527 
Scirpus cyperinus (L.) Kunth, Enum, ii, 170 (1837); Eriophorum cyperinum L. Sp. 
Pl. ed. 2,1, 77 (1762). 
Rare: Custer, altitude 1,600 m., July 16 (No. 1072). 
Scirpus pauciflorus Lightf. Fl. Scot. 1078 (1777). 
Banks of French Creek, Custer, altitude 1,600 m., July 16 (No. 1073). 
Eleocharis palustris (L.) Roem. & Schult. Syst. Veg. ii, 151 (1817); Scirpus palus- 
tris L. Sp. Pl. i, 47 (1753). 
The specimens of the form most common in the Black Hills are slender and resem- 
ble variety glaucescens in habit, but the tubercle is rhomboidal, constricted below. 
Lead City, altitude 1,600 m., July 6; Custer, altitude 1,600 m., July 16 (No. 1074). 
At Hot Springs, altitude 1,060 m., August 3, specimens were collected which had 
a taller, flattened culm, 6 to 8 dm. high; finely striate and purplish at the base; 
spikes large with thick, scarious-margined bracts. No akenes were seen (No. 1075). 
Eleocharis acuminata (Muhl.) Nees, Linniwa, ix, 294 (1885); Scirpus acuminatus 
Muhl. Gram. 27 (1817). 
Low, about 2 to 2.5 dm, high, slender, flat, resembling EF. tenuis, but the akenes 
are those of /. acuminata, viz, bluntly triangular, finely muricate, yellowish, with 
the tubercle small, pyramidal. Hot Springs, altitude 1,050 m., June 6; Hermosa, 
altitude 1,000 m., June 24 (No. 1076). 
Carex straminea crawei! Booit, I]. 121 (1562). 
Rare: Hot Springs, altitude 1,050 m., August 5 (No. 1077). 
Carex filifolia Nutt. Gen. ii, 204 (1818). 
This is regarded as very good for ‘winter pasture,” and very likely has a nutritive 
value. Ona dry table-land: Hot Springs, altitude 1,100 m., June 14 (No. 1078). 
Carex pennsylvanica Lam. Encyel. iii, 388 (1789). 
A western form with very long leaves (over 1.5 dm. long), was found in the open 
valieys near Custer, altitude 1,700 m., August 1 (No, 1079). 
A low form with short leaves was common in early spring in the same valleys; 
May 5 (No. 1080), 
Carex marcida Boott; Hook. Fl. Bor. Amer. ii, 212 (1839). 
Two forms were collected, which Professor Bailey doubtfully refers to this species, 
They are both too young for identification. One, more tufted and lower, was found 
in the open valleys near Custer, altitude 1,700 m., June 5 (No. 1081). The other, 
taller and more simple, was growing in a similar place, June 4 (No. LOS4). 
Carex richardsonii R. Br.; Richards. App. Frankl. Journ. 751 (1823). 
Common throughout the open > valleys around Custer, altitude 1,700 m., June 6 
(No. 1082). 
Carex stenophylla Wahl. Kongl. Sven. Vet. Akad. Hand. ser. 2, xxiv, 142 (1803). 
The specimens are too young for identification, but are referred, subject to question, 
to this species. Open valley around Custer, June 1 (No. 1083). 
Carex stricta Lam. Enecyel. 1ii, 387 (1789). 
A form of this species, very slender, with long, soft leaves. In a damp, shaded 
place below Sylvan Lake, altitude 1,900 m., June 9 and July 18 (No, 1085). 
Carex siccata Dewey, Amer. Journ. Sci. x, 278 (1826). 
Rare: on the railroad embankment in Elk Canyon, altitute 1,200 m., June 29 
(No. 1086). 
Carex festiva Dewey, Amer. Journ. Sci, xxix, 246 (1835). 
Very rare: near Rapid Creek, Rochford, altitude 1,600 m., July 12 (No, 1087). 
Carex utriculata Boott, Hook. Fl. Bor. Amer. ii, 221 (1839). 
Wet meadow: Custer, altitude 1,650 m., July 16 (No. 1088). 
‘The Carices of this collection were determined by Prof. L. H. Bailey. 
