278 BOTANY. 
Carex DecIDUA, Boott—Willow Spring, Arizona, at 7,195 feet eleva- 
tion (233), Rothrock. 
Carex Buxpaumu, Wahl.—Twin Lakes, Colorado (1042). 
Carex aTrata, L.—South Park (1046). Var. ntera (C. nigra, All.)\— 
Oro City, Colorado (1047). Var. ovata (C. ovata, Rudge.)—South Park 
(1050, 1051). Var. from Mount Graham, Arizona, at 9,000 feet (431), 
with cylindrical spikes on elongated weak peduncles. 
Carex atpina, Sw.—South Park, Wolf (1013). 
Carex Parryana, Dew.—Smoothish, 4-18’ high; leaves }/ wide, with 
revolute margins, tapering to a long slender point, shorter than the culm; 
spikes oblong or cylindrical, either single, dicecious, or 1-4, the uppermost 
much the largest, about 1’ long, male, or female with scattered male flowers, 
the others female; bracts 1-2, slender, the lowest shorter than the culm, 
with connate purple auricles forming a short (1-2 long) sheath; perigynia 
triquetrous, broadly ovate or obovate, emarginate, serrate-ciliate on the 
margins above, about the length of the broadly ovate, obtuse, mucronate, 
purple scales with hyaline margins; nerves 2, marginal; stigmas 3; acliene 
obovate, triquetrous.—South Park (1040, 1041). 
Carex aurEA, Nutt—Twin Lakes, Colorado (1052-1057). Willow 
Spring, Arizona, at 7,195 feet (215); a tall form, with short bracts. 
Carex Rossu, Boott——Twin Lakes (1058). 
Carex capiLiaris, L.—South Park (1059). Var. eLoneara, Torr, 
Twin Lakes (1060). 
Carex Lanueinosa, Mx.—Twin Lakes (1061, 1062). Willow Spring, 
Arizona, at 7,195 feet (241). 
Carex aristaTa, R. Br—A single specimen without number or ticket. 
Carex sp.? (1064), Colorado. Too young to determine. 
Carex utricuLaTa, Boott—Twin Lakes, Colorado (1069) (1068, 
with more globular fruit, resembling C. ampullacea, Good., common in the 
Eastern States). Var. gLososa, Olney, Sierra Blanca, Arizona (806). 
Carex vesicariA, L., var. atpicuna, Fries. (C. saxatilis, L.; C. pulla, 
Good.; C. Grahamii, Boott.)\—6-24' high, sharply angled, rough above ; 
leaves 2” wide, shorter than the culm, tapering to a long, triquetrous apex ; 
male spikes 1-2, about 1’ long, female 1-3’ long, 3” wide, ohlong or cylin- 
