Abstract
Spiradiclis yuanyangensis is described and illustrated from Yunnan Province in southwestern China. It is morphologically most similar to S. petrophila H. S. Lo, but differs from the latter mainly by its stem pubescent, corolla tube 4–5 mm (vs. ca. 2 mm) long, and short-styled corolla inside without a villous ring. A detailed description, line drawings and colour photographs are provided, together with notes on conservation status.
References
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Blume, C.L. (1825) Bijdragen tot de flora van Nederlandsch Indië. Lands Drukkerij, Batavia, 975 pp. https://doi.org/10.5962/bhl.title.115427
Bremekamp, C.E.B. (1952) The African species of Oldenlandia L. sensu Hiern et K. Schumann. Verhandelingen Der Koninklijke Nederlandse Akademie Van Wtenshappen, Afd. Natuurkunde, Tweede Reeks 48: 1–297.
Bremer, B. & Manen, J.F. (2000) Phylogeny and classification of the subfamily Rubioideae (Rubiaceae). Plant Systematics and Evolution 225: 43–72. https://doi.org/10.1007/BF00985458
Chen, T. & Taylor, C.M. (2011) Spiradiclis. In: Wu, Z.Y., Raven, P.H. & Hong, D.Y. (Eds.) Flora of China, vol. 19. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis, pp. 330–339.
IUCN Standards and Petitions Subcommittee (2019) Guidelines for Using the IUCN Red List Categories and Criteria. Version 14. IUCN Standards and Petitions Subcommittee.
Li, J.L., Yuan, Q., Liu, Y., Song, X.F., Pan, B., Qu, C.H. & Wu, L. (2021) Two new species of Spiradiclis (Rubiaceae) from limestone areas in southwestern China. Nordic Journal of Botany 39: e02979. https://doi.org/10.1111/njb.02979
Linnaeus, C. (1753) Species Plantarum, vol. 1. Laurentii Salvii, Stockholm, 560 pp.
Liu, J., Pan, B., Li, S.W. & Xu, W.B. (2018) Spiradiclis quanzhouensis (Rubiaceae): A new species from limestone area in Guangxi, China. Nordic Journal of Botany 36: 01595. https://doi.org/10.1111/njb.01595
Lo, H. S. (1999) Spiradiclis Bl. In: Lo, H.S. (Ed.) Flora Reipublicae Popularis Sincae, vol. 71 (1). Science Press, Beijing, pp. 86–110.
Lo, H.S. (1998) Materials for Chinese Rubiaceae (IV). Bulletin of Botanical Research, Harbin 18: 275–283.
Lo, H.S., Sha, W.L. & Chen, X.X. (1983) A revision of the genus of Spiradiclis Bl. (Rubiaceae). Acta Botanica Austro Sinica 1: 32–36.
Pan, B., Ma, H.S. & Wang, R.J. (2016) Spiradiclis pengshuiensis (Ophiorrhizeae, Rubioideae), a new species from Chongqing, China. PhytoKeys 63: 41–45. https://doi.org/10.3897/phytokeys.63.8016
Pan, B., Tu, R.H., Hareesh, V.S. & Wu, L. (2019) Spiradiclis cavicola (Rubiaceae), a new species from Limestone Caves in Southwestern China. Annales Botanici Fennici 56: 1–4. https://doi.org/10.5735/085.056.0101
Razafimandimbison, S.G. & Rydin, C. (2019) Molecular-based assessments of tribal and generic limits and relationships in Rubiaceae (Gentianales): Polyphyly of Pomazoteae and paraphyly of Ophiorrhizeae and Ophiorrhiza. Taxon 68: 72–91. https://doi.org/10.1002/tax.12023
Robbrecht, E. (1988) Tropical woody Rubiaceae. Opera Botanica Belgica 1: 599–602.
Rydin, C., Kainulainen, K., Razafimandimbison, S.G., Smedmark, J.E. & Bremer, B. (2009) Deep divergences in the coffee family and the systematic position of Acranthera. Plant Systematics and Evolution 278: 101–123. https://doi.org/10.1007/s00606-008-0138-4
Thiers, B. (2019) Index herbariorum. New York Botanical Garden’s Virtual Herbarium Database. Available from: http://sweetgum.nybg.org/ih/ (accessed 10 June 2021)
Verdcourt, B. (1958) Remarks on the classification of the Rubiaceae. Bulletin van den Rijksplantentuin, Brussel 28: 209–281. https://doi.org/10.2307/3667090
Wang, R.J. (2002) Two New Species of Spiradiclis (Rubiaceae) from China. Novon 12: 420–423. https://doi.org/10.2307/3393092
Wang, R.J. (2016a) Spiradiclis jingxiensis sp. nov. (Rubiaceae) from Guangxi, China. Nordic Journal of Botany 34: 550–552. https://doi.org/10.1111/njb.01134
Wang, R.J. (2016b) Spiradiclis yangchunensis (Rubiaceae), a new species from Guangdong, China. Plant Science Journal 34: 13–17.
Wang, R.J., Wen, H.Z., Deng, S.J. & Zhou, L.X. (2015) Spiradiclis danxiashanensis (Rubiaceae), a new species from South China. Phytotaxa 206: 30–36. https://doi.org/10.11646/phytotaxa.206.1.5
Wen, H.Z., Wang, R.J. & Deng, S.J. (2015) Spiradiclis longanensis, a new species of Rubiaceae from China. PhytoKeys 55: 113–117. https://doi.org/10.3897/phytokeys.55.4975
Wen, Z.J., Yang, J.C., Xu, Y.F. & Wu, L. (2019) Spiradiclis densa sp. nov. (Rubiaceae) from limestone areas in guangxi, china. Nordic Journal of Botany 37: e02190. https://doi.org/10.1111/njb.02190
Wikström, N., Neupane, S., Karehed, J., Motley, T.J. & Bremer, B. (2013) Phylogeny of Hedyotis L. (Rubiaceae: Spermacoceae): Redefining a complex Asian-Pacific assemblage. Taxon 62: 357–374. https://doi.org/10.12705/622.2
Wu, L., Li, X., Liu, W.J. & Liu, Q.R. (2019) Spiradiclis karstana (Rubiaceae), a new species from Yunnan, China. PhytoKeys 117: 1–8. https://doi.org/10.3897/phytokeys.117.28281
Wu, L., Tong, Y., Pan, B. & Liu,. Q.R. (2016) Spiradiclis glabra sp. nov. (Rubiaceae) from limestone area in Guangdong, China. Nordic Journal of Botany 34: 718–721. https://doi.org/10.1111/njb.01156
Wu, L., Wang, B.M., Pan, B. & Yu, X.L. (2019) Spiradiclis tubiflora (Rubiaceae), a new cave-dwelling species from southern China. PhytoKeys 130: 217–224. https://doi.org/10.3897/phytokeys.130.34625
Wu, L., Wang, J.L. & Liu, Q.R. (2015a) Spiradiclis pauciflora (Rubiaceae), a new species from limestone areas in Guangxi, China. Annales Botanici Fennici 52: 257–261. https://doi.org/10.5735/085.052.0318
Wu, L., Wang, J.L., Mo, S.S. & Liu, Q.R. (2015b) Spiradiclis glandulosa sp. nov. (Rubiaceae) from limestone areas in southern China. Nordic Journal of Botany 33: 79–82. https://doi.org/10.1111/njb.00577
Zhang, F., Liu, Y., Wen, Z.J. & Wu, L. (2018) Spiradiclis lui, a new species of Rubiaceae from Guangxi, China. Nordic Journal of Botany 2018: e01786. https://doi.org/10.1111/njb.01786
Blume, C.L. (1825) Bijdragen tot de flora van Nederlandsch Indië. Lands Drukkerij, Batavia, 975 pp. https://doi.org/10.5962/bhl.title.115427
Bremekamp, C.E.B. (1952) The African species of Oldenlandia L. sensu Hiern et K. Schumann. Verhandelingen Der Koninklijke Nederlandse Akademie Van Wtenshappen, Afd. Natuurkunde, Tweede Reeks 48: 1–297.
Bremer, B. & Manen, J.F. (2000) Phylogeny and classification of the subfamily Rubioideae (Rubiaceae). Plant Systematics and Evolution 225: 43–72. https://doi.org/10.1007/BF00985458
Chen, T. & Taylor, C.M. (2011) Spiradiclis. In: Wu, Z.Y., Raven, P.H. & Hong, D.Y. (Eds.) Flora of China, vol. 19. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis, pp. 330–339.
IUCN Standards and Petitions Subcommittee (2019) Guidelines for Using the IUCN Red List Categories and Criteria. Version 14. IUCN Standards and Petitions Subcommittee.
Li, J.L., Yuan, Q., Liu, Y., Song, X.F., Pan, B., Qu, C.H. & Wu, L. (2021) Two new species of Spiradiclis (Rubiaceae) from limestone areas in southwestern China. Nordic Journal of Botany 39: e02979. https://doi.org/10.1111/njb.02979
Linnaeus, C. (1753) Species Plantarum, vol. 1. Laurentii Salvii, Stockholm, 560 pp.
Liu, J., Pan, B., Li, S.W. & Xu, W.B. (2018) Spiradiclis quanzhouensis (Rubiaceae): A new species from limestone area in Guangxi, China. Nordic Journal of Botany 36: 01595. https://doi.org/10.1111/njb.01595
Lo, H. S. (1999) Spiradiclis Bl. In: Lo, H.S. (Ed.) Flora Reipublicae Popularis Sincae, vol. 71 (1). Science Press, Beijing, pp. 86–110.
Lo, H.S. (1998) Materials for Chinese Rubiaceae (IV). Bulletin of Botanical Research, Harbin 18: 275–283.
Lo, H.S., Sha, W.L. & Chen, X.X. (1983) A revision of the genus of Spiradiclis Bl. (Rubiaceae). Acta Botanica Austro Sinica 1: 32–36.
Pan, B., Ma, H.S. & Wang, R.J. (2016) Spiradiclis pengshuiensis (Ophiorrhizeae, Rubioideae), a new species from Chongqing, China. PhytoKeys 63: 41–45. https://doi.org/10.3897/phytokeys.63.8016
Pan, B., Tu, R.H., Hareesh, V.S. & Wu, L. (2019) Spiradiclis cavicola (Rubiaceae), a new species from Limestone Caves in Southwestern China. Annales Botanici Fennici 56: 1–4. https://doi.org/10.5735/085.056.0101
Razafimandimbison, S.G. & Rydin, C. (2019) Molecular-based assessments of tribal and generic limits and relationships in Rubiaceae (Gentianales): Polyphyly of Pomazoteae and paraphyly of Ophiorrhizeae and Ophiorrhiza. Taxon 68: 72–91. https://doi.org/10.1002/tax.12023
Robbrecht, E. (1988) Tropical woody Rubiaceae. Opera Botanica Belgica 1: 599–602.
Rydin, C., Kainulainen, K., Razafimandimbison, S.G., Smedmark, J.E. & Bremer, B. (2009) Deep divergences in the coffee family and the systematic position of Acranthera. Plant Systematics and Evolution 278: 101–123. https://doi.org/10.1007/s00606-008-0138-4
Thiers, B. (2019) Index herbariorum. New York Botanical Garden’s Virtual Herbarium Database. Available from: http://sweetgum.nybg.org/ih/ (accessed 10 June 2021)
Verdcourt, B. (1958) Remarks on the classification of the Rubiaceae. Bulletin van den Rijksplantentuin, Brussel 28: 209–281. https://doi.org/10.2307/3667090
Wang, R.J. (2002) Two New Species of Spiradiclis (Rubiaceae) from China. Novon 12: 420–423. https://doi.org/10.2307/3393092
Wang, R.J. (2016a) Spiradiclis jingxiensis sp. nov. (Rubiaceae) from Guangxi, China. Nordic Journal of Botany 34: 550–552. https://doi.org/10.1111/njb.01134
Wang, R.J. (2016b) Spiradiclis yangchunensis (Rubiaceae), a new species from Guangdong, China. Plant Science Journal 34: 13–17.
Wang, R.J., Wen, H.Z., Deng, S.J. & Zhou, L.X. (2015) Spiradiclis danxiashanensis (Rubiaceae), a new species from South China. Phytotaxa 206: 30–36. https://doi.org/10.11646/phytotaxa.206.1.5
Wen, H.Z., Wang, R.J. & Deng, S.J. (2015) Spiradiclis longanensis, a new species of Rubiaceae from China. PhytoKeys 55: 113–117. https://doi.org/10.3897/phytokeys.55.4975
Wen, Z.J., Yang, J.C., Xu, Y.F. & Wu, L. (2019) Spiradiclis densa sp. nov. (Rubiaceae) from limestone areas in guangxi, china. Nordic Journal of Botany 37: e02190. https://doi.org/10.1111/njb.02190
Wikström, N., Neupane, S., Karehed, J., Motley, T.J. & Bremer, B. (2013) Phylogeny of Hedyotis L. (Rubiaceae: Spermacoceae): Redefining a complex Asian-Pacific assemblage. Taxon 62: 357–374. https://doi.org/10.12705/622.2
Wu, L., Li, X., Liu, W.J. & Liu, Q.R. (2019) Spiradiclis karstana (Rubiaceae), a new species from Yunnan, China. PhytoKeys 117: 1–8. https://doi.org/10.3897/phytokeys.117.28281
Wu, L., Tong, Y., Pan, B. & Liu,. Q.R. (2016) Spiradiclis glabra sp. nov. (Rubiaceae) from limestone area in Guangdong, China. Nordic Journal of Botany 34: 718–721. https://doi.org/10.1111/njb.01156
Wu, L., Wang, B.M., Pan, B. & Yu, X.L. (2019) Spiradiclis tubiflora (Rubiaceae), a new cave-dwelling species from southern China. PhytoKeys 130: 217–224. https://doi.org/10.3897/phytokeys.130.34625
Wu, L., Wang, J.L. & Liu, Q.R. (2015a) Spiradiclis pauciflora (Rubiaceae), a new species from limestone areas in Guangxi, China. Annales Botanici Fennici 52: 257–261. https://doi.org/10.5735/085.052.0318
Wu, L., Wang, J.L., Mo, S.S. & Liu, Q.R. (2015b) Spiradiclis glandulosa sp. nov. (Rubiaceae) from limestone areas in southern China. Nordic Journal of Botany 33: 79–82. https://doi.org/10.1111/njb.00577
Zhang, F., Liu, Y., Wen, Z.J. & Wu, L. (2018) Spiradiclis lui, a new species of Rubiaceae from Guangxi, China. Nordic Journal of Botany 2018: e01786. https://doi.org/10.1111/njb.01786