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This species is accepted, and its native range is Brazil (Minas Gerais).

[KBu]

Harley, R.M. 2014. Cantinoa nanuzae, a new species of Lamiaceae from the Serra do Espinhaço, Minas Gerais, Brazil. Kew Bulletin 69: 9530. DOI https://doi.org/10.1007/s12225-014-9530-0

Conservation
Critically endangered, in view of the only two localities where it has been recorded.
Distribution
The species is only known from the northern half of Minas Gerais state, in two localities in the Cadeia de Espinhaço range.
Ecology
It is to be expected that future fieldwork in the area will turn up further records of this species. Of particular interest is that this species also displays a calyx with unequal lobes, the posterior lobe shorter and narrowly deltate, similar to other members of the genus.
Morphology General Habit
Much branched herb to 1.5 m high, stems 3 – 4 mm diam., quadrangular, the faces longitudinally sulcate, rather densely pilose with very short spreading hairs, appearing glabrous to the naked eye
Morphology Leaves
Leaves opposite, 4.1 – 7.5 × 2.7 – 5.5 cm, shorter than internodes, broadly ovate-rhomboid with a shortly acute to rarely rounded, obtuse apex and long-cuneate to obtuse base, tapering imperceptibly into petiole, with upper surface of lamina dark green, glabrous, with numerous sunken, sessile glands, lower surface slightly glaucous, glabrous, with numerous sunken, sessile glands, the larger nerves, slightly prominent, pilose, with very small, spreading hairs, margin coarsely and irregularly toothed, more or less entire towards base, petiole 5 – 27 mm long, rather densely short-pilose
Morphology Reproductive morphology Flowers
Flowers subsessile, calyx pale green, at anthesis with tube c- 1.5 mm long, shortly infundibuliform, lobes 5, unequal, the three posterior lobes broader based, with the median posterior lobe narrowly deltate, 1.5 mm long, anterior lobes narrower, more subulate, 2 mm long, fruiting calyx with tube 3 – 4 mm long, slightly inflated, thin-walled below and 2.0 – 2.5 mm wide at widest point, constricted below throat, externally with scattered, weak, whitish hairs throughout and with stipitate glands, internally subglabrous, median posterior lobe shorter and broader, c- 2 mm long, anterior lobes more slender, 2.5 – 3 mm long
Morphology Reproductive morphology Flowers Corolla
Corolla pale lilac, c- 5.5 mm long, with whitish tube 4 – 4.5 mm long, posterior lip with darker markings
Morphology Reproductive morphology Fruits
Nutlets c- 1.8 × 1 mm, ovoid-oblong, glabrous, dark brown to blackish, smooth, not mucilaginous when wet (Fig. 1).
Morphology Reproductive morphology Inflorescences
Cymules dense, up to c- 20-flowered, surrounded by a series of inconspicuous, slightly curved bracteoles, 4 × 0.4 mm Inflorescence a slender, interrupted, terminal or axillary, spiciformthyrse 15 – 30 × 1.1 – 1.6 cm, axis pilose, with small spreading hairs and shortly stipitate glands, of shortly pedunculate to subsessilecymules, lower verticils 3 – 5 (– 8) cm apart, cymules with peduncles up to c- 2 – 7 mm long, with spreading hairs and short stipitate glands, often with the lowest cymules in the axils of small leaf-like, pale green bracts, the upper in axils of inconspicuous, linear-lanceolate bracts c- 3 – 4 × 0.8 mm, glabrous except for ciliate margins
Note

The species is named after DrNanuza Menezes, of the Departamento de Botânica, University of São Paulo, eminent plant anatomist, with a love of the campo rupestre, for the preservation of which she has campaigned for many years. That the Serra do Cipó National Park became a reality, is largely due to her effectiveness in transmitting her enthusiasm for its campo rupestre flora to so many others. Nanuza was also very supportive of the programme of collaborative fieldwork between the Instituto de Biociências, University of São Paulo, and the Royal Botanic Gardens, Kew, in the Cadeia do Espinhaço of Minas Gerais and Bahia, during the 1980s.

The new species is perhaps closest to Cantinoa heterodon (Epling) Harley & J. F. B. Pastore, sharing its herbaceous, erect habit and ± ovate-rhomboid, petioled leaves, but differing in the non-viscous, shortly pilose stems and subglabrous leaves, which in C. heterodon are viscous and sparsely to densely villous with glandular hairs. The flowers of C. nanuzae are in <20-flowered cymes, on peduncles c. 2 – 3 (– 7) mm long, (in C. heterodon 3 – 5-flowered, on peduncles 3 – 5 mm long). The fruiting calyx of C. nanuzae is slightly unequally lobed, the median posterior lobe narrowly deltate, c. 2 mm long and the anterior lobes subulate, 2.5 – 3 mm long, (in C. heterodon the posterior lobe narrowly deltate, 0.75 mm long and the anterior pair more or less subulate, 1.0 – 1.5 mm long).

From C. racemulosa, the new species can be distinguished by the more coarsely toothed leaf margins, much less hairy stems and almost glabrous leaf undersurfaces, which in C. racemulosa are distinctly hairy with spreading trichomes and stipitate glands, also by the longer calyx lobes in the fruiting calyx: posterior lobes c. 2 mm long, anterior lobes 2.5 – 3 mm long (respectively c. 1.2 and 1.6 mm long in C. racemulosa). C. heterodon and C. racemulosa are both species belonging to a group formerly placed in Hyptis sect. Mesosphaeria subsect. Pectinaria (Benth.) Epling, which were recently moved to the genus Cantinoa (Harley & Pastore2012). C. heterodon is a species recorded further south in Brazil, from the states of São Paulo, Paraná and Santa Catarina. C. racemulosa is restricted to the southern half of Minas Gerais state, outside the range of C. nanuzae, but may well also occur in São Paulo and Espírito Santo states, as records occur on their boundaries.

Type
Type: Brazil, Minas Gerais: Botumirim: 12 km de Botumirim, naestrada para Itacambira, 16°48'47""S; 43°02'46""W, 077 m alt., Cerrado, on pale orange, very stony soils, under shade of trees, R. M. Harley 55126, with A. M. Giulietti & M. J. G. Andrade, 3 April 2004 (holotype HUEFS, isotypes K, NY).

Native to:

Brazil Southeast

Cantinoa nanuzae Harley appears in other Kew resources:

Date Reference Identified As Barcode Type Status
May 1, 2014 Harley, R.M. et al. [55126], Brazil K000938373

First published in Kew Bull. 69(3)-9530: 2 (2014)

Accepted by

  • Govaerts, R., Nic Lughadha, E., Black, N., Turner, R. & Paton, A. (2021). The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. https://doi.org/10.1038/s41597-021-00997-6 Scientific Data 8: 215.

Literature

Kew Bulletin

  • Epling, C. (1936). Synopsis of the South American Labiatae. Repert. Spec. Nov. Regni Veg. Beih. 85 (3): 193 – 288.
  • Epling, C. (1949). Revisión del géneroHyptis (Labiatae). Revista Mus. La Plata, Secc. Bot. 7: 153 – 497.
  • Harley, R. M. & Pastore, J. F. B. (2012). A generic revision and new combinations in the Hyptidinae (Lamiaceae), based on molecular and morphological evidence. Phytotaxa 58: 1 – 55.
  • Pastore, J. F. B., Harley, R. M., Forrest, F., Paton, A. J. & van den Berg, C. (2011). Phylogeny of the subtribe Hyptidinae (Lamiaceae tribe Ocimeae) as inferred from nuclear and plastid DNA. Taxon 60, 5: 1317 – 1329.

Herbarium Catalogue Specimens

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Bulletin
Kew Bulletin
http://creativecommons.org/licenses/by-nc-sa/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0