Persicarioipollis frequens (Sah & Dutta) Doweld, 2017

Doweld, Alexander B., 2017, New names in Fallopia, Persicarioipollis, Polygonum and Reynoutria (Polygonaceae), living and fossil, Phytotaxa 308 (1), pp. 66-79 : 72

publication ID	https://doi.org/10.11646/phytotaxa.308.1.5
persistent identifier	https://treatment.plazi.org/id/2E349B25-FFBE-2273-FF61-FD657A6ACA00
treatment provided by	Felipe (2024-09-04 21:00:29, last updated 2024-09-04 21:11:39)
scientific name	Persicarioipollis frequens (Sah & Dutta) Doweld
status	comb. nov.

Treatment

13. Persicarioipollis frequens (Sah & Dutta) Doweld , comb. nov.

Basionym:— Polygonacidites frequens Sah & Dutta (1968: 193) .

Type:— INDIA. Assam: Dhekiajuli beds, Digboi Oilfield (holotype slide 3/6, Sample 2792, Birbal Sahni Institute of Palaeobotany, Lucknow, India)–figured by Sah & Dutta 1968: pl. 2, fig. 22.

Stratigraphy:— Mio-Pliocene (Dhekiajuli beds).

Status:— Sporae dispersae (pollen).

IFPNI registration lsid:— 1691B8A2-F4B3-44C6-A1E2-AC2FD984240D

Note:— Sah & Dutta (1968: 192) established monotypic fossil genus Polygonacidites and mentioned that pollen of extant Polygonum glabrum Willdenow (1799: 447) [≡ Persicaria glabra (Willdenow) Gómez (1896: 278) ] and Polygonum strigosum Brown (1910: 420) [≡ Persicaria strigosa (Brown) Gross (1913: 308) ] exhibit comparable characters with their fossil-species ( Polygonacidites frequens Sah & Dutta 1968: 193 ), which was discovered in the younger Mio-Pliocene sediments of the Upper Assam ( India). However, pollen of P. glabra and P. strigosa are larger than pollens displayed by P. frequens , and the microfossils should be better attributed to some extinct Persicaria -like species ( Mandal & Kumar 2000: 199). Thus, upon priority, P. frequens is transferred into earlier established fossil pollen genus Persicarioipollis , serving a formal repository of fossil pollen taxa related to extant genus Persicaria . Therefore, Polygonacidites Sah & Dutta (1968: 192) is treated as heterotypic synonym of Persicarioipollis Krutzsch (1962: 282) .

References

Gomez de la Maza [y Jimenez], M. (1896) Catalogo de las Perigoniadas Cubanas, espontaneas y cultivadas. Anales del Instituto de Segunda Ensenanza de la Habana 2: 277 - 280.

Gross, H. (1913) Beitrage zur Kenntnis der Polygonaceen. Botanische Jahrbucher fur Systematik, Pflanzengeschichte und Pflanzengeographie 49: 234 - 339. Available from: http: // biodiversitylibrary. org / page / 219055 (accessed 1 June 2017)

Krutzsch, W. (1962) Stratigraphisch bzw. botanisch wichtig neue Sporen- und Pollenformen aus dem deutschen Tertiar. Geologie 11: 265 - 307.

Mandal, J. & Kumar, M. (2000) Stratigraphic significance of some angiosperm pollen from the Tinali Oilfield, Upper Assam, India. Palaeobotanist 49: 197 - 207.

Sah, S. C. D. & Dutta, S. K. (1968) Palynostratigraphy of the Tertiary sedimentary formations of Assam. Palaeobotanist 16: 177 - 195. Available from: http: // hdl. handle. net / 123456789 / 479 (accessed 1 June 2017)

Willdenow, C. L. (1799) Caroli a Linne Species plantarum exhibente plantas rite cognitas ad genera relates cum differentiis specificis, nominibus trivialibus synonymis selectis, locis natalibus secundum systema sexuale digestas, ed. 4, post Reichardianum quinta adjectis vegetabilibus hucusque cognitis curante Carolo Ludovico Willdenow, vol. 2. Pars 1. impensis G. C. Nauk, Berolini [Berlin], 823 pp. http: // doi. org / 10.5962 / bhl. title. 727