Two new endangered species of Polygala series Trichospermae (Polygalaceae), endemic to the Cerrado domain, Tocantins State, Brazil

Abstract

The Cerrado domain is the most diverse savannah biome in the world and a biodiversity hotspot for conservation. Only a few areas of the domain remain well preserved, among them the Jalapão region in Tocantins State, currently is considered the best preserved area of the Brazilian Cerrado. Listed in a recent Angiosperm checklist for the region, there were two species of Polygala series Trichospermae, which were recognized as new by the first author. Polygala bringelii sp. nov., endemic to the Jalapão region, is diagnosed by its obclavate seeds without a ring of trichomes at their base, keel with the crest shorter than the cuculus, and the internal sepals (wings) longer than the capsule. Polygala tocantinensis sp. nov., endemic to Tocantins state, is distinguished by its internal sepals (wings) with two glands near to the rounded apex, and a ring of convergent trichomes at the base of the seeds. The two species are morphologically closest with Polygala trichosperma of sect. Timutua, series Trichospermae, but differs in its corolla and seeds shape and pubescence. An identification key, photographic plates, photos of floral parts under magnification, preliminary conservation assessments, and ecological comments of both species are also provided.

Still on the Stachytarpheta longispicata complex (Verbenaceae): two new narrowly endemic species from the Cerrado domain of Central Brazil

“…Furthermore, it is important to highlight that the great sampling effort by Antar and Sano (2019) to document the flora of the Jalapão region in State of Tocantins has revealed several new and rare species (such as Bonamia campestris Moreira and Simao‐Bianch, Chamaecrista tocantinensis Mendes and Silva, Couepia brevistaminea Barbosa‐Silva and Antar, Dioscorea compacta Araújo, Dyckia oreadica Forzza and Antar, Euphorbia adenoplicata Silva and Cordeiro, Polygala bringelii Pastore and Antar, P. tocantinensis Pastore and Antar, Homalolepis tocantina (Devecchi and Pirani) Devecchi and Pirani, Turnera fasciculifolia Rocha and Arbo). Most of them were described based on only a single or few gatherings (Devecchi and Pirani 2015, Araújo et al 2016, Mendes et al 2017, Moreira et al 2017, Barbosa‐Silva and Antar 2020, Marques‐Silva et al 2020, Rocha et al 2020, Antar et al 2021., Pastore and Antar 2021), as is the case of the S. longibracteata . Therefore, the finding of S. longibracteata alongside these several new species in the Jalapão region may stimulate conservation and botanical sampling efforts in this floristically rich region of the Cerrado domain (Antar and Sano 2019).…”

Análise da aplicabilidade dos artefatos gerenciais utilizados nos meios de hospedagem da cidade de Rosana – SP

“…O termo controle é um dos processos mais utilizados na prática gerencial, e sua função consiste na comparação entre os resultados desejados com os realizados, tendo o propósito de garantir que o desempenho está dentro dos padrões esperados e assim, identificar os pontos que necessitam ser corrigidos (FLORIANO;LOZECHYI, 2008). Desse modo, o controle administrativo e contábil fornece aos gestores ferramentas que permitem a revisão das ações adotadas durante o processo de implementação do plano, para que possam ser corrigidas e colocadas em conformidade com o objetivo do planejamento, para que de fato, as metas sejam alcançadas.…”