Microlicia crenatifolia (Melastomatacae), a new species from the westernmost limits of the Diamantina Plateau, Minas Gerais, Brazil

Authors

  • Ricardo Pacifico California Academy of Sciences

DOI:

https://doi.org/10.17348/jbrit.v17.i2.1323

Abstract

Microlicia crenatifolia is described from the Diamantina Plateau, a well-known hotspot of plant endemism in southeastern Brazil. It can be recognized by its small leaves (up to 8.3 mm long) that are conspicuously crenulate to slightly serrate, short floral pedicels (0.7–1.0 mm long), and linear calyx lobes that are externally glandular-punctate and covered with short gland-tipped trichomes 0.1–0.3 mm long. We provide line drawings, SEM photos of leaves, seeds and indumentum, a distribution map, and an identification key to M. crenatifolia and putative relatives (M. canastrensis, M. pabstii, M. serratifolia, and M. thomazii).

References

ALVES, R., N.G. SILVA, J.A. OLIVEIRA, & D. MEDEIROS. 2014. Circumscribing campo rupestre–megadiverse Brazilian rocky montane savannas. Braz. J. Biol. 74:355–362.

ALMEDA, F. & K. FIDANZA. 2020. A new Microlicia (Melastomataceae: Microlicieae) from the Southern Cadeia do Espinhaço, Minas Gerais, Brazil. Phytotaxa 438:182–188.

BRADE, A.C. 1962. Algumas espécies novas do gênero Microlicia (Melastomataceae) da flora do Brasil. Arq. Bot. Estado São Paulo 3:249–261.

BUENO, V.R. & G. HEIDEN. 2022. Calea sessilifolia (Asteraceae, Neurolaeneae), a new species from the Diamantina plateau, Minas Gerais, Brazil. Syst. Bot. 47:586–592.

CARMO, A., R. PACIFICO, R. GONÇALES-SILVA, P.G. SBAIS, K. FIDANZA, & L.A. DE SOUZA. 2019. Epidermal micromorphology and venation patterns of Microlicieae (Melastomataceae) leaves: Looking for new characters for the taxonomy of this Neotropical tribe. Flora 261:151494.

COLLI?SILVA, M., T.N., VASCONCELOS, & J.R. PIRANI. 2019. Outstanding plant endemism levels strongly support the recognition of campo rupestre provinces in mountaintops of eastern South America. J. Biogeogr. 46:1723–1733.

ECHTERNACHT, L., M. TROVÓ, C.T. OLIVEIRA, & J.R. PIRANI. 2011. Areas of endemism in the Espinhaço range in Minas Gerais, Brazil. Flora 206:782–791.

FIDANZA, K., A.B. MARTINS, & F. ALMEDA. 2013. Four new species of Trembleya (Melastomataceae: Microlicieae) from Serra do Cabral, Minas Gerais, Brazil. Brittonia 65:280–291.

GIULIETTI, A.M. & J.R. PIRANI. 1997. Espinhaço Range Region, Eastern Brazil. In: S.D. Davis, V.H. Heywood, O. Herrera-MacBryde, J. Villa-Lobos, & A. C. Hamilton, eds. Centres of plant diversity: a guide and strategy for their conservation. Vol. 3. (The Americas). IUCN Publications Unit, Cambridge, United Kingdom. Pp. 397–404.

GUIMARÃES, P.J.F., D.N. DA SILVA, I.M. ARAÚJO, & R. ROMERO. 2022. A new species of Pleroma (Melastomataceae) from the Southern Espinhaço, Minas Gerais, Brazil. Webbia 77:247–256.

IUCN. 2022. Guidelines for using the IUCN Red List categories and criteria. Version 15.1. (https://www.iucnredlist.org/resources/redlistguidelines) accessed Sept 2023.

LOEUILLE, B. 2021. Three new species of Piptolepis (Vernonieae, Asteraceae) from the Diamantina Plateau, Minas Gerais, Brazil. Syst. Bot. 46:493–503.

MAGALHÃES JUNIOR, A.P., L.F. DE PAULA BARROS, & M.F. FELIPPE. 2015. Southern Serra do Espinhaço: the impressive plateau of quartzite ridges. In: B.C. Vieira, A.A.R. Salgado, & L.J.C. Santos, eds. Landscapes and Landforms of Brazil. Springer Dordrecht. Pp. 359–370.

MARTINS, A.B. & F. ALMEDA. 2017. A monograph of the Brazilian endemic genus Lavoisiera (Melastomataceae: Microlicieae). Phytotaxa 315:1–194.

MEYER, F.S., R. PACIFICO, & F. ALMEDA. 2022. A new species of Pleroma (Melastomataceae: Melastomateae) endemic to Southern Cadeia do Espinhaço, Minas Gerais, Brazil. Phytotaxa 560:30–42.

PACIFICO, R., F. ALMEDA, A. FROTA, & K. FIDANZA. 2020a. Areas of endemism on Brazilian mountaintops revealed by taxonomically verified records of Microlicieae (Melastomataceae). Phytotaxa 450:119–148.

PACIFICO, R., F. ALMEDA, & K. FIDANZA. 2020b. Seven new species of Microlicia (Melastomataceae: Microlicieae) from Minas Gerais, Brazil. Syst. Bot. 45:277–293.

PACIFICO, R., F. ALMEDA, & K. FIDANZA. 2021. Two new species and new synonyms in Microlicieae (Melastomataceae) from Minas Gerais, Brazil. Brittonia 73:106–115.

PACIFICO, R. & F. ALMEDA. 2022. Lavoisiereae: A Neotropical tribe with remarkable endemism on eastern Brazilian mountaintops. In: R. Goldenberg, F.A. Michelangeli, & F. Almeda, eds. Systematics, Evolution, and Ecology of Melastomataceae. Springer, Cham. Pp. 385–408.

PACIFICO, R., F. ALMEDA, D.S. PENNEYS, & K. FIDANZA. 2022. Systematics of the Trembleya sensu stricto clade of Microlicia (Melastomataceae, Lavoisiereae). PhytoKeys 216:1–101.

PACIFICO, R. & K. FIDANZA. 2015. Three new endangered species of Trembleya DC. (Melastomataceae: Microlicieae) from Minas Gerais, Brazil. Phytotaxa 238:163–173.

PACIFICO, R. & K. FIDANZA. 2017. Microlicia sciophylla (Melastomataceae: Microlicieae), a new micro-endemic species from the rocky fields of Minas Gerais, Brazil. Kew Bull. 72:1–8.

QGIS Development Team (2023) QGIS Geographic Information System. Open Source Geospatial Foundation Project. http://qgis.org Accessed July 2023.

RAPINI, A., P.L. RIBEIRO, S. LAMBERT, & J.R. PIRANI. 2008. A flora dos campos rupestres da Cadeia do Espinhaço. Megadiversidade 4:16–24.

ROMERO, R. 2000. A família Melastomataceae no Parque Nacional da Serra da Canastra, Minas Gerais, Brasil. Ph.D. Thesis. Universidade Estadual de Campinas. Campinas, Brazil.

ROMERO, R. 2013. A new species of Microlicia (Melastomataceae) from the Espinhaço Range, Minas Gerais, Brazil. Phytotaxa 88:1–5.

ROMERO, R., K.R. SILVA, & D.G. SIMÃO. 2016. Microlicia cogniauxiana and Microlicia naudiniana (Melastomataceae), two new species from the Espinhaço Range, Brazil. Syst. Bot. 40:1012–1021.

ROMERO, R. & N.M. CASTRO. 2014. Microlicia longicalycina (Melastomataceae), a new species from the state of Minas Gerais, Brazil, with notes on leaf anatomy. Syst. Bot. 39:1177–1182.

ROMERO, R. & A.F.A. VERSIANE. 2021. Taxonomic and nomenclatural novelties in Microlicia (Melastomataceae) with an updated checklist to the genus in the Serra do Cipó, Minas Gerais, Brazil. Syst. Bot. 46:812–827.

SCHNEIDER, C.A., W.S. RASBAND, & K.W. ELICEIRI. 2012. NIH Image to ImageJ: 25 years of image analysis. Nat. Methods 9:671–675.

SILVEIRA, F.A.O., D. NEGREIROS, N.P.U. BARBOSA, E. BUISSON, F.F. CARMO, D.W. CARSTENSEN, A.A. CONCEIÇÃO, T.G. CORNELISSEN, L. ECHTERNACHT, G.W. FERNANDES, Q.S. GARCIA, T.J. GUERRA, C.M. JACOBI, J.P. LEMOS-FILHO, S. LE STRADIC, L.P.C. MORELLATO, F.S. NEVES, R.S. OLIVEIRA, C.E. SCHAEFER, P.L. VI-ANA, & H. LAMBERS. 2016. Ecology and evolution of plant diversity in the endangered campo rupestre: A neglected conservation priority. Pl. & Soil 403:129–152.

THIERS, B. 2023. [continuously updated]. Index herbariorum: A global directory of public herbaria and associated staff. New York Botanical Garden’s virtual herbarium. https://sweetgum.nybg.org/science/ih/ Accessed July 2023.

ULLOA ULLOA, C., F. ALMEDA, R. GOLDENBERG, G. KADEREIT, F.A. MICHELANGELI, D.S. PENNEYS, R.D. STONE, & M.C. VERANSO-LIBALAH. 2022. Melasto-mataceae: Global diversity, distribution, and endemism. In: R. Goldenberg, F.A. Michelangeli, & F. Almeda, eds. Systematics, Evolution, and Ecology of Melastomataceae. Springer, Cham. Pp. 3–28.

VERSIANE, A.F.A., R. ROMERO, M. REGINATO, C.A.D. WELKER, F.A. MICHELANGELI, & R. GOLDENBERG. 2021. Phylogenetic analysis of Microlicieae (Me-lastomataceae), with emphasis on the re-circumscription of the large genus Microlicia. Bot. J. Linn. Soc. 197:35–60.

VERSIANE, A.F.A. & R. ROMERO. 2022. Microlicia schwackeana (Melastomataceae), a new species from campo rupestre in Minas Gerais, Brazil. Phytotaxa 539:186–194.

Downloads

Published

2023-11-15

How to Cite

Pacifico, R. (2023). Microlicia crenatifolia (Melastomatacae), a new species from the westernmost limits of the Diamantina Plateau, Minas Gerais, Brazil. Journal of the Botanical Research Institute of Texas, 17(2), 439–447. https://doi.org/10.17348/jbrit.v17.i2.1323