Rehabilitation of the South American genus Sphenostigma Baker (Iridaceae: Tigridieae)

Autores

DOI:

https://doi.org/10.5902/2358198095180

Palavras-chave:

Gelasine, South America, Sphenostigma, Taxonomy

Resumo

Sphenostigma is rehabilitated from the synonymy of Gelasine Herbert based on distinctive characteristics of the perigonium and mainly by shape of the gynoecium, which has a wide stigmatic area perpendicular to the style branches. Six species and four subspecies are recognized, six of them constitute new combinations: Sphenostigma Sellowianum (Klatt) Baker (type of the genus), S. caeruleum Klatt, S. giganteum (Ravenna) Deble subsp. giganteum, S. giganteum subsp. flexitepalum (Ravenna) Deble, S. paranaense (Ravenna) Deble, S. rigidum (Ravenna) Deble, S. uruguaiense (Ravenna) Deble subsp. uruguaiense, and S. uruguaiense subsp. orientale (Ravenna) Deble. Lectotypes are designated for Sphenostigma Sellowianum, S. giganteum subsp. flexitepalum and S. rigidum. A neotype is proposed for S. uruguaiense subsp. orientale. A list of valid names and synonyms is provided.

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Biografia do Autor

Leonardo Paz Deble, Universidade Federal do Pampa

Possui graduação em Ciências Biológicas (Licenciatura Plena) pela Universidade da Região da Campanha (2002), Mestrado (2004) e Doutorado (2007) em Ciências Florestais pela Universidade Federal de Santa Maria. Atualmente é Professor Adjunto da Universidade Federal do Pampa. É revisor e ilustrador científico da Revista "Balduinia" editada pela Universidade Federal de Santa Maria e também faz parte do "Núcleo Interinstitucional de pesquisas botânicas Balduino Rambo" da Universidade Federal de Santa Maria. Tem publicado inúmeros trabalhos em revistas nacionais e internacionais na área da Botânica com ênfase em Taxonomia Vegetal.

Referências

Aublet, J.B. 1775. Histoire des plantes de la Guiane Françoise : rangées suivant la méthode sexuelle, avec plusieurs mémoires sur différens objects intéressans, relatifs à la culture & au commerce de la Guiane Françoise, & une notice des plantes de l’Isle-de-France ... Vol. 1. Londres: P. F. Didot jeune. 621pp.

https://www.biodiversitylibrary.org/page/362014.

Baker, J.G. 1877. Systema Iridacearum. Journal of Linnean Society, Botany 16: 61-180. http://dx.doi.org/10.1111/j.1095-8339.1877.tb00172.x

Baker, J.G. 1892. Handbook of the Irideae. London: George Bells & Sons, 248 pp. http://dx.doi.org/10.5962/bhl.ti-tle.15431

Beentje, H. 2010. The Kew Plant Glossary: an illustrated dictionary of plant terms. Royal Botanic Gardens, Kew, 160 pp.

Bentham, G. & J. D. Hooker. 1883. Genera plantarum: ad exemplaria imprimis in Herberiis Kewensibus servata definite, 3, pt. 2. 1258pp.

https://www.biodiversitylibrary.org/item/14690.

Brown, N.E. 1909. Decades Kewenses. Decas LIV. Kew Bulletin of miscellaneous information: 357-362.

Chauveau, O., L. Eggers, T.T. Souza-Chies & S. Nadot. 2012. Oil-producing flowers within the Iridoideae (Iridaceae): evolutionary trends in the flowers of the New World genera. Annals of Botany London 110: 713-729. http://dx.doi.org/10.1093/aob/mcs134

Deble, L.P. & F.S. Alves. 2017a. The type of Cypella herbertii subsp. brevicristata Ravenna (Iridaceae: Tigridieae). Balduinia 56: 20-26.

Deble, L.P. & F.S. Alves. 2017b.Taxonomic novelties for the genus Cypella (Iridaceae): new species, synonymies and nomenclatural types. Kew Bulletin, Kew 72 (41): 1-18.

Deble, L.P. & F.S. Alves. 2020. Cypella (Iridaceae) What do we know about the diversity of the genus? Balduinia 66: 2-27.

Deble, L. P. 2021. Taxonomic review of the genus Kelissa Ravenna (Iridaceae). Balduinia 68: 34-44. https://doi.org/10.5902/2358198069390

Deble, L. P. 2024. Pedro Felix [Pierfelice] Ravenna, ¿un gigante incomprendido?. Balduinia 72: 11-28. https://doi.org/10.5902/2358198086630

Deble, L. P. 2025. Misionella (Iridaceae: Tigridieae) a new genus from Campos eco-region of Southeast South American grasslands. Balduinia 74: 2-21.

https://doi.org/10.5902/2358198090678

Deble, L. P., Keller, H.A., Pinheiro-Moreira, B. & Martin, C. 2025. Advances towards a revision of Phalocallis: taxa of the Southeast South American Grasslands. Balduinia 75: 2-31. https://doi.org/10.5902/2358198094820

Foster, R.C. 1945. Studies in Iridaceae III. Contributions from the Gray Herbarium Harvard University 155: 3-55.

Foster, R.C. 1946. Studies in the flora of Bolivia I, Iridaceae, part 1. Contributions from the Gray Herbarium Harvard University 161: 3-19.

Foster, R.C. 1950. Studies in the Iridaceae VI, Miscelaneous novelties and transfers. Contributions from the Gray Herbarium of Harvard University 171: 22-28.

García, N., Raven, P.H. & A.W. Meerow. 2024. Pierfelice Ravenna (1938-2022), life, new names, and confusion. Annals of Missouri Botanic Garden 190: 490-516.

Gil, A. dos, S. B. 2012. Revisão taxonômica e estudos filogenéticos do gênero Neomarica Sprague. Doctoral thesis. Universidade Estadual de Campinas, Campinas.

Gil, A. dos S.B., Hall, C.F., Bittrich, V. & M. do C. Stanislau. 2019. A new species, new synonyms, typifications, and a name correction in Neomarica from Brazil (Trimezieae, Iridaceae). Brittonia 71: 144–155. https://doi.org/10.1007/s12228-018-9563-z

Gil, A. dos S.B., Schneider, L.J.C., Bittrich, V. & M. do C. Stanislau. 2021a. Revisiting the taxonomy of Neomarica humilis (Trimezieae, Iridaceae) and some related names. Phytotaxa 489 (3): 275-284.

Gil, A. dos S.B., Schneider, L.J.C., Bittrich, V. & M. do C. Stanislau. 2021b. Typifications of Some Names in Neomarica (Trimezieae, Iridaceae). Novon: A Journal for Botanical Nomenclature 29(1), 70-73. https://doi.org/10.3417/2021633

Herbert, W. 1840. Gelasine azurea. Azure Gelasine. Curtis’s Botanical Magazine 66: pl. 3779.

Klatt, F.W. 1862. Specimen e familia Iridacearum. Linnaea 31: 533-570.

Klatt, F.W. 1882. Ergantzungen und berichtgungen zu Baker’s Systema Iridacearum. Abhandlungen der Naturforschenden Gesellschaft zu Halle 15: 44-404.

Kraenzlin, F. 1908. Plantae Novae andinae imprimis Weberbauerianae III: Iridaceae Andinae. Botanische Jahrbücher fur Systematik, Pflanzengeschichte und Pflanzengeographie 40 (3): 239-242.

Miller, P. 1754. The Gardeners Dictionary. The Sixth Edition. London: Printed for the author; And Sold by John and James Rivington, at the Bible and Crown in St. Paul’s Church-Yard. 994pp. https://www.biodiversitylibrary.org/bibliography/76017.

Ravenna, P.F. 1977. Notas sobre Iridaceae V. Noticário Mensual Museo Nacional História Natural 21: 7-9.

Ravenna, P.F. 1983. A New species and a new subgenus in Ennealophus (Iridaceae). Wrightia 7(3): 232-234.

Ravenna, P.F. 1984. The delimitation of Gelasine (Iridaceae) and G. uruguaiensis sp. nov. from Uruguay. Nordic Journal of Botany 4: 347-350.

Ravenna, P.F. 1986. Itysa and Lethia, two new genera of neotropical Iridaceae. Nordic Journal of Botany 6 (5): 581-588.

Ravenna, P.F. 1988. A previous valid specific epithet for Gelasine azurea (Iridaceae). Phytologia 65 (2): 154.

Ravenna, P.F. 2005. New species of South American bulbous Iridaceae. Onira Botanical Leaflets 10 (13): 39-45.

Small, J.E. 1931. Bartram’s Ixia coelestina rediscovered. Journal of the New York Botanical Garden 32: 155-161.

Turland, N.J., Wiersema, J.H., Barrie, F.R., Gandhi, K.N., Gravendyck, J., Greuter, W., Hawksworth, D.L., Herendeen, P.S., Klopper, R.R., Knapp, S., Kusber, W.H., Li, D.Z., May, T.W., Monro, A.M., Prado, J., Price, M.J., Smith, G.F. & Zamora J.C (Eds.). 2025. International Code of Nomenclature for algae, fungi, and plants (Madrid Code). Regnum Vegetabile 162. Chicago: University of Chicago Press.

https://doi.org/10.7208/chicago/9780226839479.001.0001

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Publicado

19-01-2026

Como Citar

Deble, L. P. (2026). Rehabilitation of the South American genus Sphenostigma Baker (Iridaceae: Tigridieae). Balduinia, (76), 33–40. https://doi.org/10.5902/2358198095180

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