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, 15 (1), e0226337
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Genlisea Hawkingii (Lentibulariaceae), a New Species From Serra Da Canastra, Minas Gerais, Brazil

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Genlisea Hawkingii (Lentibulariaceae), a New Species From Serra Da Canastra, Minas Gerais, Brazil

Saura Rodrigues Silva et al. PLoS One.

Abstract

Genlisea hawkingii, which is a new species of Genlisea subgen. Tayloria (Lentibulariaceae) from cerrado in southwest Brazil, is described and illustrated. This species has been found in only one locality thus far, in the Serra da Canastra, which is located in the Delfinópolis municipality in Minas Gerais, Brazil. The new species is morphologically similar to Genlisea violacea and G. flexuosa, but differs from them in having a corolla with a conical and curved spur along with sepals with an acute apex and reproductive organs that only have glandular hairs. Moreover, it is similar to G. uncinata's curved spur. G. hawkingii is nested within the subgen. Tayloria clade as a sister group to all the other species of this subgenus. Therefore, both morphological and phylogenetic results strongly support G. hawkingii as a new species in the subgen. Tayloria.

Conflict of interest statement

The authors have declared that no competing interests exist.

Figures

Fig 1
Fig 1. Genlisea hawkingii.
A. Habit. B. Rhizophyll. C. Glabrous leaf. D. Glandular capitate hairs. E. Open corolla, lateral view. F. Corolla, front view. G. Calyx. H. Capsule.
Fig 2
Fig 2. Genlisea hawkingii.
A. Habitat. B. Habit of the plant in Delfinópolis, Minas Gerais (Brazil). C. Corolla, front view. D. Corolla, lateral view. E. Dry infructescence. The pedicel twist upward. F. Immature fruit. G. Mature fruit. Pedicels bent upward. H. A rosette with two scapes. I. A rosette with photosynthetic leaves (above) and rhizophylls (below).
Fig 3
Fig 3. SEM images of Genlisea hawkingii.
A. Flower, corolla and stamens removed, showing the gynoecium and sepals. B. Distal part of a pedicel. C. Cut spur. Note images A-C showing only glandular capitate hairs. D-E. Pollen grains (D–polar view, E–equatorial view). F-G. Seeds (F–Lateral view, G–Front view).
Fig 4
Fig 4. Distribution of Genlisea hawkingii in Serra da Canastra, Delfinópolis municipality in Minas Gerais, Brazil (Modified from https://www.simplemappr.net).
Fig 5
Fig 5. Phylogeny of the Genlisea species based on the Bayesian inference (BI) and maximum likelihood (ML) analyses of the combined dataset (rps16 + matK).
The numbers above and below the branches refer to the BI posterior probability and to the ML bootstrap support, respectively. The numbers beside the species names are references to the different specimens/populations and follow the numbers in Table 1.

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References

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Grant support

Funded by 1. Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP, #2018/02285-6). 2. Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Capes, Finance Code 001). 3. Unesp/PROPe, Univ Estadual Paulista, Brazil. 4. International Association for Plant Taxonomy (IAPT) for the funding for the field expedition. 5. Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) for the fellowship of VFOM (Bolsa de Produtividade - Proc. # 312908/2018-0).
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