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Issue: Vol. 591 No. 2: 4 April 2023
Type: Article
Published: 2023-04-04
DOI: 10.11646/phytotaxa.591.2.7
Page range: 155-163
Abstract views: 122
PDF downloaded: 3

Aristolochia laotica (subgen. Siphisia), a new species from Northeastern Laos

Vietnam National Museum of Nature, Vietnam Academy of Science & Technology, 18thHoang Quoc Viet Road, Cau Giay, Hanoi, Vietnam. Graduate University of Science and Technology, Vietnam Academy of Science & Technology, 18th Hoang Quoc Viet Road, Cau Giay, Hanoi, Vietnam.
Bac Giang Agriculture and Forestry University, Bich Dong, Viet Yen, Bac Giang, Vietnam
Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, CN-541006 Guilin, China
Institut für Botanik, Technische Universität Dresden, Zellescher Weg 20b, D-01062 Dresden, Germany. Departamento de Botánica, Instituto de Biología, Universidad Nacional Autónoma de México 04510 Mexico City, Mexico
Monitor Geological Services, Phou Koud District, Xieng Khouang, Laos
Faculty of Forest Science, National University of Laos, Vientiane, Laos
Aristolochiaceae flora of Laos new taxon Piperales Magnoliids

Abstract

Aristolochia laotica, a new species from Northeastern Laos, is described and illustrated here. The horseshoe-shaped perianth tube, the 3-lobed limb, and the 3-lobed gynostemium support its placement into Aristolochia subgenus Siphisia. Of the species with cylindric or saccate-shaped limb, the new species resembles A. vuquangensis. However, it differs from the latter by having an oblanceolate to narrowly elliptic leaf lamina with a truncate to shallowly cordate base, pinnate veins, sparsely brown hirsute to glabrescent perianth, uniformly purple inner surface of utricle, indistinct, straight, strongly inflated limb lobes, and pubescent and warty inner surface of the limb lobes. Detailed description, color illustrations, and remarks on ecology, conservation status are also provided, along with a key to species reported in Laos and comparison with its similar species.

References

<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span style="color: #050000;"><span lang="en-GB">Bosser, J. (1997) Identit</span></span><span lang="en-GB">é de </span><span lang="en-GB"><em>Aristolochia acuminata</em></span><span lang="en-GB"> Lam. et de </span><span lang="en-GB"><em>A. tagala</em></span><span lang="en-GB"> Cham. (Aristolochiaceae). </span><span lang="en-GB"><em>Adansonia </em></span><span lang="en-GB">19 (1): 169–170.</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Do, T.V., Luu, T.H., Wanke, S. &amp; Neinhuis, C. (2015) Three new species and three new records of</span><span lang="it-IT"><em> Aristolochia </em></span><span lang="de-DE">subgenus </span><span lang="en-GB"><em>Siphisia </em></span><span lang="en-GB">from Vietnam, including a key to the Asian species. </span><span lang="en-GB"><em>Systematic Botany </em></span><span lang="en-GB">40: 671–691. https://doi.org/10.1600/036364415X689140</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Do, T.V., Nguyen, H.V. &amp; Le, K.D. (2021) </span><span lang="en-GB"><em>Aristolochia vuquangensis</em></span><span lang="en-GB"> (Aristolochiaceae), a new species from Central Vietnam. </span><span lang="en-GB"><em>Phytotaxa</em></span><span lang="en-GB"> 500 (1): 37–44. https://doi.org/10.11646/phytotaxa.500.1.5</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Duchartre, P. (1854) Tentamen methodicae divisionis generis </span><span lang="it-IT"><em>Aristolochia</em></span><span lang="it-IT">, additis descriptionibus complurium novarum specierum novique generis </span><span lang="en-GB"><em>Holostylis</em></span><span lang="en-GB">. </span><span lang="fr-FR"><em>Annales des Sciences Naturelles, 4a</em></span><span lang="en-GB">. S</span><span lang="fr-FR">é</span><span lang="en-GB">r. 2: 29–76.</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="it-IT">Duchartre, P. (1864) Aristolochiaceae. </span><span lang="en-GB"><em>In</em></span><span lang="it-IT">: Candolle, A.P. de (Ed.) </span><span lang="it-IT"><em>Prodromus systematis naturalis regni vegetabilis</em></span><span lang="it-IT">, vol. 15. Masson, Paris, pp. 421</span><span lang="en-GB">–498. https://doi.org/10.5735/085.054.0602</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Editorial Committee (1960-2004) </span><span lang="en-GB"><em>Flore du Cambodge, du Laos et du Viêtnam</em></span><span lang="en-GB">. Muséum national d’histoire naturelle, Paris.</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Gagnepain, F., Humbert, H. &amp; Lecomte, H. (1907) </span><span lang="en-GB"><em>Flore générale de l’Indo-Chine</em></span><span lang="en-GB">. Muséum national d’histoire naturelle, Paris. https://doi.org/10.5962/bhl.title.59355</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="it-IT">Gonz</span><span lang="en-GB">ález, F. &amp; Stevenson, D.W. (2002) A phylogenetic analysis of the subfamily Aristolochioideae (Aristolochiaceae). </span><span lang="en-GB"><em>Revista de la Academia Colombiana de Ciencias Exactas </em></span><span lang="en-GB">26: 25–60.</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="it-IT">Gonz</span><span lang="en-GB">ález, F., Wagner, S.T., Salomo, K., Samain, M.S., Isnard, S., Rowe, N.K., Neinhuis, C. &amp; Wanke, S. (2014) Present trans-Pacific disjunct distribution of </span><span lang="it-IT"><em>Aristolochia </em></span><span lang="de-DE">subgenus </span><span lang="en-GB"><em>Isotrema </em></span><span lang="en-GB">(Aristolochiaceae) was shaped by dispersal, vicariance, and extinction. </span><span lang="fr-FR"><em>Journal</em></span> <span lang="en-GB"><em>of Biogeography </em></span><span lang="ru-RU">41: 380</span><span lang="en-GB">–391. https://doi.org/10.1111/jbi.12198</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Harris, J.G. &amp; Harris, M.W. (2001) </span><span lang="en-GB"><em>Plant Identification Terminology: An Illustrated Glossary</em></span><span lang="en-GB"> (2nd). Spring Lake Pub., Spring Lake, Utah, 216 pp.</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Hooker, W.J. (1856) </span><span lang="en-GB"><em>Curtis’s Botanical Magazine, comprising the plants of the Royal Gardens of Kew and other botanical establishments in Great Britain, with suitable description</em></span><span lang="pt-PT">, vol. 82: Tab., 4918.</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="it-IT">Huber, H. (1993) Aristolochiaceae. </span><span lang="de-DE"><em>In: </em></span><span lang="de-DE">Kubitzki, K., Rohwer, J.G. &amp; Bittrich, V. (Eds.) </span><span lang="en-GB"><em>The families and genera of vascular plants</em></span><span lang="en-GB">. Springer, Berlin, pp. 129–137. https://doi.org/10.1007/978-3-662-02899-5_10</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Hwang, S.M. (1981) Materials for Chinese </span><span lang="it-IT"><em>Aristolochia</em></span><span lang="en-GB">. </span><span lang="it-IT"><em>Acta Phytotaxonomica Sinica </em></span><span lang="it-IT">19 (2): 222–231. [in Chinese]</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Hwang, S.M., Kelly, L.M. &amp; Gilbert, M.G. (2003) </span><span lang="it-IT"><em>Aristolochia </em></span><span lang="it-IT">Linnaeus. </span><span lang="en-GB"><em>In</em></span><span lang="en-GB">: Wu, Z.Y., Raven, P.H. &amp; Hong, D.Y. (Eds.) </span><span lang="en-GB"><em>Flora of China </em></span><span lang="en-GB">5. Science Press, Beijing &amp; Missouri Botanical Garden Press, St. Louis, pp. 258–269.</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">IUCN (2012) </span><span lang="de-DE"><em>IUCN Red List Categories and Criteria, Version 3.1</em></span><span lang="en-GB"> (2</span><sup><span lang="en-GB">nd</span></sup><span lang="en-GB">Ed.) Gland and Cambridge, 32 pp.</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">IUCN Standards and Petitions Subcommittee (2019) </span><span lang="en-GB"><em>Guidelines for Using the IUCN Red List Categories and Criteria, Version 14</em></span><span lang="en-GB">. Prepared by the Standards and Petitions Subcommittee. Available from: https://www.iucnredlist.org/resources/redlistguidelines (accessed 28 December 2020)</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Le, K.D. &amp; Do, T.V. (2022) Two new records of </span><span lang="en-GB"><em>Aristolochia </em></span><span lang="en-GB">(Aristolochiaceae) for the Flora of Lao PDR. </span><span lang="en-GB"><em>Acta Phytotaxonomica et Geobotanica</em></span><span lang="en-GB"> 73 (2): 159–163. https://doi.org/10.18942/apg.202118</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Lecomte, H. (1909) Aristolochiaceae d’ Indo-Chine. </span><span lang="en-GB"><em>Notulae Systematicae</em></span><span lang="en-GB"> 1: 72–76.</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Lecomte, H. (1910) Aristolochiaceae. </span><span lang="en-GB"><em>In</em></span><span lang="en-GB">: Lecomte, H. (ed.)</span><span lang="en-GB"><em> Flore Générale de l’Indo-Chine</em></span><span lang="en-GB">, vol. 4. Masson, Paris, pp. 55–59.</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="it-IT">Liang, C.F. (1975) The Aristolochiaceae of Kwangsi Flora. </span><span lang="it-IT"><em>Acta Phytotaxonomica Sinica </em></span><span lang="it-IT">13 (2): 10–28. [in Chinese]</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Linnaeus, C. von (1753) </span><span lang="de-DE"><em>Species Plantarum </em></span><span lang="de-DE">2. </span><span lang="en-GB">Impensis Laurentii Salvii, Holmiae [Stockholm], pp. 561–1200. https://doi.org/10.5962/bhl.title.669</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Loureiro, J. de. (1790) </span><span lang="en-GB"><em>Flora cochinchinensis</em></span><span lang="en-GB">. Ulyssipone: Typis, et expensis Academicis.</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Ma, J.S. (1989) A revision of </span><span lang="it-IT"><em>Aristolochia </em></span><span lang="en-GB">Linn. from E. &amp; S. Asia. </span><span lang="it-IT"><em>Acta Phytotaxonomica Sinica </em></span><span lang="en-GB">27: 321–364. [in Chinese]</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Middleton, D.J., Armstrong, K., Baba, Y., Balslev, H., Chayamarit, K., Chung, R.C.K., Conn, B.J., Fernando, E.S., Fujikawa, K., Kiew, R., Luu, H.T., Mu Mu Aung, Newman, M.F., Tagane, S., Tanaka, N., Thomas, D.C., Tran, T.B., Utteridge, T.M.A., Welzen, P.C. van, Widyatmoko, D., Yahara, T. &amp; Wong, K.M. (2019) Progress on Southeast Asia’s flora projects. </span><span lang="en-GB"><em>Gardens’ Bulletin Singapore</em></span><span lang="en-GB"> 71: 267–319.</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Newman, M.F., Ketphanh, S., Svengsuksa, B., Thomas, P., Sengdala, K., Lamxay, V. &amp; Armstrong, K. (2007) </span><span lang="en-GB"><em>A checklist of the vascular plants of Lao PDR</em></span><span lang="en-GB">. Royal Botanic Garden, Edinburgh, 394 pp.</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Newman, M.F., Pullan, M., Ketphanh, S., Svengsuksa, B., Thomas, P., Sengdala, K., Lamxay, V. &amp; Armstrong, K. (2017 [continuously updated]) A checklist of the vascular plants of Lao PDR. [Online database available at https://padme.rbge.org.uk/laos/] </span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Nguyen, Q.B., Nguyen, H.C., Tran, D.B., Nguyen, P.H. &amp; Luu, H.T. (2022)&nbsp;</span><span lang="en-GB"><em>Isotrema putalengense</em></span><span lang="en-GB">, A new species of Aristolochiaceae from northern Vietnam and two new combinations in</span><span lang="en-GB"><em>&nbsp;Isotrema</em></span><span lang="en-GB">.&nbsp;</span><span lang="en-GB"><em>PhytoKeys</em></span><span lang="en-GB">&nbsp;197: 71–79. https://doi.org/10.3897/phytokeys.197.73596</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Ohi-Toma, T. &amp; Murata, J. (2016) Nomenclature of </span><span lang="en-GB"><em>Isotrema</em></span><span lang="en-GB">, </span><span lang="en-GB"><em>Siphisia</em></span><span lang="en-GB">, and </span><span lang="en-GB"><em>Endodeca</em></span><span lang="en-GB">, and their related infrageneric taxa of </span><span lang="en-GB"><em>Aristolochia</em></span><span lang="en-GB"> (Aristolochiaceae). </span><span lang="en-GB"><em>Taxon</em></span><span lang="en-GB"> 61: 152–157. https://doi.org/10.12705/651.11</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Ohi-Toma, T., Sugawara, T., Murata, H., Wanke, S., Neinhuis, C. &amp; Murata, J. (2006) Molecular phylogeny of </span><span lang="en-GB"><em>Aristolochia </em></span><span lang="en-GB">sensu lato (Aristolochiaceae) based on sequences of </span><span lang="en-GB"><em>rbc</em></span><span lang="en-GB">L, </span><span lang="en-GB"><em>mat</em></span><span lang="en-GB">K, and </span><span lang="en-GB"><em>phy</em></span><span lang="en-GB">A genes, with special reference to differentiation of chromosome numbers. </span><span lang="en-GB"><em>Systematic Botany</em></span><span lang="en-GB"> 31 (3): 481–492. https://doi.org/10.1043/05-38.1</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Phuphathanaphong, L. (1987) Aristolochiaceae. </span><span lang="en-GB"><em>In</em></span><span lang="en-GB">: Smitinand, T. &amp; Larsen, K. (eds.) </span><span lang="en-GB"><em>Flora of Thailand</em></span><span lang="en-GB">, vol. 5 (1). The Chutima Press, Bangkok, pp. 1–31.</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Pierre, J.B.L. (1880)&nbsp;</span><span lang="en-GB"><em>Flore Forestiere de la Cochinchine</em></span><span lang="en-GB">. Paris: Octave Doin.</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="it-IT">Schmidt, O.C. (1935) Aristolochiaceae. </span><span lang="it-IT"><em>In</em></span><span lang="it-IT">: Engler, A. &amp; Prantl, K. (Eds.) </span><span lang="de-DE"><em>Die natürlichen Pflanzenfamilien</em></span><span lang="de-DE">, vol. 2,16B. Engelmann, Leipzig, pp. 204</span><span lang="en-GB">–242.</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Thiers, B.M. (2022 [continuously updated]) </span><span lang="en-GB"><em>Index Herbariorum: A global directory of public herbaria and associated staff</em></span><span lang="en-GB">. New York Botanical Garden’s Virtual Herbarium. Available from: http://sweetgum.nybg.org/science/ih/ (accessed 28 December 2020)</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Wang, J., Ya, J.D., Liu, C., Liu, G., Cao, F., Ma, J.S. &amp; Zhu, X.X. (2020) Taxonomic studies on the genus </span><span lang="en-GB"><em>Isotrema </em></span><span lang="it-IT">(Aristolochiaceae) from China: II. </span><span lang="it-IT"><em>I. brevilimbum </em></span><span lang="en-GB">(Aristolochiaceae), a new species from Guizhou, China. </span><span lang="en-GB"><em>PhytoKeys </em></span><span lang="en-GB">152: 15–25. https://doi.org/10.3897/phytokeys.152.51760</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Wanke, S., González, F. &amp; Neinhuis, C. (2006) Systematics of pipevines: Combining morphological and fast-evolving molecular characters to investigate the relationships within subfamily Aristolochioideae (Aristolochiaceae). </span><span lang="en-GB"><em>International Journal of Plant Sciences </em></span><span lang="en-GB">167: 1215–1227. https://doi.org/10.1086/508024</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Wei, Y.G. (2018) The distribution and conservation status of native plants in Guangxi, China. China Forestry Publishing House, Beijing, 876pp.</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Zhu, X.X., Li, X.Q., Liao, S., Li, G. &amp; Ma, J. (2019) The taxonomic revision of Asian </span><span lang="it-IT"><em>Aristolochia </em></span><span lang="en-GB">(Aristolochiaceae) V: two new species from Yunnan, China. </span><span lang="en-GB"><em>In</em></span><span lang="en-GB">: Cai, J., Yu, W.B., Zhang, T. &amp; Li, D.Z. (Eds.) Revealing the plant diversity in China’s biodiversity hotspots. </span><span lang="en-GB"><em>PhytoKeys </em></span><span lang="en-GB">130: 93–106. https://doi.org/10.3897/phytokeys.130.33933</span></span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Zhu, X.X., Shen, B., Sun, Z.P., Chen, B., Liao, S. &amp; Ma, J.S. (2018) Two new species of </span><span lang="it-IT"><em>Aristolochia </em></span><span lang="it-IT">(Aristolochiaceae) from Yunnan, China. </span><span lang="en-GB"><em>Novon </em></span><span lang="en-GB">26 (3): 298–306. https://doi.org/10.3417/2018066</span></span></span></span></p>