Cypella (Iridaceae): What do we know about the diversity of the genus?

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DOI:

https://doi.org/10.5902/2358198053318

Keywords:

Iridaceae, genus, diversity, grasslands, South America, Tigridieae.

Abstract

Cypella (Iridaceae): What do we know about the diversity of the genus? Cypella is a genus centered on the grasslands in Southeast South America, which can be recognized by its flowers with inner tepals having a dense area of glandular trichomes located in a central depression, style branches well developed, compressed, divided above in three crests, two of them acute and positioned in the adaxial part, and the other crest is abaxial and displays a transverse stigmatic surface. A key to distinguish Cypella and related genera is supplied. In this study are recognized 31 species and five subspecies of Cypella: C. Alonsoana, C. amambaica, C. aquatilis, C. armosa, C. aurinegra, C. catharinensis, C. charruana, C. crenata, C. curuzupensis, C. discolor, C. exilis, C. fucata, C. gloriana, C. guttata, C. Hauthalii, C. Herbertii (subspecies Herbertii, brevicristata, reflexa and Wolffhuegelii), C. laeta, C. lapidosa, C. laxa, C. luteogibbosa, C. magnicristata, C. opalina (subspecies opalina and minuticristata), C. Osteniana, C. Pabstiana, C. parviflora, C. pusilla, C. Ravenniana, C. rivularis, C. suffusa, C. trimontina, and C. uliginosa. Comments about geographic distribution, taxonomic affinities, and morphology of all taxa are presented, and a key to distinguish the species of Cypella was organized. Several taxonomic novelties are treated, C. opalina is a new status and combination proposed, C. opalina subsp. minuticristata is a new combination recommended, lectotypes are designated for C. curuzupensis, C. lapidosa and C. opalina. New lectotypes are selected for C. Herbertii and C. laeta, explaining the reason for the rejection of the previously chosen lectotypes for these two species. Furthermore, C. boliviana, C. brasiliensis, C. geniculata, C. oreophila and C. unguiculata are excluded of the genus, and the generic placement of them is commented, while C. craterantha, C. elegans and C. Herbertii subsp. reflexa f. palmeti are considered doubtful taxa.

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Author Biography

Leonardo Paz Deble, Universidade Federal do Pampa, Campus Dom Pedrito

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.

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Published

2020-08-28

How to Cite

Deble, L. P., & Alves, F. da S. (2020). Cypella (Iridaceae): What do we know about the diversity of the genus?. Balduinia, (66), 2–27. https://doi.org/10.5902/2358198053318

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