Cyperus rivularis Kunth

9t
cyperus	rivuLaris Kunth
Hugh O’neill Hermann 824
PLANTAE EXSICCATAE GRAYANAE
824. Cyperus rivularis Kdnth
Enum. PI. ii. 6 (l8S7) ; Steud. Syn. PL Glum. ii. 4
(1855) ; Chapm. F1. So. U. S. 506 (i860) ; Britton &
Brown, 111. F1. i. 286, fig. 545 (l896) ; Small, Fl. Se.
U.S. 165 (1903) ; Abrams, 111. FL Pacif. St. i. 256, fig.
609 (l928) ; Rydb. F1. Pr. & Pl. 142 (l932) ; Kükenth.
in Engl. Pflanzenr. iv. Fam. 20 (Heft lOl), 882 (l986).
Syn. C.flavescens ß. castaneus Pursh, F1. Am. Sept. 52
(1814). C.castaneus (Pursh) Bigelow, Fl. Bost. ed. 2, 18
(l824). C. diandrus ß.? castaneus (Pursh) Torr, in Ann.
Lyc. N.Y. iii. 252 (1886) ; Gray, Man. 517 (l848). C.
Bigelowii Steud. Syn. Pl. Glum. ii. 5 (l855). Chlorocy-
perus rivularis (Kunth) Rikli in Pringsheim, Jahrb. Wiss.
Bot. xxvii. 564 (l895). Pycreus rivularis (Kunth) Palla in
Allg. Bot. Zeitschr. xiii. 48 (l907).
Associated with Rhynchospora capillacea, Juncus brachy-
cephalus, J.Dudleyi, Cyperus strigosus, Eupatorium perfolia-
tum, Selaginella apoda, Lobelia Kalmii, Verbena hastata,
Steironema quadrjflorum, Solidago Riddellii, Helenium altissi-
mum and Panicum capillare var. occidentale.
Low marshy argillaceous meadow, l£ miles east of Dex-
ter, Washtenaw County, Michigan.
Coll. F.J.Hermann.	September 8, 1987.
02819362