1. Family: Asteraceae Bercht. & J.Presl
    1. Genus: Trixis Sw.
      1. Trixis forzzae Borges & Saavedra

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

    [KBu]

    Borges, R.A.X. & Saavedra, M.M. Kew Bull (2010) 65: 65. https://doi.org/10.1007/s12225-010-9172-9

    Type
    Typus: Brazil, Estado de Minas Gerais, 27 May 2005, Saavedra, Forzza, Andrade & Pereira 239 (holotypusRB!;isotypus K!).
    Habit
    Erect subshrub 0.5 – 1 m
    Stem
    Stem woody, sparsely leafy, densely woolly, with simple, eglandular, rusty hairs
    Leaves
    Leaves spirally arranged, sessile, (2.5 –) 3.5 – 9 (– 12) × (0.8 –) 1 – 2.5 (– 3.5) cm, chartaceous, oblanceolate to lanceolate, base attenuate, apex acute, margins minutely dentate, venation reticulodromus, abaxially woolly with prominent midrib, adaxially hirsute
    Inflorescences
    Inflorescence terminal, with corymb-like branches, bracteolate, bracteoles 0.6 – 1.6 (– 2) × 0.3 – 0.7 (– 0.9) cm, oblong to lanceolate, base obtuse, apex acute, margin entire, both surfaces hirsute, hairs densely grouped on midrib and margins
    Capitulum
    Capitula pedicellate, pedicels (0.7 –) 1.5 – 6 cm long, woolly; involucre hemispherical, biseriate, external phyllaries c. 8, leafy, 7 – 8 × 2 – 3 mm, oblong, hirsute, internal phyllaries c. 23, rigid, c. 10 × 2 mm, lanceolate; receptacle epaleaceous, dense pubescent
    Fruits
    Cypselas c. 6 mm long, cylindrical, base truncate, with 8 longitudinal ribs, hirsute, glandular; pappus 1-seriate, 8 – 9 mm long, barbellate, pale yellow, persistent.
    Distribution
    Only recorded from Serra do Ibitipoca in southern Minas Gerais state, Brazil.
    Ecology
    Campos rupestres, among rocks and herbaceous vegetation with sparse shrubs and small trees.
    Conservation
    Data on distribution and abundance of Trixis forzzae are restricted to the type locality. Consequently, the endemicity of this species is recognised such as that observed before in the Park for species of Bromeliaceae, Velloziaceae, Poaceae, Melastomataceae and Gesneriaceae. Thus it seems prudent to treat it as Vulnerable (VU) D1 + D2, following the IUCN (2001) categories and criteria.
    Note
    This species is named for Rafaela CampostriniForzza, curator of RB, Coordinator of the Flora do Parque Estadual do Ibitipoca and our personal friend. Trixis forzzae is closely related to T. glaziovii Baker, but clearly differs by the presence of dense woolly indument; wingless stems; leaves not rosulate, chartaceous, with the base attenuated; corymb-like inflorescence. Furthermore, both species occur in distinct habitats: Trixis forzzae is only known from the camposrupestres (Giulietti & Pirani 1988) of Serra do Ibitipoca, and T. glaziovii from the campos de altitude (Safford 1999) of southern and south-eastern Brazil. Among the Brazilian species, Trixis glaziovii and T. lessingii DC. are considered herbaceous, with rosulate leaves and a fistulose stem (Katinas1996). However, T. forzzae is a subshrub, characterised by the lack of rosulate leaves and by the woody and branched stem. Among the shrubby species, only T. forzzae and T. verbascifolia (Gardner) S. F. Blake have folicaceous external phyllaries. Nevertheless, the latter can be distinguished by its radiate capitula and 3 – 4-seriate phyllaries.

    Distribution

    Native to:

    Brazil Southeast

    Trixis forzzae Borges & Saavedra appears in other Kew resources:

    First published in Kew Bull. 65(1): 65 (2010)

    Accepted by

    • Roskov Y. & al. (eds.) (2018). Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands.

    Literature

    Kew Bulletin
    • Martinelli, G. (2007). Mountain biodiversity in Brazil. RevistaBrasil. Bot. 30: 587 – 597.Google Scholar
    • Menini-Neto, L., Alves, R. J. V. & Forzza, R. C. (2007). A subtriboPleurothallidinae (Orchidaceae) no Parque Estadual de Ibitipoca, Minas Gerais, Brasil. Bol. Bot. Univ. São Paulo 25: 253 – 278.Google Scholar
    • Hind, D. J. N. [2006] (2007). Tribe Mutisieae. In: J. W. Kadereit & C. Jeffrey (vol. eds), The Families and Genera of Vascular Plants (K. Kubitzki, series ed.), Vol. VIII. Flowering Plants, Eudicots, Asterales, pp. 90 – 122. Springer, Berlin, Heidelberg, New York.Google Scholar
    • Giulietti, A. M., Harley, R. M., Queiroz, L. P., Wanderley, M. G. L. & Van Den Berg, C. (2005). Biodiversity and conservation of plants in Brazil. Conserv. Biol. 19: 632 – 639.Google Scholar
    • IUCN (2001). IUCN Red List Categories and Criteria: Version 3.1. IUCN Species Survival Commission. IUCN, Gland, Switzerland and Cambridge, UK.Google Scholar
    • Hind, D. J. N. (2000). A new species and a commentary on the genus Trixis (Compositae: Mutisieae) in Bahia, Brazil. Kew Bull. 55: 381– 386.Google Scholar
    • Safford, H. F. (1999). Brazilian Páramos I. An introduction to the physical environment and vegetation of the campos de altitude. J. Biogeogr. 26: 693 – 712.Google Scholar
    • Katinas, L. (1996). Revisión de las especiessudamericanas del géneroTrixis (Asteraceae, Mutisieae). Darwiniana 34: 27 – 108.Google Scholar
    • Harley, R. M. (1995). Introdução. In: B. L. Stannard (ed.), Flora of the Pico das Almas, Chapada Diamantina, Brazil, pp. 1 – 42. Royal Botanic Gardens, Kew.Google Scholar
    • Giulietti, A. M. & Pirani, J. R. (1988). Patterns of geographic distribution of some plant species from the Espinhaço Range, Minas Gerais, Brazil. In: P. E. Vanzolini & W. R. Heyer. (eds), Proceedings of a Workshop on Neotropical Biodiversity Distribution Patterns, pp. 39 – 69. Academia Brasileira de Ciências, Rio de Janeiro.Google Scholar

    Sources

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. 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 2020. 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