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Lapaea (Plantaginaceae, Gratioleae), a new genus endemic to the Espinhaço Range (Brazil) with a remarkable red-flowered new species
Systematics and Biodiversity ( IF 1.8 ) Pub Date : 2020-06-24 , DOI: 10.1080/14772000.2020.1771470
André Vito Scatigna 1, 2 , Vinicius Castro Souza 1 , Raquel Moura Machado 2 , André Olmos Simões 2
Affiliation  

Stemodia sensu lato is one of the largest genera of the Gratioleae (Plantaginaceae). Recent phylogenetic studies corroborated the paraphyly of Stemodia in its traditional circumscription and suggested the segregation of S. stellata from this genus. This species belongs to a morphologically cohesive group along with S. cipoensis, S. harleyi and S. lobata, all endemic to the Espinhaço Range, eastern Brazil. In this study, we tested the monophyly and interspecific relationships of this group by reconstructing its phylogeny, based on sequences of three cpDNA regions (rps16 and trnL introns and the trnL–trnF intergenic spacer), and one nrDNA region (ITS1 spacer), using Maximum parsimony and Bayesian inference. The monophyly of the 'S. stellata group' was confirmed, and its segregation from Stemodia corroborated. We propose Lapaea as a new genus to accommodate its species, with subsequent four new combinations: L. cipoensis, L. harleyi, L. lobata, and L. stellata. Additionally, we describe and illustrate L. rubriflora, a remarkable red-flowered new species, based on morphological and micromorphological evidence. Lastly, a taxonomic revision of the species recognized in Lapaea is presented, providing an identification key, photos, descriptions, distribution map and notes on their morphology, geographic distribution, habitat, ecology, and conservation status. Lapaea is restricted to the Espinhaço Range comprising five threatened species, each of them with a narrow distribution and phylogenetic relationships consistent with biogeographic provinces.

中文翻译:

Lapaea (Plantaginaceae, Gratioleae),Espinhaço Range(巴西)特有的新属,具有显着的红花新种

Stemodia sensu lato 是禾本科(车前科)中最大的属之一。最近的系统发育研究证实了 Stemodia 在其传统范围内的并系,并建议 S. stellata 与该属分离。该物种与 S. cipoensis、S. harleyi 和 S. lobata 属于形态学上一致的组,它们都是巴西东部埃斯皮尼亚索山脉的特有种。在这项研究中,我们基于三个 cpDNA 区域(rps16 和 trnL 内含子和 trnL–trnF 基因间隔区)和一个 nrDNA 区域(ITS1 间隔区)的序列,通过重建其系统发育来测试该组的单系和种间关系,使用最大简约和贝叶斯推理。'S 的单一性。stellata group' 得到确认,并且它与 Stemodia 的分离得到证实。我们建议将 Lapaea 作为一个新属以适应其物种,随后有四种新组合:L. cipoensis、L. harleyi、L. lobata 和 L. stellata。此外,我们根据形态学和微形态学证据描述和说明了 L. rubriflora,一种显着的红花新物种。最后,介绍了在 Lapaea 中识别的物种的分类学修订,提供了识别密钥、照片、描述、分布图以及关于它们的形态、地理分布、栖息地、生态和保护状况的注释。Lapaea 仅限于 Espinhaço 山脉,包括五种受威胁物种,每种物种的分布范围很窄,系统发育关系与生物地理省份一致。星状。此外,我们根据形态学和微形态学证据描述和说明了 L. rubriflora,一种显着的红花新物种。最后,介绍了在 Lapaea 中识别的物种的分类学修订,提供了识别密钥、照片、描述、分布图以及关于它们的形态、地理分布、栖息地、生态和保护状况的注释。Lapaea 仅限于 Espinhaço 山脉,包括五种受威胁物种,每种物种的分布范围很窄,系统发育关系与生物地理省份一致。星状。此外,我们根据形态学和微形态学证据描述和说明了 L. rubriflora,一种显着的红花新物种。最后,介绍了在 Lapaea 中识别的物种的分类学修订,提供了识别密钥、照片、描述、分布图以及关于它们的形态、地理分布、栖息地、生态和保护状况的注释。Lapaea 仅限于 Espinhaço 山脉,包括五种受威胁物种,每种物种的分布范围很窄,系统发育关系与生物地理省份一致。提供关于它们的形态、地理分布、栖息地、生态和保护状况的识别码、照片、描述、分布图和注释。Lapaea 仅限于 Espinhaço 山脉,包括五种受威胁物种,每种物种的分布范围很窄,系统发育关系与生物地理省份一致。提供关于它们的形态、地理分布、栖息地、生态和保护状况的识别码、照片、描述、分布图和注释。Lapaea 仅限于 Espinhaço 山脉,包括五种受威胁物种,每种物种的分布范围很窄,系统发育关系与生物地理省份一致。
更新日期:2020-06-24
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