Cyperus niger var. castaneus Kük.

, Pflanzenr. (Engler) IV.20(Heft 101): 344 (1936), nom. illeg.
IPNI Life Sciences Identifier (LSID)
Species Name
Cyperus niger Ruiz & Pav., Fl. Peruv. [Ruiz & Pavon] 1: 47 (1798), nom. illeg.
Das Pflanzenreich (Engler)
IV.20(Heft 101): 344
Date of Publication
28 Apr 1936
Family as entered in IPNI

Nomenclatural Notes

Status: nom. illeg. nom. superfl.


The name Cyperus diandrus var. castaneus (Pursh) Torr. (1836) is a new combination based on C. flavescens var. castaneus Pursh (1813). Watson (Bot. California 2: 214. 1880) used the name C. diandrus var. castaneus. Kükenthal (l.c., pp. 382-383) treated C. diandrus var. castaneus as a synonym of C. rivularis; on p. 344, Kükenthal published ‘var. ß. castaneus (S. Wats.) Kükenth. comb. nova. — C. diandrus var. castaneus S. Wats. Bot. Calif. II (1880) 214 (excl. synon.)’ and cited C. diandrus var. capitatus Britton (1886) as a synonym. Since ‘C. diandrus var. castaneus S. Wats.’ does not exist, Kükenthal’s publication of ‘var. ß. castaneus (S. Wats.) Kükenth’ is corrected as ‘var. ß. castaneus Kük.’ and treated as a superfl. name for C. diandrus var. capitatus.


Nomenclatural link
Cyperus flavescens var. castaneus Pursh, Fl. Amer. Sept. (Pursh) 1: 52 (1813).
Replaced synonym
Cyperus diandrus var. capitatus Britton, Bull. Torrey Bot. Club 13(11): 205 (1886).