Urochloa eminii (Mez) Davidse

Oulo, M., Zon, A. P. M. van der & Sosef, M. S. M., 2023, New combinations in and typification of tropical African species of Urochloa (incl. Brachiaria) (Poaceae), Blumea 68 (2), pp. 73-84 : 77

Urochloa eminii (Mez) Davidse

Urochloa eminii (Mez) Davidse in Davidse & Brako (1993) 1258. — Panicum eminii Mez (1904) 135. — Brachiaria eminii (Mez) Robyns (1932) 176. — Lectotype (designated by Robyns 1932): Stuhlmann 4633 (lecto B, lost?; isolecto BR [BR0000008756312], K [K000282133]), Tanzania, Mwanza [Muansa], May 1892.

Brachiaria decumbens Stapf (1919) 528. — Urochloa decumbens (Stapf) R.D. Webster (1987) 234. — Lectotype (designated by Sosef 2016): Dümmer 1070 (lecto K [K000282130]; isolecto BM [BM000923187], BOL [BOL139359], BR [BR0000008639684], PRE [PRE0664142-0]), Uganda, Kampala, Mengo Distr., Mpumu, Oct. 1914.

Brachiaria ruziziensis R.Germ. & C.M.Evrard (1953) 373. — Urochloa ruziziensis (R.Germ. & C.M.Evrard) Crins (1991) 269. — Type: Germain 6214 (holo BR [ BR0000008756558 ]; iso EA [ EA000000400 ], YBI [ YBI143266063 ]), Democratic Republic of the Congo, plaine de la Ruzizi, Tsimuka, Feb. 1950.

Distribution — Native to the most of tropical Central and East Africa, as well as in parts of West Africa ( Ivory Coast, Togo, Benin, Burkina Faso); introduced in Madagascar, most of South America and part of Central America, South-East Asia and Australia.

Nomenclatural notes — The designation of Stuhlmann 4633 as the lectotype of Panicum eminii by Robyns (1932) was ef- fectuated by adding the word ‘type’ behind the citation of the specimen at B. According to Art. 9.10 of the ICN ( Turland et al. 2018), this is to be treated as an error to be corrected. The holotype specimen at B may have been destroyed during the WWII fire, but since we could not be sure, we refrained from designating one of the duplicates as such.