from one locality, the “Área de Proteção Ambiental Mestre Álvaro”, in the municipality of Serra. The new species can be recognized by the branches and petioles covered with sessile and short-stalked glands and scattered unbranched trichomes, flat leaf blade surfaces covered only with sessile and short-stalked glands, small flowers with a widely campanulate hypanthium covered with the same trichomes as the petioles, calyx with membranaceous, truncate sepals, and short, triangular external teeth, asymmetric and obovate petals, with the apex covered with sessile and short-stalked glands on the adaxial surface. According to IUCN criteria, Bertolonia lucernula should be classified as Critically Endangered (CR).

The genus Ipomoea (Convolvulaceae) in the state of Rio Grande do Norte, Brazil

“…These numbers are based on initial studies in areas of dense ombrophilous forest (Goldenberg & Reginato 2006;Iglesias & Dutra 2017) and restinga (Souza et al 2016), followed by more detailed studies of Miconia (Bacci et al 2016), Behuria, Cambessedesia, Dolichoura, Huberia and Merianthera (Bochorny & Goldenberg 2017) and Bertolonia (Bacci et al 2017). Further, the family is also notable for its strong regional endemism (e.g., Goldenberg & Tavares 2007;BFG 2018;Goldenberg & Reginato 2009;Goldenberg & Kollmann 2010Camargo & Goldenberg 2011;Caddah & Goldenberg 2012;Bacci & Goldenberg 2015;Iglesias et al 2016;BFG 2018;Bacci et al 2020;Goldenberg et al 2020).…”

Flora of Espírito Santo: tribe Microlicieae (Melastomataceae)

“…The family has been the subject of floristic treatments in several localities in the state (Goldenberg & Reginato 2006;Meirelles & Goldenberg 2012;Iglesias & Dutra 2017). Furthermore, a substantial amount of new species were described in the last 20 years (Guimarães & Goldenberg 2001;Goldenberg & Reginato 2007Goldenberg & Tavares 2007;Tavares et al 2008;Goldenberg & Kollmann 2010, 2016Camargo & Goldenberg 2011;Meirelles et al 2012;Caddah & Goldenberg 2012Bacci et al , 2020Iglesias et al 2016;Bochorny & Goldenberg 2019;Bisewski et al 2020;Goldenberg et al 2020b). For the Flora of Espírito Santo, there are treatments for the genera Behuria, Cambessedesia, Dolichoura, Huberia, and Merianthera (Bochorny & Goldenberg 2017), Bertolonia (Bacci et al 2017), and Miconia .…”