Research Article |
Corresponding author: Jun Wen ( wenj@si.edu ) Academic editor: Hanno Schaefer
© 2014 Jun Wen, John Boggan, Ze-Long Nie.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Wen J, Boggan J, Nie Z (2014) Synopsis of Nekemias Raf., a segregate genus from Ampelopsis Michx. (Vitaceae) disjunct between eastern/southeastern Asia and eastern North America, with ten new combinations. PhytoKeys 42: 11-19. https://doi.org/10.3897/phytokeys.42.7704
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The genus Nekemias (Vitaceae) was first recognized by Rafinesque in 1838. It has been treated as a synonym of Ampelopsis Michx. Recent phylogenetic studies suggest that Ampelopsis as traditionally delimited is paraphyletic. To maintain the monophyly of each of the genera of Vitaceae, we herein segregate the Ampelopsis sect. Leeaceifoliae lineage from Ampelopsis and recognize these taxa in Nekemias Raf., which has a disjunct distribution in eastern to southeastern Asia and eastern North America. Nomenclatural changes are made for nine species and one variety: Nekemias arborea (L.) J. Wen & Boggan, N. cantoniensis (Hook. & Arn.) J. Wen & Z.L. Nie, N. celebica (Suess.) J. Wen & Boggan, N. chaffanjonii (H. Lév. & Van.) J. Wen & Z.L. Nie, N. gongshanensis (C.L. Li) J. Wen & Z.L. Nie, N. grossedentata (Hand.-Mazz.) J. Wen & Z.L. Nie, N. hypoglauca (Hance) J. Wen & Z.L. Nie, N. megalophylla (Diels & Gilg) J. Wen & Z.L. Nie, N. megalophylla var. jiangxiensis (W.T. Wang) J. Wen & Z.L. Nie, and N. rubifolia (Wall.) J. Wen & Z.L. Nie. A taxonomic key is provided for the genus to facilitate identification.
Ampelopsis, Asia, eastern North America, Nekemias , Vitaceae
Ampelopsis Michx. (Vitaceae) is one of the 15 recognized genera in Vitaceae with about 25 species (
Within Vitaceae, five or six main clades are well supported based on analysis of molecular sequence data with the Ampelopsis-Rhoicissus-Cissus striata clade as one of these major clades of Vitaceae (
Ampelopsis Michx., pro parte
Branchlets with prominent lenticels. Pith white, continuous through nodes. Tendrils leaf-opposed, mostly bifurcate to sometimes trifurcate, and lacking adhesive discs. Leaves alternate, petiolate, stipulate, pinnately to ternately bipinnately or sometimes tripinnately compound. Inflorescences bifurcately compound cymes, long peduncled, leaf-opposite. Flowers pedicellate, mostly bisexual; calyx saucer-like; corolla of 5 thick petals; stamens 5, opposite to petals; disc adnate to the base of the ovary; ovary 2-locular, style short, conical, stigma rounded. Fruit a berry, globose or subglobose, purple, blue or black, 1-4 seeded. Seeds obovoid.
Nekemias bipinnata (Michx.) Raf. [= Nekemias arborea (L.) J. Wen & Boggan].
Nine species with eight occurring in warm temperate to tropical areas of eastern and southeastern Asia (
Below we provide a taxonomic synopsis for the genus.
Vitis arborea L., Sp. Pl. 1: 203. 1753. [Basionym]
Ampelopsis bipinnata Michx., Fl. Bor.-Amer. 1: 160. 1803, nom. illeg.
Cissus stans Pers., Syn. Pl. 1: 143. 1805, nom. illeg.
Cissus bipinnata (Michx.) Nutt., Gen. N. Amer. Pl. 1: 144. 1818, nom. illeg.
Nekemias bipinnata (Michx.) Raf., Sylva Tellur. 87. 1838, nom. illeg.
Vitis bipinnata (Michx.) Torrey & A. Gray, Fl. N. Amer. 1: 243. 1838, nom. illeg.
Cissus arborea (L.) Des Moulins in Durand, Actes Soc. Linn. Bordeaux 24: 156. 1862.
Ampelopsis arborea (L.) Koehne, Deutsch. Dendrol. 400. 1893.
Ampelopsis arborea (L.) Rusby, Mem. Torrey Bot. Club 5: 221. 1894, comb. superfl.
USA (Alabama, Arkansas, Florida, Georgia, Illinois, Indiana, Kentucky, Louisiana, Mississippi, Missouri, New Mexico, North Carolina, Ohio, Oklahoma, South Carolina, Tennessee, Texas, Virginia and West Virginia) and the Caribbean.
Images of representative species of Nekemias Raf. A–B Nekemias arborea (L.) J. Wen & Boggan, voucher specimen: J. Wen 12005 (US), collected from Montgomery Co., Texas, USA C–D N. cantoniensis (Hook. & Arn.) J. Wen & Z.L. Nie, voucher specimen: J. Wen 10613 (US), collected from Xichou Xian, Yunnan province, China E–F N. celebica (Suess.) J. Wen & Boggan, voucher specimen: J. Wen 10242 (US), collected from SE Sulawesi, Indonesia.
Cissus cantoniensis Hook. & Arn., Bot. Beech. Voy.: 175. 1833. [Basionym]
Cissus diversifolia Walp., Nov. Actorum Acad. Caes. Leop.-Carol. Nat. Cur. 19 (Suppl. 1): 314. 1843, nom. illeg., non DC. 1824.
Ampelopsis cantoniensis (Hook. & Arn.) K. Koch, Hort. Dendrol. 48: 11. 1853.
Vitis leeoides Maxim., Mel. Biol. Acad. Sci. St. Petersb. 9: 148. 1873.
Vitis cantoniensis (Hook. & Arn.) Seem., Bot. Voy. Herald: 370. 1875.
Ampelopsis cantoniensis (Hook. & Arn.) Planch., Monogr. Phan. 5: 460. 1887, comb. superfl.
Ampelopsis cantoniensis var. harmandii Planch., Monogr. Phan. 5: 460. 1887.
Ampelopsis leeoides (Maxim.) Planch. [epithet published in error as “lecoides” by Planchon in 1887], Monogr. Phan. 5: 462. 1887.
Ampelopsis loureiroi Hort. Mazel. ex Planch., Monogr. Phan. 5: 461. 1887, nom. nud. pro syn.
Vitis multijugata H. Lév. & Vaniot, Bull. Soc. Agric. Sci. Arts Sarthe 40: 41. 1905.
Leea theifera H. Lév., Repert. Spec. Nov. Regni Veg. 8: 58. 1910.
Ampelopsis annamensis Gagnep., Bull. Soc. Bot. France 92: 166. 1946.
Ampelopsis cantoniensis var. leeoides (Maxim.) F.Y. Lu [published in error as “leecoides”; changed to “lecoides” in Index Kewensis], Fl. Taiwan 3: 667. 1977, nom. invalid.
China (Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hong Kong, Hubei, Hunan, Taiwan, Xizang, Yunnan and Zhejiang), India, Japan (including the Ryukyu Islands), Vietnam, Laos, Malaysia (peninsular), and Indonesia (Java).
Ampelopsis celebica Suess., Repert. Spec. Nov. Regni Veg. 49: 14. 1940. [Basionym]
Indonesia (Sulawesi).
Vitis chaffanjonii H. Lév. & Van., Bull. Soc. Agric. Sci. Arts Sarthe 40: 37. 1905. [Basionym]
Leea dielsii H. Lév., Repert. Spec. Nov. Regni Veg. 8: 58. 1910.
Meliosma cavaleriei H. Lév., Repert. Spec. Nov. Regni Veg. 9: 457. 1911.
Ampelopsis watsoniana E.H. Wilson, J. Roy. Hort. Soc. 42: 37. 1916, nom. nud.
Vitis watsoniana (E.H. Wilson) Bean, Trees & Shrubs Brit. Isles 2: 673. 1921.
Ampelopsis chaffanjonii (H. Lév. & Van.) Rehder, J. Arnold Arbor. 15: 25. 1934.
China (Anhui, Chongqing, Guangxi, Guizhou, Hubei, Hunan, Jiangxi, Sichuan and Yunnan).
Ampelopsis gongshanensis C.L. Li, Chinese J. Appl. Environ. Biol. 2(1): 48. 1996. [Basionym]
China (Yunnan).
Ampelopsis cantoniensis var. grossedentata Hand.-Mazz., Sitzungsber. Kaiserl. Akad. Wiss., Math.-Naturwiss. Cl., Abt. 1, 59: 105. 1877. [Basionym]
Ampelopsis grossedentata (Hand.-Mazz.) W.T. Wang, Acta Phytotax. Sin. 17(3): 79. 1979.
China (Fujian, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangxi and Yunnan).
Hedera hypoglauca Hance, Ann. Bot. Syst. 2: 724. 1852. [Basionym]
Ampelopsis hypoglauca (Hance) C.L. Li, Chinese J. Appl. Environ. Biol. 2(1): 48. 1996.
China (Fujian, Guangdong, Hong Kong and Jiangxi).
Ampelopsis megalophylla Diels & Gilg, Bot. Jahrb. Syst. 29: 466. 1900. [Basionym]
Vitaeda megalophylla (Diels & Gilg) Börner, Abh. Nat. Ver. Bremen 21: 280. 1913.
China (Chongqing, Gansu, Guizhou, Hubei, Shaanxi, Sichuan and Yunnan).
Ampelopsis jiangxiensis W.T. Wang, Bull. Bot. Res. North-East. Forest. Inst. 1(1–2): 170. 1981. [Basionym]
Ampelopsis megalophylla var. jiangxiensis (W.T. Wang) C.L. Li, Chinese J. Appl. Environ. Biol. 2(1): 48. 1996.
China (Jiangxi).
Vitis rubifolia Wall., Fl. Ind., ed. Carey & Wall., 2: 480. 1824. [Basionym]
Ampelopsis rubifolia (Wall.) Planch., Monogr. Phan. 5: 463. 1887.
Ampelopsis megalophylla var. puberula W.T. Wang, Acta Phytotax. Sin. 17(3): 79, 90. 1979.
China (Guangxi, Guizhou, Hunan, Jiangxi and Sichuan), and India.
1 | Leaves abaxially strongly glaucous | 2 |
1 | Leaves green on both surfaces | 3 |
2 | Lower leaves pinnately compound, leaflet blades 7–15 × 3–7 cm | N. chaffanjonii |
2 | Lower leaves bipinnately compound, leaflet blades 2.5–6 × 1–3.5 cm | N. hypoglauca |
3 | Leaves pinnately compound | 4 |
3 | Leaves bipinnately, ternately bipinnately to tripinnately compound | 5 |
4 | Leaflets 3.5–14 × 2–6.5 cm, margin 5–15-toothed, abaxially densely ferruginous pilose; berries 8–15 mm in diameter | N. rubifolia |
4 | Leaflets 3–6 × 0.5–3 cm, margin entire or with 1 to several inconspicuous teeth, midvein abaxially sparsely pilose; berries 5–7 mm in diameter | N. gongshanensis |
5 | Tendril trifurcate; leaflets 4–12 × 2–6 cm | N. megalophylla |
5 | Tendril bifurcate; leaflets 1–5 × 0.5–2.5 cm | 6 |
6 | Leaflet margin with 2–4 large coarse teeth; from North America or the Caribbean | N. arborea |
6 | Leaflet margin serrate with 5–15 teeth on each side; from Asia | 7 |
7 | Leaflet margin coarsely serrate, central leaflet ovate-elliptical | N. grossedentata |
7 | Leaflet margin ± undulate, central leaflet obovate or ovate | 8 |
8 | Leaves and inflorescences pilose to glabrescent | N. cantoniensis |
8 | Leaves and inflorescences pubescent to densely so | N. celebica |
This study was supported by NSF Award number DEB 0743474 to S.R. Manchester and J. Wen, the Smithsonian Endowment Grant Program, and the Small Grants Program of the National Museum of Natural History of the Smithsonian Institution. Laboratory work was done at and partially supported by the Laboratories of Analytical Biology of the National Museum of Natural History, Smithsonian Institution. We thank Pedro Acevedo and Larry Dorr for advice on nomenclature, Larry Dorr and Marc Appelhans for translating references, Stefanie Ickert-Bond and an anonymous reviewer for their constructive suggestions, and Sue Lutz for assistance with preparing the figure.