526 
JUNCACEZ. 
Juncus vaseyi Engelm. Trans. St. Louis Acad. ii, 448 (1866). 
In habit very much resembling the next, from which it differs in the longer, nar- 
rower capsule and the tailed seeds. It was growing together with the next at Hot 
Springs, altitude 1,050 n., August 3 (No. 1054), 
Juncus tenuis Willd. Sp. Pl. il, 214 (1799). 
Hot Springs, altitude 1,050m., August 3; Custer, altitude 1,650 m., May 30 (No, 1055). 
Juncus bufonius L. Sp. Pl. i, 328 (1753). 
Rare: Hermosa, altitude 1,050 m., June 22 (No. 1056). 
Juncus longistylis Torr. Bot. Mex. Bound. 228 (1859). 
Not common: Lead City, altitude 1,700 m., July 6 (No. 1057). 
Juncus xiphioides montanus Iinge!m. Trans. Acad. St. Louis, ii, 481 (1868). 
Rare; wet meadow: Custer, altitude 1,600 m., August 16 (No. 1058). 
Juncus nodosus L. Sp. Pl. ed. 2, i, 466 (1762). 
Banks of Fall River, near Hot Springs, altitude 1,050 m., August 3 (No. 1060). 
Juncus torreyi Coville, Bull, Torr. Club, xxii, 303 (1895); Juneus nodosus megace- 
phalus Torr. FIN. Y. ii, 826 (1843), not J. megacephalus Curtis. 
With the preceding (No. 1061). 
Juncoides comosum (Meyer) Sheldon, Bull. Geol. Nat. Hist. Surv. Minn. ix, 64 
(1894); Luzula comosa Meyer, Syn. Luz. 18 (1823). 
Rare: Elk Canyon, altitude 1,200 m., June 29 (No. 1062). 
ALISMACE. 
Sagittaria arifolia (Nutt.) J. G. Smith, Ann. Rep. Mo. Bot. Gard. vi, [reprint 6] 
(1894). 
The akenes are not mature cnough for satisfactory identification. Custer, altitude 
1,600 m., July 16; Hot Springs, altitude 1,050 m., August 3 (No. 1063). 
ZANNICHELLIACEA. 
Potamogeton pectinatus L. Sp. Pl. i, 127 (1758). 
In the warm springs above Hot Springs, altitude 1,050 m., August 3 (No. 1064). 
Potamogeton foliosus Raf. Med. Rep. ser. 2, v, 354 (1808). 
In the warm springs: Hot Springs, altitude 1,050 m., June 15 (No. 1065). 
LEMNACES. 
Lemna minor L. Sp. P1. ii, 970 (1753). 
Rapid Creek, altitude 1,000 m., July 25 (No. 1066). 
CYPERACEA. 
Cyperus aristatus Rottb. Dese. & Icon. 23 (1773). 
Rare: only a few small specimens collected in Ruby Glen, Custer, altitude 1,700 m., 
August 19 (No, 1067). 
Cyperus acuminatus Torr. & Hook. Ann. Lyc. N.Y. ili, 455 (1836). 
Wet meadow: Custer, altitude 1,700 m., July 16 (No. 1068). 
Scirpus americanus Pers. Syn. i, 68 (1805), 
Very rare; only one poorspecimen secured: Elk Canyon, altitude 1,200 m., June 29 
(No. 1069), 
Scirpus lacustris I. Sp. Pl. i, 48 (1753). 
Elk Canyon, altitude 1,200 m., June 29 (No. 1070). 
Scirpus atrovirens pallidus Britton, Trans. N. Y. Acad, ix, 14 (1889). 
In French Creek, at Custer, altitude 1,600 m., August 1 (No. 1071). 
