Urochloa comata (Hochst. ex A.Rich.) Sosef

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 : 75-76

publication ID

https://doi.org/10.3767/blumea.2023.68.02.01

persistent identifier

https://treatment.plazi.org/id/35071B21-FF9B-FFBF-9632-FC82FE6186E7

treatment provided by

Felipe

scientific name

Urochloa comata (Hochst. ex A.Rich.) Sosef
status

 

Urochloa comata (Hochst. ex A.Rich.) Sosef View in CoL

Urochloa comata (Hochst. ex A.Rich.) Sosef (1999) View in CoL 64. — Panicum comatum Hochst. ex A.Rich. (1850) View in CoL 376. — Brachiaria comata (Hochst. ex A.Rich.) Stapf (1919) View in CoL 561. — Lectotype (designated by Sosef 2016): Schimper 1196 (lecto P [P00442087]; isolecto BM [BM000923206], BR [BR0000008366900], E [E00200288], G [G00015879, G00015880, G00087100], GOET [GOET006082], JE [JE00007255], K [K000282197, K000282199, K000282200], LG [LG0000090036187], M [M0103974, M0103975], MO [MO-1660899], MPU [MPU024470, MPU024472], P [P00442086, P00731451], US [ US 00147781, US 00931397], W [W000- 23389, W19160023362, W188900236402], WAG [WAG0003678]), Ethiopia, prope Gafta, 15 Sept. 1838.

Panicum indutum Steud.(1853) View in CoL 68. — Type: Jardin 56 (holo P [P00731466]), Gabon, près de la rivière de Gabon, Ile du Prince, 1847.

Panicum kotschyanum Steud. (1853) 68. — Lectotype (designated here): Kotschy 254 (lecto P [P02047216]; isolecto BM [ BM000923204 ], BR [BR0000008645173, BR0000090019647 ],E [E00200287], G [G00015875, G00015876, G00015877], HOH [ HOH008979 ], K [K000282202, K000- 282203], LD [1755028], M [M0103972, M0103973], MO [MO-1742004], MPU [ MPU024440 ],P [P00731441,P02047212,P02047214,P02047215], REG [ REG000278 ], TUB [ TUB006470 , TUB006471 ], US [ US 00132920, US00902277], W [W0000278, W18890236403, W19040010262], WAG [ WAG0001479 About WAG ]), Sudan, Tekele, Kohn Mt., 9 Nov. 1839.

Panicum stuhlmannii K.Schum. (1895) 102. — Type : Stuhlmann 4092 (B, lost), Tanzania,Bukoba. — Neotype (designated here): Maitland 253 (neo K [K000282051]), Uganda, Entebbe, Oct. 1922.

Panicum scalare Mez (1904) View in CoL 138, nom. illeg., non P. scalarum Schweinfurth (1894) View in CoL . — Brachiaria scalaris Pilg. (1928) View in CoL 269. — Lectotype (designated here): Volkens657 (lecto B [B 10 0168687];isolecto BR [BR0000008756275, BR0000008756541], JE [JE00007255],K [K000282049), Tanzania,Moshi District, Kilimandscharo, Marangu, 15 Aug. 1893.

Panicum villosum Lam. var. erythraeum Chiov. (1908) View in CoL 302. — Lectotype (designated here): Pappi 496 (lecto FT [ FT000196 ]; isolecto MO [MO-1742129], S [S14-5630]), Eritrea, Saraè , Lungo il fiume Mareb presso Debarroa, 8 Oct. 1902.

Panicum secernendum Mez (1917) View in CoL 68. — Brachiaria secernendum (Mez) Henrard (1940) 432. — Lectotype (designated here): Schimper 1612 (lecto B [B 10 0168266]; isolecto BM [BM000923200], BR [BR0000008366917, BR0000008639691],FR [FR0030331],G [G00087099,G00087100,G000- 87159],GOET[GOET006081,GOET006251],K [K000282197],LG[LG00000- 90036194], M [M0103957, M0103958], S [S08-5504], TUB [TUB006478, TUB006479], US [ US 00902281], W [W19160024297]), Ethiopia, versus fluvium Tacaze prope Djeladjeranne, 1 Sept. 1841.

Brachiaria epaleata Stapf (1919) View in CoL 555. — Lectotype (designated here): Schimper 1612 (lecto K [K000282197]; isolecto: see previous entry under Panicum secernendum View in CoL ), Ethiopia, versus fluvium Tacaze prope Djeladjeranne, 1 Sept. 1841.

Brachiaria coronifera Pilg. (1936) View in CoL 262. — Lectotype (designated here): Schlieben 439 (lecto B [B 10 0168268]; isolecto HBG [ HBG506462 ], K [K000282048], LE [ LE00009216 ], LISC [ LISC003453 , LISC003454 ], MO [MO-1742040], PRE [ PRE0664143 -0], US [ US 00131832, US00902276], WIS [v0254098WIS]), Tanzania, Lupembe Bez. Iringa, Likanga , 30 Mar. 1931.

Distribution — Senegal, Benin, Nigeria and most of Central and East Africa, south to Zambia and Zimbabwe, north to Ethiopia and Eritrea, also in Yemen.

Nomenclatural notes — The protologue of Panicum kotschyanum mentions a single collection, Kotschy 254. The herbarium of Steudel being at P, the lecotype is preferably selected from their material. However, at P there are five sheets of this collection, some with still other collections mounted on them. The sheet we have chosen as the lectotype is where the label indicates it originated from the herbarium of Steudel. The others should be regarded as duplicates and hence isolectotypes.

The type of Panicum stuhlmannii has been lost at B, probably during the WWII fire, and no duplicates could be located. We have chosen Maitland 253 at K as the neotype, since it carries a label where C.E. Hubbard states he has compared it with the type of P. stuhlmannii in 1934, when that type was still available. The protologue of Panicum villosum var. erythraeum cites six specimens, all syntypes and collected by Pappi in Eritrea. We have chosen Pappi 496 as the lectotype, since it has several duplicates.

The protologue of Panicum secernendum cites two collections, ‘coll. Paris’ 710 and Schimper 1612. The first has not been traced at P, while there is a specimen at W that might represent it with some uncertainty. There are no such doubts about the second one, which also has numerous duplicates, which is why it was the obvious choice for the lectotype.

The protologue of Brachiaria epaleata mentions two specimens from Ethiopia, Schweinfurth 1146 and Schimper 1612. At Kew, both are mounted on the same sheet, but with different barcodes, and carry an analysis of the spikelet and annotations by Stapf. We preferred choosing the Schimper 1612 collection as lectotype, because it has more duplicates in other herbaria, and since it is also the (lecto)type of Panicum secernendum thus tightly linking the two names.

Kingdom

Plantae

Phylum

Tracheophyta

Class

Liliopsida

Order

Poales

Family

Poaceae

Genus

Urochloa

Loc

Urochloa comata (Hochst. ex A.Rich.) Sosef

Oulo, M., Zon, A. P. M. van der & Sosef, M. S. M. 2023
2023
Loc

Urochloa comata (Hochst. ex A.Rich.)

Sosef 1999
1999
Loc

Brachiaria secernendum (Mez)

Henrard 1940
1940
Loc

Brachiaria coronifera

Pilg. 1936
1936
Loc

Brachiaria scalaris

Pilg. 1928
1928
Loc

Brachiaria comata (Hochst. ex A.Rich.)

Stapf 1919
1919
Loc

Brachiaria epaleata

Stapf 1919
1919
Loc

Panicum secernendum

Mez 1917
1917
Loc

Panicum secernendum

Mez 1917
1917
Loc

Panicum villosum Lam. var. erythraeum

Chiov. 1908
1908
Loc

Panicum scalare

Mez 1904
1904
Loc

P. scalarum

Schweinfurth 1894
1894
Loc

Panicum indutum

Steud. 1853
1853
Loc

Panicum comatum Hochst. ex A.Rich. (1850)

A. Rich. 1850
1850
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