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Issue: Vol. 638 No. 2: 29 Feb. 2024
Type: Article
Published: 2024-02-29
DOI: 10.11646/phytotaxa.638.2.1
Page range: 105-130
Abstract views: 76
PDF downloaded: 2

Taxonomic study of Pan-Himalayan Cyperus species which used to be placed in the segregate genus Pycreus

State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China. China National Botanical Garden, Beijing, 100093, China. University of Chinese Academy of Sciences, Beijing, 100049, China.
State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China. China National Botanical Garden, Beijing, 100093, China. University of Chinese Academy of Sciences, Beijing, 100049, China.
University of Chinese Academy of Sciences, Beijing, 100049, China. Centre for Integrative Conservation & Yunnan Key Laboratory for the Conservation on Tropical Rainforests and Asian Elephants, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan, 666303, China.
Nepal Academy of Science and Technology, Lalitpur, Nepal.
State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China. China National Botanical Garden, Beijing, 100093, China.
State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China. China National Botanical Garden, Beijing, 100093, China.
Cyperaceae Cyperus africanus lectotype Nepal Himalaya new combination synonym SEM typification weeds Monocots

Abstract

This paper presents a taxonomic account of the Cyperus species which used to be placed in the segregate genus Pycreus (hereafter: Pycreus species) within the Pan-Himalaya, based on morphological and micromorphological studies. Twelve Pycreus species have been identified in the Pan-Himalaya region. Taxonomic keys, descriptions, type information, ecology, and distribution notes are provided for each species. The taxonomic significance of nutlet micromorphology is discussed, supported by high-quality digital images and scanning electron microscope (SEM) observations. Cyperus diaphanus var. gracilescens and Pycreus pseudolatespicatus are synonymized with C. diaphanus. A new combination is proposed for P. lijiangensis, and lectotypes are designated for C. angulatus, C. diaphanus, C. substramineus, C. sulcinux, C. delavayi and P. lijiangensis. Additionally, C. africanus is reported for the first time outside Africa.

References

  1. Baker, J.G. (1883) Contributions to the Flora of Madagascar.-Part III. Incompletae, Monocotyledons, and Filices. Journal of the Linnean Society of London, Botany 20: 237–304. https://doi.org/10.1111/j.1095-8339.1883.tb00262.x
  2. 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 sl (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
  3. Beauvois, A.M.F.J., Palisot de (1816) Flore d’Oware et de Bénin, en Afrique 2 (15). Imprimerie de Fain, Paris. Imprimerie de Fain, Paris. 95 pp.
  4. Boeckeler, J.O. (1859) Beschreibungen neuer Cyperaceen, nebst berichtigenden Bemerkungen über einige ältere Cyperus-Arten. Flora 42: 433–448.
  5. Brown, R. (1810) Prodromus florae Novae-Hollandiae et Insulae van-Diemen. Typis R. Taylor et socii, London.
  6. Browning, J., Gordon-Gray, K.D., Lock, M., Beentje, H., Vollesen, K., Bauters, K., Archer, C., Larridon, I., Xanthos, M., Vorster, P., Bruhl, J., Wilson, K. & Zhang, X. (2020) Cyperaceae. In: García, M.A. & Timberlake, J.R. (Eds.) Flora Zambesiaca. Royal Botanic Gardens, Kew for Flora Zambesiaca Managing Committee, London, pp. 1–455.
  7. Cafferty, S. & Jarvis, C.E. (2004) Typification of Linnaean plant names in Cyperaceae. Taxon 53: 177–181. https://doi.org/10.2307/4135509
  8. Clarke, C.B. (1884) On the Indian Species of Cyperus; with remarks on some others that specially illustrate the Subdivisions of the Genus. Journal of the Linnean Society of London, Botany 21: 1–202. https://doi.org/10.1111/j.1095-8339.1884.tb00540.x
  9. Clarke, C.B. (1893) Cyperaceae. In: Flora of British India. pp. 585–748.
  10. Clarke, C.B. (1898) On the Subsubareas of British India, illustrated by the detailed distribution of the Cyperaceøe in that Empire. Botanical Journal of the Linnean Society 34: 1–146.
  11. Clarke, C.B. (1903) An enumeration of all the plants known from China Proper, Formosa, Hainan, Corea, the Luchu Archipelago, and the Island of Hongkong, together with their Distribution and Synonymy. The Journal of the Linnean Society 36: 202–319.
  12. Dai, L.K., Tucker, G.C. & Simpson, D.A. (2010) Pycreus P.Beauvois. In: Wu, Z.Y., Raven, P.H. & Hong, D.-Y. (Eds.) Flora of China, vol. 23. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis, pp. 242–246.
  13. Fischer, C.E.C. (1932) The Koenig collection in the Lund herbarium. Bulletin of Miscellaneous Information, (Royal Botanic Gardens, Kew) 1932: 49–76.
  14. Fischer, F.E.L. von & Meyer, C.A. von (1841) Enumeratio Plantarum Novarum CL. Schrenk Lectarum. Typis G. Fischeri, Petropolitani. 113 pp.
  15. Goetghebeur, P. (1998) Cyperaceae. In: Kubitzki, K. (Ed.) The families and genera of vascular plants 4. Flowering plants – monocotyledons. Springer Berlin Heidelberg, Berlin, Heidelberg, pp. 141–190.
  16. Govindarajalu, E. (1990) Cyperaceae Indiae Australis Precursores: New species and scanning electron microscopic observations in Pycreus Sect. Muricati. Proceedings / Indian Academy of Sciences 100: 415–422. https://doi.org/10.1007/BF03053489
  17. Hooper, S.S. (1972) New taxa, names and combinations in Cyperaceae for the “Flora of West Tropical Africa.” Kew Bulletin 26: 577–583. https://doi.org/10.2307/4120322
  18. Hooper, S.S. (1976) Cyperaceae. In: Saldanha, C.J. & Nicolson, D.H. (Eds.) Flora of Hassan District, Karnataka, India. Amerind Publishing Co. Pvt. Ltd., New Delhi.
  19. Jin, X.-F. & Zhang, S.-R. (2020) Carex. In: Hong, D.-Y., Jin, X.-F. & Zhang, S.-R. (Eds.) Flora of Pan-Himalaya 12(2), Cyperaceae II. Carex. Science Press, Beijing, pp. 1–421.
  20. Karthikeyan, S.J., Nayar, M.P. & Sanjappa, M. (1989) Florae Indicae Enumeratio: Monocotyledonae. Flora of India: Series 4. Botanical Survey of India, Kolkata. 435 pp.
  21. Kern, J.H. (1954) Notes on Malaysian Cyperaceae-II. Reinwardtia 3: 27–66.
  22. Kern, J.H. (1974) Cyperaceae. Cyperaceae. In: van Steenis, C.G.G.J. (Ed.) Flora Malesiana series I–Spermatophyta Flowering Plants. pp. 435–753.
  23. Khoi, N.K. (1981) Conspectus specierum tribus Cypereae Nees (Cyperaceae) Florae Vietnami. Novitates Systematicae Plantarum Vascularium 18: 124–145.
  24. Korlahalli, B.C. (1967) Notes on Indian Cyperaceae. Bulletin of the Botanical Society of India 9: 236–239.
  25. Koyama, T. (1976) Nomenclatural remarks on some Cyperaceae from southeastern Asia. Journal of Japanese Botany 51: 316–317.
  26. Koyama, T. (1978) Cyperaceae. In: Hara, H., Stearn, W.T. & Williams, L.H.J. (Eds.) An Enumeration of the Flowering Plants of Nepal. British Museum (Natural History), London, pp. 96–120.
  27. Koyama, T. (1985) A Revised Handbook to the Flora of Ceylon, Vol. 5. Oxford & IBH Publishing Co., New Delhi. 405 pp.
  28. Kükenthal, G. (1913) Cyperaceae novae III. Repertorium Specierum Novarum Regni Vegetabilis 12: 91–95.
  29. Kükenthal, G. (1936) Cyperaceae-Scirpoideae-Cypereae. In: Engler, A. (Ed.) Das Pflanzenreich (IV) 20, Heft 101 (3). Wilhelm Engelmann, Leipzig, pp. 321–480.
  30. Larridon, I., Reynders, M., Huygh, W., Bauters, K., Vrijdaghs, A., Leroux, O., Muasya, A.M., Simpson, D.A. & Goetghebeur, P. (2011) Taxonomic changes in C3 Cyperus (Cyperaceae) supported by molecular data, morphology, embryography, ontogeny and anatomy. Plant Ecology and Evolution 144: 327–356. https://doi.org/10.5091/plecevo.2011.653
  31. 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: 106–126. https://doi.org/10.1111/boj.12020
  32. 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: 33–48. https://doi.org/10.11646/phytotaxa.166.1.2
  33. Larridon, I., Zuntini, A.R., Léveillé-Bourret, É., Barrett, R.L., Starr, J.R., Muasya, A.M., Villaverde, T., Bauters, K., Brewer, G.E. & Bruhl, J.J. (2021) A new classification of Cyperaceae (Poales) supported by phylogenomic data. Journal of Systematics and Evolution 59: 852–895. https://doi.org/10.1111/jse.12757
  34. Linnaeus, C. (1753) Species Plantarum. Laurentii Salvii. 1200 pp.
  35. Linnaeus, C. (1756) Centuria II. Plantarum. Uppsala. 34 pp.
  36. Lu, Y.-F., Zheng, C.-Z., Chen, J.-M., Ye, L.-X., Liu, S.-L. & Jin, X.-F. (2017) Novelties in Fimbristylis (Cyperaceae) from Zhejiang, China: two new species and a new variety. Phytotaxa 309: 127. https://doi.org/10.11646/phytotaxa.309.2.3
  37. Miquel, F.A.W. (1855) Flora van Nederlandsch Indië. Fleischer, Leipzig. 773 pp.
  38. Nees von Esenbeck, C.G. (1834) Cyperaceae Indicae. In: Wright, R. (Ed.) Contributions to the Botany of India. Allen & Co., London, pp. 69–129.
  39. Nees von Esenbeck, C.G. (1836) Uebersicht der Cyperaceengattungen. Linnaea 9: 273–306.
  40. Nees von Esenbeck, C.G. (1843) Cyperaceae. Novorum Actorum Academiae Caesareae Leopoldinae-Carolinae Naturae Curiosorum 19: 53–124.
  41. Pereira-Silva, L., Larridon, I., de Oliveira Ribeiro, A.R., Santos, V.M. & Trevisan, R. (2022) Diversity and Taxonomy of Cyperus (Cyperaceae) in the Central-West Region of Brazil. Annals of the Missouri Botanical Garden 107: 480–545. https://doi.org/10.3417/2022760
  42. Pereira-Silva, L., Trevisan, R., Rodrigues, A.C. & Larridon, I. (2020) Combining the small South American genus Androtrichum into Cyperus (Cyperaceae). Plant Ecology and Evolution 153: 446–454.
  43. POWO (2023) Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Available from: https://powo.science.kew.org/ (accessed: 23 August 2023).
  44. Prasad, V.P. & Simpson, D.A. (2013) Pycreus flavidus (Cyperaceae) – a highly variable species in India. Rheedea 23: 7–9.
  45. Rafinesque, C.S. (1819) Prodrome: des nouveaux genres de plantes observés en 1817 et 1818 dans l’intérieur des États-Unis d’Amérique. Journal de Physique, de Chimie, d’Histoire Naturelle et des Arts 89: 96–107.
  46. Reichenbach, H.G.L. (1830) Flora Germanica Excursoria. Carolum Cnobloch, Leipzig.
  47. Retzius, A.J. (1788) Observationes botanicae 5. Siegfried Lebrecht Crusium, Leipzig.
  48. Reynders, M. (2013) The challenging taxonomy and evolution of C4 Cyperus (Cyperaceae). A focus on Pycreus and its laterally flattened pistils. Ghent University, Belgium. 382 pp.
  49. Reynders, M. & Goetghebeur, P. (2010) Reestablishment of Pycreus section Tuberculati (Cyperaceae). Blumea 55: 226–230. https://doi.org/10.3767/000651910X539993
  50. Rikli, M. (1895) Beiträge zur vergleichenden anatomie der Cyperaceen mit besonderer berücksichtigung der inneren parenchymscheide. Jahrbücher für Wissenschaftliche Botanik 27: 485–580.
  51. Rottbøll, C.F. (1772) Descriptiones Plantarum Rariorum Iconibus Illustrandas. N. Mölleri, Copenhagen. 32 pp.
  52. Saxena, H.O. (1973) Contribution to the Flora of Madhya Pradesh-II. Indian Forester 99: 505–507. https://doi.org/10.36808/if/1973/v99i8/26751
  53. Schultes, J.A. (1824) Triandriae, Monogyniae. Mantissa 2: 39–522.
  54. Shrestha, K.K., Bhandari, P. & Bhattarai, S. (2022) Plants of Nepal (Gymnosperms and Angiosperms). Heritage Publishers & Distributors, Kathmandu. 1088 pp.
  55. Stafleu, F.A. & Cowan, R.S. (1985) Taxonomic literature: a selective guide to botanical publications and collections with dates, commentaries and types Volume v: Sal-Ste. Bohn, Scheltema & Holkema, Utrecht/Antwerpen dr. W. Junk b.v., Hague/Boston.
  56. Steudel, E.G. (1854) Synopsis plantarum glumacearum Part I. J.B. Metzler, Stuttgartiae. 475 pp.
  57. Steudel, E.G. (1855) Synopsis plantarum glumacearum Part II. J.B. Metzler, Stuttgartiae. 348 pp.
  58. Tang, J. & Wang, F. (1961) Cyperaceae (part 1) Scirpeae-Sclerieae, Flora Reipublicae Popularis Sinicae, 11. Science Press, Beijing. 261 pp.
  59. Thiers, B. (2023 onwards) Index Herbariorum: A global directory of public herbaria and associated staff. New York Botanical Garden’s Virtual Herbarium. Available from: http://sweetgum.nybg.org/science/ih/ (accessed: 15 November 2023).
  60. Tucker, G.C. (1983) The Taxonomy of Cyperus (Cyperaceae) in Costa Rica and Panama. Systematic Botany Monographs 2: 1–85. https://doi.org/10.2307/25027589
  61. Turland, N., Wiersema, J., Barrie, F., Greuter, W., Hawksworth, D., Herendeen, P., Knapp, S., Kusber, W.-H., Li, D.-Z., Marhold, K., May, T., McNeill, J., Monro, A., Prado, J., Price, M. & Smith, G. Eds. (2018) International Code of Nomenclature for algae, fungi, and plants (Shenzhen Code) adopted by the Nineteenth International Botanical Congress Shenzhen, China, July 2017. Koeltz Botanical Books.
  62. Urban, I. (1900) Mantissa ad Cyperaceas Clarkeanas. Symbolae Antillanae seu Fundamenta Florae Indiae Occidentalis 2: 163–169.
  63. Vahl, M. (1805) Enumeratio Plantarum. Hauniae, Typis N. Molleri ct Filii, Anlae Regiae et Universitatis Typographorum. 423 pp.
  64. Vrijdaghs, A., Reynders, M., Muasya, A.M., Larridon, I., Goetghebeur, P. & Smets, E.F. (2011) Morphology and development of spikelets and flowers in Cyperus and Pycreus (Cyperaceae). Plant Ecology and Evolution 144: 44–63. https://doi.org/10.5091/plecevo.2011.436
  65. Wang, Q. & Hong, D.-Y. (2022) Understanding the plant diversity on the roof of the world. The Innovation 3: 100215. https://doi.org/10.1016/j.xinn.2022.100215