Monographs Details: Becquerelia cymosa subsp. merkeliana (Nees) T.Koyama
Authority: Maguire, Bassett. 1967. The botany of the Guayana Highland--Part VII. Mem. New York Bot. Gard. 17: 1-439.
Family:Cyperaceae
Description:Distribution and Ecology - The Guianas, Amazonia and eastern Brazil. BRITISH GUIANA N.W District, Waini River, De La Cruz 3805;-10 East Coast Water Conservancy, SW of Georgetown, Hoorubia Creek, A. S. Hitchcock 16906, ^10 Lama Savvana, Jenman 6105; Pomeroon District, Pomeroon River, D e La Cruz 2939;Kaieteur Falls. Potaro River, De La Cruz 444I; Pakaraima Mts., Upper Mazaruni River, Kamarang Sta..Mora forest at alt 500 m, Maguire & Faiishaive 32598; Kamana Falls (Camp I), collecting for 1-2 miles below falls, sandstone and conglomerate, alt 2000 ft, Maguire, Maguire & Wilsori-Broume 4538a. SURINAME . Moengo, in Grote swamp, Lanjouw & Lindeman 660, 894. FREN CH GUIANA . :Montagne de Kaw, medium height forest on laterite in vicinity of camp, alt 275 m , Cowan 387IS; on bauxite. Cowan 38759. BRAZIL. Amazonas: Basin of Rio :Merida, Municipality Humayta, on plateau between Rio Livramento and Rio Ipixuna, in creek, Krukoff 7122; Para: Belem, Black 825: Belem, 6 k m N W of Inst. Agronom. Norte, near Sao Joaquim, wet place, Barbosa da Silva 85; Belem, south woods, Inst. Agronom. Norte, Archer 8054; Braganca Railroad, Goerdi in 1914. COLOMBIA. Vaupes: Rio Apaporis, Soratama, Schultes & Cabrera 16159^ 10 (US).

Discussion:

Becquerelia merkeliana Nees, Fl. Brasil. 2(1): 191. tJ7. 1842.

Becquerelia gigantea Hoehst. ex Steudel. Syn. PI. Glumac. 2: ISO. 1855. Syn. nov. Scleria divaricata Nees ex. Bockeler, Linnaea 38: 539. 1874; Nees, Linnaea 9: 303. 1834, nomen nudum; Kunth, Enum. PI. 2: 359. 1837, nomen nudmn; Steudel, 8511. PI. Glumac. 2: 180. 1S55. nomen in synonymia.

Becquehria divaricata (Nees) Palla, Denkschr. Wien. Akad. Wiss. Math. Nat. Kl. 79: 198. 1908

Scleria merkeliana (Nees) C.B. Clarke, Illustr. Cyper. t.133. 1909, comb.invalida in textu

Becquerelia cymosa Brongn. sensu Kunth, Enum. Pl. 2: 361. 1837

Type. Mararacaiba, Prov. Sebastianopolitanae, [Brazil], Merkel (M).

The binomial, Becquerelia divaricata, or its basionym, Scleria divaricata, has been more frequently used for the taxon rather than the name, B. merkeliana. The name, 5. divaricata. was. however, a nomen nudum when it was first published by Nees, and was not validly published until 1874. when it was given a description by Bockeler. Furthermore, when Bockeler described it, he cited the name in the synonymy of the name, B. merkeliana, which had already been validly published before that date. The name, S. divaricata. is, therefore, superfluous and illegitimate, and the name, B. divaricata, which was based on an illegitimate name, is also illegitimate.

Distribution:Guyana South America| Suriname South America| French Guiana South America| Brazil South America| Colombia South America|