Paepalanthus mollis var. mollis is placed in Paepalanthus subg. Xeractis (Eriocaulaceae) and, until now, it was considered endemic to the campos rupestres of the Espinhaço Range in Minas Gerais, Brazil. We report here the new occurrences of this species from the municipalities of Carrancas and Minduri, at the southern part of the mountain complex of Bocaina and Carrancas. These specimens confirm the occurrence of this species and the subgenus outside the Espinhaço Range. These occurrences are also the southernmost sites of geographic distribution of the group

Bárbara Mourão

Marcelo Trovó

Mariana Mansanares

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Mourão,Bárbara

Trovó,Marcelo

Mansanares,Mariana

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New occurrences of Paepalanthus mollis Kunth var. mollis: extending the distribution of Paepalanthus subg. Xeractis Körn. (Eriocaulaceae) outside the Espinhaço Range, Minas Gerais, Brazil

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Check List the journal of biodiversity data1New occurrences of Paepalanthus mollis Kunth var. mollis: extending the distribution of Paepalanthus subg. Xeractis Körn. (Eriocaulaceae) outside the Espinhaço Range, Minas Gerais, BrazilBárbara Mourão1, 3, Marcelo Trovó2 & Mariana E. Mansanares11 Universidade Federal de Lavras, Departamento de Biologia, Setor de Botânica Sistemática, Laboratório de Sistemática de Espermatófitas, Campus Universitário, CEP 37200-000, Lavras, MG, Brazil2 Universidade Federal do Rio de Janeiro, Instituto de Biologia, Departamento de Botânica, Laboratório Integrado de Sistemática Vegetal, Cidade Universitária, CEP 21941-590, Rio de Janeiro, RJ, Brazil3 Corresponding author. E-mail: bmoubio@gmail.comAbstract. Paepalanthus mollis var. mollis is placed in Pae-palanthus subg. Xeractis (Eriocaulaceae) and, until now, it was considered endemic to the campos rupestres of the Espinhaço Range in Minas Gerais, Brazil. We report here the new occurrences of this species from the municipali-ties of Carrancas and Minduri, at the southern part of the mountain complex of Bocaina and Carrancas. These specimens confirm the occurrence of this species and the subgenus outside the Espinhaço Range. These occurrences are also the southernmost sites of geographic distribution of the group.Key words. Carrancas; campos rupestres; geographic distribution; Paepalanthoideae; quartzose soils.Paepalanthus Mart. is the largest genus of Eriocaulaceae in South America, being mostly distributed in the Ameri-cas with a few species occurring in Africa (Giulietti & Hensold 1990). In Brazil, there are 345 species and 70 varieties, and 270 species and 49 varieties are reported to Minas Gerais state (Flora do Brasil 2017). Paepalan-thus is, thus, one of the three largest genera of Brazilian angiosperms (BFG 2015). This relevant taxonomic and morphological diversity is divided into many infrageneric categories (Giulietti & Hensold 1990).Paepalanthus subg. Xeractis Körn. is monophyletic (Echternacht et al. 2011; Trovó et al. 2013) and is eas-ily recognized by the staminate hairy corolla within and by the involucral bracts usually surpassing the capitula (Hensold 1988). The group comprises 28 species, many of them narrow endemics sometimes restricted to one or  few adjacent mountains (Hensold 1988; Andrino & Costa 2013).Until now, the group has been considered endemic to the Espinhaço Range in Minas Gerais, with the species occurring mainly in the quartzose soils of campos rupestres (Hensold 1988; Echternacht et al. 2011; Andrino & Costa 2013).When revising Paepalanthus subg. Xeractis, Hensold (1988) emphasized the uncommon disjunction in the distribution of Paepalanthus mollis Kunth. Populations of this species are found in the high slopes of Pico do Itambé (MG), corresponding to Paepalanthus mollis var. itambeen-sis Hensold, and in the campos rupestres from OuroPreto to Serra do Caraça, corresponding to Paepalanthus mollis Kunth var. mollis. Hensold (1988) also cited a question-able occurrence of P. mollis var. mollis to São João del Rei in the Serra do Lenheiro, based on the specimen Silveira 263 (R). However, this occurrence has not yet been confirmed and the subgenus and species distributions were consid-ered restricted to the Espinhaço Range (Hensold 1988; Echternacht et al. 2011).During the field efforts to survey the flora of the Serra de Carrancas and the Serra da Bocaina between the years 2010 and 2016, many specimens belonging to Paepalan-thus subg. Xeractis were collected. These specimens were sampled and fixed using traditional methods in plant systematics. Mounted specimens are housed at the ESAL herbarium of the Universidade Federal de Lavras.The specimens were identified using the latest and most comprehensive revision of the group provided by Hen-sold (1988). The clump-forming habit, the small stature, the tiny capitula, and other delicate reproductive features, along with the unique habitat and distribution allowed us to clearly identify the specimens as Paepalanthus mollis var. mollis (Figure 1).The newly reported collections of Paepalanthus mollis var. mollis from the municipalities of Carrancas and Min-duri (Figure 2) confirm and extend the distribution of Check List 13(3): 2109, 6 May 2017 https://doi.org/10.15560/13.3.2109ISSN 1809-127X © 2017 Check List and Authors31321096 May 2017Notes oN GeoGraphic DistributioNMourão et al. | Extended distribution of Paepalanthus subg. Xeractis Check List | www.biotaxa.org/cl Volume 13 | Issue 3 | Article 2109 2Paepalanthus subg. Xeractis outside the Espinhaço Range, as previously conjectured by Hensold (1988). These locali-ties are very close to the Serra do Lenheiro, however no specimens from this exact area have been found until now. These recently discovered populations are distributed in the southern part of the mountain complex of Serra da Bocaina and Serra de Carrancas, representing the south-ernmost sites of distribution of the species and the group.In these more recent collection sites, the individuals of P. mollis var. mollis form clumps growing over quartzose soils in usually shaded habitats close to large rocks. Although a significant number of specimens were collected, the spe-Figure 1. Habitat, habit, and details of Paepalanthus mollis var. mollis (A) overview of the summit of the Serra de Carrancas, (B) habitat detail, (C) popula-tion detail, (D) capitulum detail, (E) rosette detail.Mourão et al. | Extended distribution of Paepalanthus subg. Xeractis Check List | www.biotaxa.org/cl Volume 13 | Issue 3 | Article 2109 3BFG (Brazilian Flora Group). 2015. Growing knowledge: an overview of Seed Plant diversity in Brazil. Rodriguésia 66: 1085–1113. https://doi.org/10.1590/2175-7860201566411Echternacht, L., P.T. Sano, M. Trovó & J. Dubuisson. 2011. Phylogenetic analysis of the Brazilian microendemic Paepalanthus subgenus Xeractis (Eriocaulaceae) inferred from morphology. Botanical Journal of the Linnean Society 167: 137–152. https://doi.org/10.1111/j.1095-8339.2011.01170.xFlora do Brasil. [2017]. Paepalanthus in Flora do Brasil 2020. Ac -cessed at http://reflora.jbrj.gov.br/reflora/floradobrasil/FB7558, 7 March 2017Giulietti, A.M. & N. Hensold. 1990. Padrões de distribuição geográ-fica dos gêneros de Eriocaulaceae. Acta Botanica Brasiliana 4(1): 133–158. https://doi.org/10.1590/S0102-33061990000100010Hensold, N. 1988. Morphology and Systematics of Paepalanthus subgenus Xeractis (Eriocaulaceae). Systematic Botany Mono-graphs 23: 1–150. https://doi.org/10.2307/25027709Trovó, M., M.J.G. Andrade, P.T. Sano, P.L. Ribeiro & C. van den Berg. 2013. Molecular phylogenetics and biogeography of Neotropical Paepalanthoideae with emphasis on Brazilian Paepal-anthus (Eriocaulaceae). Botanical Journal of the Linnean Society 171: 225–243. https://doi.org/10.1111/j.1095-8339.2012.01310.xAuthors’ contributions. All authors collected, interpreted the data, and wrote the text.Received: 2 December 2016 Accepted: 24 March 2017Academic Editor: Juliana de Paula-Souzacies is not locally abundant, and seems to be restricted to the mountain summits. It is also relevant that none of these new specimens are protected in conservation units. These populations are, in fact, growing in mountains under intense human interference from tourism, agriculture, and cattle raising.Specimens examined. Brazil. Minas Gerais. Minduri: 21 May 2010, Mansanares, M.E. et al. 1568. (ESAL 23879); 14 December 2010, Mansanares, M.E. et al. 2069 (ESAL 23881); 7 April 2016, Mourão, B. et al. 10 (ESAL 23882); 7 April 2016, Mourão, B. et al. 11 (ESAL 23883); 7 April 2016, Trovó, M.L.O. et al. 675 (RB). Carrancas: 14 December 2010, Mansanares, M.E. et al. 2017 (ESAL 23880).ACKNOWLEDGEMENTSFinancial support was provided by the Alexander von Hum-boldt Foundation, FAPERJ (E-26/111.392/2012, E-26/ 111010.001.392/2014 – BIOTA) and CNPq (proc. 470349/ 2013-1).LITERATURE CITEDAndrino, C.O. & F.N. Costa. 2013. Paepalanthus subgen. Xeractis (Eriocaulaceae) na porção central da Cadeia do Espinhaço em Minas Gerais, Brasil. Rodriguésia 64(1): 75–89. http://www.scielo.br/pdf/rod/v64n1/08.pdfFigure 2. Occurrence map of the new records for Paepalanthus mollis var. mollis.

New occurrences of Paepalanthus mollis Kunth var. mollis: extending the distribution of Paepalanthus subg. Xeractis Körn. (Eriocaulaceae) outside the Espinhaço Range, Minas Gerais, Brazil

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