Combining the small South American genus Androtrichum into Cyperus (Cyperaceae)
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Keywords

anatomy
Cypereae
new name
taxonomy

How to Cite

Pereira-Silva, L., Trevisan, R., Rodrigues, A. and Larridon, I. (2020) “Combining the small South American genus Androtrichum into Cyperus (Cyperaceae)”, Plant Ecology and Evolution, 153(3), pp. 446-454. doi: 10.5091/plecevo.2020.1746.

Abstract

Background and aims – Molecular phylogenetic studies have provided a clearer understanding of the complex relationships within the family Cyperaceae. These studies have consistently shown that 12 allied genera are nested in the genus Cyperus. However, early Sanger sequencing-based phylogenies that included the two species of the small South American genus Androtrichum were inconclusive in placing this genus either as sister to Cyperus or as part of its early divergent lineages. A recent phylogenetic analysis however conclusively placed the two species of Androtrichum within the C3 Cyperus Grade. In this study, we investigate if the morphology and anatomy of Androtrichum species provide additional evidence for their placement in the genus Cyperus. In addition, we provide descriptions and distribution data for the species.
Material and methods – Herbarium material from FLOR, FURB, GENT, ICN, and K has been studied. Samples of the culm and leaf were studied using histological methods. Taxonomic changes and typifications of names were performed according to the International Code of Nomenclature for algae, fungi, and plants.
Key results – The morphology and the non-Kranz anatomy observed in the Androtrichum species confirm their placement among the other C3  Cyperus species. Androtrichum is combined into Cyperus. For one species, a combination in Cyperus is already available: Cyperus trigynus. For the other species, a new name in Cyperus is published: Cyperus byssaceus. Two typifications are established and morphological descriptions and distribution data are provided.
Conclusion – By integrating recent molecular phylogenetic data with additional evidence from morphology and anatomy, Androtrichum is combined into Cyperus. As a result of this taxonomic change, a single monophyletic genus Cyperus is now recognised in the Cyperus Clade of tribe Cypereae.

https://doi.org/10.5091/plecevo.2020.1746
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References

Bauters K., Larridon I., Reynders M., Asselman P., Vrijdaghs A., Muasya A.M., Simpson D.A., Goetghebeur P. (2014) A new classification for Lipocarpha and Volkiella as infrageneric taxa of Cyperus s.l. (Cypereae, Cyperoideae, Cyperaceae): insights from species tree reconstruction supplemented with morphological and floral developmental data. Phytotaxa 166: 1–32. https://doi.org/10.11646/phytotaxa.166.1.1

Brongniart A.T. (1829–1834) Phanérogamie. In: Dupperey L.M.I. (ed.) Voyage autour du monde. Botanique. Paris, Bertrand. Available at https://www.biodiversitylibrary.org/page/10349365#page/3/mode/1up [accessed 15 Aug. 2020].

Bukatsch F. (1972) Bemerkungen zur doppelfärbung astrablau-safranin. Mikrokosmos 6: 255.

Clarke C.B. (1908) New genera and species of Cyperaceae. Bulletin of Miscellaneous Information Additional Series 8: 1–196.

Denton M.F. (1983) Anatomical studies of the “Luzulae” group of Cyperus (Cyperaceae). Systematic Botany 8(3): 250–262. https://doi.org/10.2307/2418479

Dietrich A.G. (1833) Species Plantarum ed. 6, Tom. I, Pars. I, Sectio II. Berlin. Available at https://www.biodiversitylibrary.org/page/59124007#page/761/mode/1up [accessed 15 Aug. 2020].

Don G. (1830) Loudon’s Hortus Britannicus. London, Longman, Rees, Orme, Brown, and Green. https://doi.org/10.5962/bhl.title.10320

Elliott T.L., Muasya A.M. (2017) Taxonomic realignment in the southern African Tetraria (Cyperaceae, tribe Schoeneae; Schoenus clade). South African Journal of Botany 112: 354–360. https://doi.org/10.1016/j.sajb.2017.06.011

Escudero M., Hipp. A.L. (2013) Shifts in diversification rates and clade ages explain species richness in higher-level sedge taxa (Cyperaceae). American Journal of Botany 100(12): 2403–2411. https://doi.org/10.3732/ajb.1300162

Global Carex Group (2015) Making Carex monophyletic (Cyperaceae, tribe Cariceae): a new broader circumscription. Botanical Journal of the Linnean Society 179(1): 1–42. https://doi.org/10.1111/boj.12298

Goetghebeur P. (1986) Genera Cyperacearum. Een bijdrage tot de kennis van de morfologie, systematiek en fylogenese van de Cyperaceae-genera. PhD thesis. Ghent University, Belgium.

Goetghebeur P. (1998) Cyperaceae. In: Kubitzki K. (ed.) The families and genera of vascular plants vol. 4: 141–190. Berlin, Springer-Verlag.

Govaerts R., Simpson D.A., Goetghebeur P., Wilson K.L., Egorova T., Bruhl J.J. (2007) World checklist of Cyperaceae. Sedges. London, Kew Publishing, Royal Botanic Gardens, Kew.

Govaerts R., Jiménez-Mejías P., Koopman J., Simpson D.A., Goetghebeur P., Wilson K.L., Egorova T., Bruhl J.J. (2020) World checklist of Cyperaceae online. Facilitated by the Royal Botanic Gardens, Kew. Available at http://wcsp.science.kew.org/ [accessed 13 Jan. 2020].

Hefler S.M., Longhi-Wagner H.M. (2010) A contribuição da anatomia foliar para taxonomia das espécies de Cyperus L. subg. Cyperus (Cyperaceae) ocorrentes no Sul do Brasil. Acta Botanica Brasilica 24(3): 708–717. https://doi.org/10.1590/S0102-33062010000300014

Herter W.G. (1953) Flora del Uruguay V. Glumiflorae III. Revista Sudamericana de Botanica 9(5): 129–173.

Johansen D.A. (1940) Plant Microtechnique. Principles and Practice. New York, McGraw-Hill.

Kunth C.S. (1837) Enumeratio Plantarum vol. 2: Cyperaceae Juss., Brown, Nees ab Esenb. Stuttgart & Tübingen, Sumtibus J.G. Cottae. Available at https://www.biodiversitylibrary.org/page/7428066#page/9/mode/1up [accessed 15 Aug. 2020].

Larridon I., Reynders M., Huygh W., Bauters K., Van de Putte K., Muasya A.M., Boeckx P., Simpson D.A., Vrijdaghs A., Goetghebeur P. (2011a) Affinities in C3 Cyperus lineages (Cyperaceae) revealed using molecular phylogenetic data and carbon isotope analysis. Botanical Journal of the Linnean Society 167(1): 19–46. https://doi.org/10.1111/j.1095-8339.2011.01160.x

Larridon I., Reynders M., Huygh W., Bauters K., Vrijdaghs A., Leroux O., Muasya A.M., Simpson D.A., Goetghebeur P. (2011b) Taxonomic changes in C3 Cyperus (Cyperaceae) supported by molecular phylogenetic data, morphology, embryology, ontogeny and anatomy. Plant Ecology and Evolution 144(3): 327–356. https://doi.org/10.5091/plecevo.2011.653

Larridon I., Bauters K., Reynders M., Huygh W., Muasya A.M., Simpson D.A., Goetghebeur P. (2013) Towards a new classification of the giant paraphyletic genus Cyperus (Cyperaceae): phylogenetic relationships and generic delimitation in C4 Cyperus. Botanical Journal of the Linnean Society 172(1): 106–126. https://doi.org/10.1111/boj.12020

Larridon I., Bauters K., Reynders M., Huygh W., Goetghebeur P. (2014) Taxonomic changes in C4 Cyperus (Cypereae, Cyperoideae, Cyperaceae): combining the sedge genera Ascolepis, Kyllinga and Pycreus into Cyperus s.l. Phytotaxa 166(1): 33–48. https://doi.org/10.11646/phytotaxa.166.1.2

Larridon I., Bauters K., Semmouri I., Viljoen J.A., Prychida C.J., Muasya A.M., Bruhl J.J., Wilson K.L., Senterre B., Goetghebeur P. (2018) Molecular phylogenetics of the genus Costularia (Schoeneae, Cyperaceae) reveals multiple distinct evolutionary lineages. Molecular Phylogenetics and Evolution 126: 196–209. https://doi.org/10.1016/j.ympev.2018.04.016

Link J.H. (1827–1833) Hortus regius botanicus berolinensis, descriptus. Berlin, G. Reimer. Available at https://www.biodiversitylibrary.org/page/46937276#page/343/mode/1up [accessed 15 Aug. 2020].

Linnaeus C. (1753) Species Plantarum vol. 1. Stockholm, Laurentius Salvius. Available at http://www.biodiversitylibrary.org/item/13829 [accessed 15 Aug. 2020].

Metcalfe C.R. (1971) Anatomy of the monocotyledons. V. Cyperaceae. Oxford, Clarendon Press.

Muasya A.M., Simpson D.A., Chase M.W. (2002) Phylogenetic relationships in Cyperus L. s.l. (Cyperaceae) inferred from plastid DNA sequence data. Botanical Journal of the Linnean Society 138(2): 145–153. https://doi.org/10.1046/j.1095-8339.2002.138002145.x

Muasya A.M., Simpson D.A., Verboom G.A., Goetghebeur P., Naczi R.F.C., Chase M.W., Smets E. (2009a) Phylogeny of Cyperaceae based on DNA sequence data: current progress and future prospects. The Botanical Review 75: 2–21. https://doi.org/10.1007/s12229-008-9019-3

Muasya A.M., Vrijdaghs A., Simpson D.A., Chase M.W., Goetghebeur P., Smets E. (2009b) What is a genus in Cypereae: phylogeny, character homology assessment and generic circumscription in Cypereae. The Botanical Review 75: 52–66. https://doi.org/10.1007/s12229-008-9018-4

Nees von Esenbeck C.G.D. (1834) Uebersicht der Cyperaceengattungen. Linnaea 9: 273–306. Available at https://www.biodiversitylibrary.org/page/2011#page/1/mode/1up [accessed 15 Aug. 2020].

Nees von Esenbeck C.G.D. (1840) Cyperaceae a Schomburgkio in Guiana Anglica collectae, ex herbario Lindleyano. Journal of Botany 2: 393–397. Available at https://www.biodiversitylibrary.org/item/6309#page/2/mode/1up [accessed 15 Aug. 2020].

Nees von Esenbeck C.G.D. (1842) Florae Brasiliensis Cyperographia. In: von Martius C.F.P. (ed.) Flora Brasiliensis vol. 2(1). Munich & Leipzig, R. Oldenbourg.

Pfeiffer H. (1937) Androtrichum trigynum (Spreng.) H.Pfeiff. Ein oft verkanntes, halophiles Sauergras Südamerikas. Repertorium Novarum Specierum Regni Vegetabilis 42(1–10): 10–14. https://doi.org/10.1002/fedr.19370420105

Pfeiffer H. (1940) Untersuchungen an der Cyperaceengattung Androtrichum Brongn. Revista Sudamerica de Botanica 6: 179–186.

Presl J., Presl C. (1828) Reliquiae Haenkeanae, seu descriptiones et icones plantarum quas in America Meridionali et Boreali. Prague, J.G. Calve. Available at https://www.biodiversitylibrary.org/page/390804#page/2/mode/1up [accessed 15 Aug. 2020].

Roalson E.H., Prata A.P., Mesterházy A., Chase M.W., Simpson D.A., Thomas W.W., Larridon I. (2019) A broader circumscription of Bulbostylis including Nemum (Abildgaardieae: Cyperaceae). Phytotaxa 395: 199–208. https://doi.org/10.11646/phytotaxa.395.3.4

Schrader H.A. (1835) Index Seminum Horti Academici Gottingensis. Gottingen.

Semmouri I., Bauters K., Léveillé-Bourret E., Starr J.R., Goetghebeur P., Larridon I. (2019) Phylogeny and systematics of Cyperaceae, the evolution and importance of embryo morphology. The Botanical Review 85(1): 1–39. https://doi.org/10.1007/s12229-018-9202-0

Simpson D.A., Muasya A.M., Alves M., Bruhl J.J., Dhooge S., Chase, M.W., Furness C.A., Ghamkhar K., Goetghebeur P., Hodkinson, T.R., Marchant A.D., Reznicek A.A., Nieuwborg R., Roalson E.H., Smets E., Starr J.R., Thomas W.W., Wilson K.L., Zhang X. (2007) Phylogeny of Cyperaceae based on DNA sequence data – a new rbcL analysis. Aliso 23: 72–83.

Sprengel C.P.J. (1824) Systema Vegetabilium, editio decima sexta 1. Göttingen. Available at https://www.biodiversitylibrary.org/page/6720283#page/1/mode/1up [accessed 15 Aug. 2020].

Steudel E.G. von (1854–1855) Synopsis plantarum glumacearum 2. Cyperaceae. J.B. Metzler, Stuttgart.

Thiers B. (continuously updated) Index Herbariorum: A global directory of public herbaria and associated staff. New York Botanical Garden’s Virtual Herbarium. Available at http://sweetgum.nybg.org/ih/ [accessed 29 Jan. 2020].

Turland N.J., Wiersema J.H., Barrie F.R., Greuter W., Hawksworth D.L., Herendeen P.S., Kusber W.H., Li D.Z., Marhold K., May T.W., McNeill J., Monro A.M., Prado J., Price M.J., Smith G.F. (eds) (2018) International Code of Nomenclature for algae, fungi, and plants (Shenzhen Code) adopted by the Nineteenth International Botanical Congress Shenzhen, China, July 2017. Regnum Vegetabile 159. Glashütten, Koeltz Botanical Books. https://doi.org/10.12705/Code.2018

Vahl M. (1805) Enumeratio plantarum 2. Impenis Viduae, Copenhagen. Available at https://www.biodiversitylibrary.org/page/546730#page/1/mode/1up [accessed 15 Aug. 2020].

Van der Veken P. (1965) Contribution à l’embryographie systématique des Cyperaceae-Cyperoideae. Bulletin du Jardin Botanique de l’État à Bruxelles 35(3): 285–354. https://doi.org/10.2307/3667185

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