Fallopia conwentzii Doweld, 2017

publication ID	https://doi.org/ 10.11646/phytotaxa.308.1.5
persistent identifier	https://treatment.plazi.org/id/2E349B25-FFBA-2277-FF61-FBD67877C909
treatment provided by	Felipe
scientific name	Fallopia conwentzii Doweld
status	nom. nov.

2. Fallopia conwentzii Doweld , nom. nov. pro Polygonum convolvuloides Conwentz (1886: 48) non Brügger (1886a: 102), nom. illeg. (Art. 53.1) ≡ Fallopia convolvuloides (Conwentz) Arbuzova (2006: 28) , nom. illeg. non ( Degen & al. 1924: 78) Holub (1971: 176) (Art. 53.1).

Type:—not designated.

Eponymy:— The specific epithet is dedicated to Hugo Wilhelm Conwentz (1855—1922), famous German (Prussian) palaeobotanist.

Stratigraphy:— Upper Eocene.

Status:— Fruits.

IFPNI registration lsid:— C666F1A2-420E-4FE6-A728-90FE2C704338

Note:— Although the fossil name Polygonum convolvuloides Conwentz is correct in the genus Polygonum , since it has a priority over extant P. convolvuloides Brügger (1886a: 102) [see details below], its combination in Fallopia , F. convolvuloides (Conwentz) Arbuzova (2006: 28) , was illegitimate due to the existence of the earlier extant Fallopia ×convolvuloides ( Degen & al. 1924: 78) Holub (1971: 176). Therefore, a replacement name is necessary for the fossil P. convolvuloides Conwentz when it is treated as Fallopia . Original fossil materials of Conwentz were possibly destroyed in World War II, new materials were not found.