Agalinis marianae (Orobanchaceae), a new endangered species endemic to the Quadrilátero Ferrífero, Minas Gerais, Brazil

IF 0.9 4区 生物学 Q4 PLANT SCIENCES Acta Botanica Brasilica Pub Date : 2022-01-01 DOI:10.1590/1677-941x-abb-2021-0318
V. C. Souza, F. D. Gontijo, T. T. Dornas, G. Colletta, A. Scatigna, M. N. Moura
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Abstract

The Quadrilátero Ferrífero (Iron Quadrangle [IQ]), in Minas Gerais, Brazil, exhibits high geological and geomorphological diversity, reflected by its high heterogeneity of vegetation. Its rock outcrops, particularly ironstone, harbor endemic-rich plant communities and contribute substantially to the biodiversity of the biomes they are embedded within the Atlantic Rainforest and Cerrado region. The aim of this study was determining the distribution, phenology and state of conservation of one new species for science with occurrence in the Quadrilátero Ferrífero. Random walks were carried out in the areas of potential occurrence of the species and individuals were collected to allow description. The plant species was identified and categorized as being new to science and known only from this location: Agalinis marianae (Orobanchaceae). This new species is morphologically similar to A. itambensis but can be recognized by the smaller pedicels and the shape of the corolla. The distinct geographic distribution of these species is an additional factor that supports this separation. Here, we describe and illustrate A. marianae , and provide notes on its distribution, habitat, phenology, and conservation status. We also present a key to the species of Agalinis from Minas Gerais.
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巴西米纳斯吉拉斯州Quadrilátero Ferrífero特有的一种濒危新种——马兰花
巴西米纳斯吉拉斯州的Quadrilátero Ferrífero (Iron Quadrangle [IQ])具有高度的地质地貌多样性,植被异质性高。它的岩石露头,特别是铁石,孕育着丰富的特有植物群落,并为大西洋雨林和塞拉多地区的生物群落的生物多样性做出了重大贡献。本研究的目的是确定一种新物种的分布、物候和保护状况,以供科学研究。在该物种可能发生的区域进行随机漫步,并收集个体以进行描述。该植物被鉴定并归类为科学上的新物种,仅在该地点已知:Agalinis marianae (Orobanchaceae)。这个新种在形态上与A. itambensis相似,但可以通过较小的花梗和花冠形状来识别。这些物种的独特地理分布是支持这种分离的另一个因素。本文对麻麻属植物的分布、生境、物候和保护状况进行了描述和说明。我们还提供了来自米纳斯吉拉斯州的Agalinis物种的钥匙。
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来源期刊
Acta Botanica Brasilica
Acta Botanica Brasilica PLANT SCIENCES-
CiteScore
2.30
自引率
9.10%
发文量
32
审稿时长
6-12 weeks
期刊介绍: Experimental, theoretical and applied papers on all aspects of plant (including algae) and fungi biology are welcome. The submitted manuscript or its essential content must not have been published previously or be under consideration for publication elsewhere. Contributions should be substantial, written in high-quality English and show general interest. We expect that the submitted manuscript presents a great novelty in Botany, and this should attract a wide audience. Considering this, case studies are only considered if the narrative and implications are provided to be of general interest. Thus, manuscripts that report aspects of local interest are discouraged unless the implications of the findings are wide-reaching. Manuscripts with agronomic subjects are expected to contain a substantial amount of basic plant biology. Please see below some details for specific area.
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