New genus and species, Quangnamia syncarpa (Hamamelidaceae), from central Vietnam
UDC 582.725:581.96(597)
Keywords:
Altingiaceae, central Truong Son Range, endemism, plant diversity, plant taxonomy, Quang Nam Province
Abstract
A new monotypic genus, Quangnamia (Hamamelidaceae), and its species, Q. syncarpa, discovered in central Vietnam are described and illustrated. Quangnamia syncarpa is evergreen treelet or tree with non-stellate indumentum on vegetative and floral parts, glabrous twigs and leaves, axillary inflorescences in form of spadix-like many-flowered heads, hermaphrodite, 5(6)-merous flowers, petals straight in bud, in open flowers greenish yellow, linear-lorate to linear, ribbonlike with straight and entire margins, lacking staminodes, 1-sporangiate anther thecae dehisced by a longitudinal slit, gynoecium syncarpous of two completely fused carpels, with inferior 2-locular ovary, each locule with 2 ovules placed on axial placenta, irregularly globular syncarpous infructescence consisting of few- to many 2-carpellate capsules, dorsoventrally flattened, broadly obovoid, entire or slightly retuse at apex, opening septicidally like bivalve shell, with two seed per carpel, and wingless seed. Morphological comparison of Quangnamia with related genera, and notes on the habitat, phenology, and conservation status of the new plant are provided and discussed.
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References
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Bogle A. L. 1970. Floral morphology and vascular anatomy of the Hamamelidaceae: the apetalous genera of Hamamelidoideae. J. Arnold Arb. 51: 310–366.
Bogle A. L. 1986. The floral morphology and vascular anatomy of the Hamamelidaceae: subfamily Liquidambaroideae. Ann. Miss. Bot. Gard. 73 (2): 325–347.
Brown R. 1818. Appendix–B. Containing characters and descriptions of three new species of plants. In: G. F. Abel (ed.) Narrative of a Journey in the Interior of China. London: Longman et al. Pp. 374–379. URL: https://www.biodiversitylibrary.org/item/192557#page/9/mode/1up
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Chang H. T. 1962. Semiliquidambar, novum Hamamelidacearum genus sinicum. Acta Sci. Nat. Univ. Sunyatsenia 1: 34–44.
Chang H. T. 1973. A revision of the hamamelidaceous flora of China. Bull. Sunyatsen Univ. 1: 54–71.
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Li J. H. 1997. Systematics of the Hamamelidaceae based on morphological and molecular evidence. Durham: University of New Hampshire Durham. 291 pp.
Linnaeus C. 1753. Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, tomus II. Holmiae: Impensis Laurentii Salvii. Pp. 561–1200. DOI: 10.5962/bhl.title.669
Maslova N. P., Kodrul T. M., Song Y. S., Volkova L. D., Jin J. H. 2015. Liquidambar maomingensis sp. nov. (Altingiaceae) from the Late Eocene of South China. Amer. J. Bot. 102: 1356–1370.
Maximowicz C. J. 1866. Diagnoses breves plantarum novarum Japonicae et Mandshuriae. Bull. de l’Acad. Impér. Sci. St.-Pétersbourg 3 (10): 485–490. https://www.biodiversitylibrary.org/page/33836757#page/569/mode/1up
Noronha F. 1790. Altingia excelsa Malaice et Javanice, Rasamala lignum papuanum Rumphii Herbar. Amboin. Verhandelingen Bat. Genootschap Kunst. Wetenschap. 5 (art. 2): 1–20. URL: https://www.biodiversitylibrary.org/page/41198080#page/125/mode/1up
Persoon C. H. 1807. Synopsis plantarum, seu enchiridium botanicum, complectens enumerationem systematicam specierum hucusque cognitarum. Vol. 2. Parisiis: Typografia J.-L. Scherff. 656 pp. DOI: 10.5962/bhl.title.638
Pigg K. B., Ickert-Bond S. M., Wen J. 2004. Anatomically preserved Liquidambar (Altingiaceae) from the Middle Miocene of Yakima Canyon, Washingon State, USA, and its biogeographic implications. Amer. J. Bot. 91: 499–509.
POWO [2024]. Plants of the World Online. Kew: The Royal Botanic Gardens. URL: http://www.plantsoftheworldonline.org (Accessed 20 August 2024).
Prain D. 1914. Hamamelis vernalis, South-eastern United State. Curtis’s Bot. Mag. 140, 4(10): tab. 8573. https://www.biodiversitylibrary.org/item/14266#page/151/mode/1up
Scharfstein A. R., Stockey R. A., Rothwell G. W. 2020. Evolution and phylogeny of Altingiaceae: anatomically preserved infructescences from Late Cretaceous deposits of Vancouver Island, British Columbia, Canada. International J. Pl. Sci. 181: 452–463.
Takhsch A. 1890. Über die anatomischen Verhältnisse der Hamamelidaceae mit Rücksicht auf ihre systematische Gruppierung. In: A. Engler (ed.). Bot. Jahrb. Syst., Pflanzengeschichte und Pflanzengeographie 11. Leipzig: Verlag von Vilhelm Engelmann. Pp. 347–395. URL: https://www.biodiversitylibrary.org/item/669#page/355/mode/1up
Takhtajan A. 2009. Flowering Plants. Dordrecht: Springer. 871 pp.
Thiers B. [2024]. Index Herbariorum: A global directory of public herbaria and associated staff. In: New York Botanical Garden’s Virtual Herbarium. URL: http://sweetgum.nybg.org/science/ih/ (Accessed 24 February 2024).
Xu S. L., Maslova N., Kodrul T., Zdravchev N., Kachkina V., Liu X. Y., Wu X. K., Jin J. H. 2024. Structurally preserved Liquidambar infructescences, associated pollen, and leaves from the Late Oligocene of the Nanning Basin, South China. Plants 13, 275: 17. DOI: 10.3390/plants13020275
Zhang Z. Y., Zhang H. D., Endress P. K. 2003. Hamamelidaceae. In: Flora of China. Vol. 9. Beijing and St. Louis: Science Press and Missouri Botanical Garden. Pp. 18–42.
Zhou Z. K., Crepet W. L., Nixon K. C. 2001. The earliest fossil evidence of the Hamamelidaceae: Late Cretaceous (Turonian) inflorescences and fruits of Altingioideae. Amer. J. Bot. 88: 753–766.
Averyanov L. V., Endress P. K., Quang B. H., Nguyen K. S., Nguyen D. V. 2017. Disanthus ovatifolius (Hamamelidaceae), a new species from northwestern Vietnam. Phytotaxa 308 (1): 104–110. DOI: 10.11646/phytotaxa.308.1.9
Bamps P. 1951. Hamamelidaceae. In: R. Boutique. Flore du Congo Belge et du Ruanda-Urundi. Vol. 2. Bruxelles: Institut national pour l'étude agronomique du Congo belge (INEAC). Pp. 581–583. URL: https://www.floredafriquecentrale.be/#/en/genus/G50379
Beentje H. 2016. The Kew Plant Glossary, an illustrated dictionary of plant terms, 2 ed. London: Royal Botanic Gardens, Kew. 184 pp.
Bogle A. L. 1970. Floral morphology and vascular anatomy of the Hamamelidaceae: the apetalous genera of Hamamelidoideae. J. Arnold Arb. 51: 310–366.
Bogle A. L. 1986. The floral morphology and vascular anatomy of the Hamamelidaceae: subfamily Liquidambaroideae. Ann. Miss. Bot. Gard. 73 (2): 325–347.
Brown R. 1818. Appendix–B. Containing characters and descriptions of three new species of plants. In: G. F. Abel (ed.) Narrative of a Journey in the Interior of China. London: Longman et al. Pp. 374–379. URL: https://www.biodiversitylibrary.org/item/192557#page/9/mode/1up
Brown R. W. 1946. Alterations in some fossil and living floras. J. Washington Ac. Sci. 36: 344–355. https://www.biodiversitylibrary.org/page/39698178#page/400/mode/1up
Champion J. G. 1850. Rhodoleia. Curtis’s Bot. Mag. 76: t. 4509. URL: https://www.biodiversitylibrary.org/page/466901#page/77/mode/1up
Chang H. T. 1948. Additions to the hamamelidaceous flora of China. Sunyatsenia 7 (1–2): 63–74.
Chang H. T. 1962. Semiliquidambar, novum Hamamelidacearum genus sinicum. Acta Sci. Nat. Univ. Sunyatsenia 1: 34–44.
Chang H. T. 1973. A revision of the hamamelidaceous flora of China. Bull. Sunyatsen Univ. 1: 54–71.
Endress P. K. 1989. A suprageneric taxonomic classification of the Hamamelidaceae. Taxon 38 (3): 371–376.
Endress P. K. 1993. Hamamelidaceae. In: K. Kubitzki (ed.). The families and genera of vascular plants. Vol. 2. New York: Springer-Verlag. Pp. 322–331.
GBIF Secretariat [2023]. Global Biodiversity Information Facility. Hamamelidaceae in GBIF Backbone Taxonomy. URL: https://www.gbif.org/species/2500 (Accessed on 26 August 2024).
Harms H. 1930. Hamamelidaceae. In: A. Engler, K. Prantl (eds.). Die nattirlichen Pflanzenfamilien. Vol. 18a. Leipzig: Engelmann. Pp. 303– 343.
Горянинов П. Ф. Oснования ботаники. СПб.: Санкт-Петербургская медико-хирургическия Академия. Типография штаба Отдельного корпуса внутренней стражи, 1841. 376 c.
Ickert-Bond S. M., Wen J. 2013. A taxonomic synopsis of Altingiaceae with nine new combinations. PhytoKeys 31: 21–61. URL: DOI: 10.3897/phytokeys.31.6251
IUCN Standards and Petitions Committee [2024]. Guidelines for Using the IUCN Red List Categories and Criteria. Version 16 Prepared by the Standards and Petitions Committee. 122 pp. URL: https://nc.iucnredlist.org/redlist/content/attachment_files/RedListGuidelines.pdf (Accessed 22 July 2024).
Jia L. B., Wang S. Y., Hu J. J., Miao K., Huang Y. J., Ji Y. H. 2024. Plastid phylogenomics and fossil evidence provide new insights into the evolutionary complexity of the ‘woody clade’ in Saxifragales. BMC Plant Biology 24, art. 277: 12 pp. DOI: 10.1186/s12870-024-04917-9
Lecomte H. 1924. Une Hamamélidacée nouvelle d'Indochine. Bulletin du Muséum d'Histoire Naturelle 30 (6): 503–507. URL: https://www.biodiversitylibrary.org/item/213222#page/468/mode/1up
Li J. H. 1997. Systematics of the Hamamelidaceae based on morphological and molecular evidence. Durham: University of New Hampshire Durham. 291 pp.
Linnaeus C. 1753. Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, tomus II. Holmiae: Impensis Laurentii Salvii. Pp. 561–1200. DOI: 10.5962/bhl.title.669
Maslova N. P., Kodrul T. M., Song Y. S., Volkova L. D., Jin J. H. 2015. Liquidambar maomingensis sp. nov. (Altingiaceae) from the Late Eocene of South China. Amer. J. Bot. 102: 1356–1370.
Maximowicz C. J. 1866. Diagnoses breves plantarum novarum Japonicae et Mandshuriae. Bull. de l’Acad. Impér. Sci. St.-Pétersbourg 3 (10): 485–490. https://www.biodiversitylibrary.org/page/33836757#page/569/mode/1up
Noronha F. 1790. Altingia excelsa Malaice et Javanice, Rasamala lignum papuanum Rumphii Herbar. Amboin. Verhandelingen Bat. Genootschap Kunst. Wetenschap. 5 (art. 2): 1–20. URL: https://www.biodiversitylibrary.org/page/41198080#page/125/mode/1up
Persoon C. H. 1807. Synopsis plantarum, seu enchiridium botanicum, complectens enumerationem systematicam specierum hucusque cognitarum. Vol. 2. Parisiis: Typografia J.-L. Scherff. 656 pp. DOI: 10.5962/bhl.title.638
Pigg K. B., Ickert-Bond S. M., Wen J. 2004. Anatomically preserved Liquidambar (Altingiaceae) from the Middle Miocene of Yakima Canyon, Washingon State, USA, and its biogeographic implications. Amer. J. Bot. 91: 499–509.
POWO [2024]. Plants of the World Online. Kew: The Royal Botanic Gardens. URL: http://www.plantsoftheworldonline.org (Accessed 20 August 2024).
Prain D. 1914. Hamamelis vernalis, South-eastern United State. Curtis’s Bot. Mag. 140, 4(10): tab. 8573. https://www.biodiversitylibrary.org/item/14266#page/151/mode/1up
Scharfstein A. R., Stockey R. A., Rothwell G. W. 2020. Evolution and phylogeny of Altingiaceae: anatomically preserved infructescences from Late Cretaceous deposits of Vancouver Island, British Columbia, Canada. International J. Pl. Sci. 181: 452–463.
Takhsch A. 1890. Über die anatomischen Verhältnisse der Hamamelidaceae mit Rücksicht auf ihre systematische Gruppierung. In: A. Engler (ed.). Bot. Jahrb. Syst., Pflanzengeschichte und Pflanzengeographie 11. Leipzig: Verlag von Vilhelm Engelmann. Pp. 347–395. URL: https://www.biodiversitylibrary.org/item/669#page/355/mode/1up
Takhtajan A. 2009. Flowering Plants. Dordrecht: Springer. 871 pp.
Thiers B. [2024]. Index Herbariorum: A global directory of public herbaria and associated staff. In: New York Botanical Garden’s Virtual Herbarium. URL: http://sweetgum.nybg.org/science/ih/ (Accessed 24 February 2024).
Xu S. L., Maslova N., Kodrul T., Zdravchev N., Kachkina V., Liu X. Y., Wu X. K., Jin J. H. 2024. Structurally preserved Liquidambar infructescences, associated pollen, and leaves from the Late Oligocene of the Nanning Basin, South China. Plants 13, 275: 17. DOI: 10.3390/plants13020275
Zhang Z. Y., Zhang H. D., Endress P. K. 2003. Hamamelidaceae. In: Flora of China. Vol. 9. Beijing and St. Louis: Science Press and Missouri Botanical Garden. Pp. 18–42.
Zhou Z. K., Crepet W. L., Nixon K. C. 2001. The earliest fossil evidence of the Hamamelidaceae: Late Cretaceous (Turonian) inflorescences and fruits of Altingioideae. Amer. J. Bot. 88: 753–766.
Published
2024-11-10
How to Cite
Nguyen K. S., Averyanov L. V., Lin C. W., Liu G. Q., Truong H. H., Pham V. T., Maisak T. V., Averyanova A. L. New genus and species, Quangnamia syncarpa (Hamamelidaceae), from central Vietnam // Turczaninowia, 2024. Vol. 27, № 3. P. 159–176 DOI: 10.14258/turczaninowia.27.3.15. URL: http://turczaninowia.asu.ru/article/view/16102.
Section
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