53 



-'1 



0. FESTIVA, Dew.y 29, 246,1S3G. Mosquito. (1020.) Xos, 1021, 10: 

 and 1023 are probably the same, but too young to determine. 



C. LEPORINA, L., FL Suec. Mosquito. (1024 ;) also, 1025, 102G, and 1027. 



0. albolutesce4s, Scliw., Anm., 66, 1821 = C. Adusta, Boott. Doubt- 

 fully referred here. Twin Lakes. (1028.) 



O. ALBOLUTESCENS, Schw., var. minor, Boott. Branch of iNorth Platte. 



(1029.) 

 C. LiDDONi, Boott, in Hook., Fl. Bor. Am., 2, p. 211, 1810. South Fark. 



(1030;) also, (1031) too young. 

 0. JA3IESII, Torr., Cyp., p. 398, 1836, Denver, South Park. 1032 ; also 



probably 1033. 

 C. STRICTA, Lam., = C. ANGUSTAta, Boott. South Park. (1034.) This 



would be more certainly determined if the specimens had lower 



sheathing leaves (too young). 

 0. HTGiDA, Good. Chibuaha Creek. (1035.) Doubtfully referred here 



(too young). 

 C. EIG-IDA, Good., var. (1036.) Doubtfully referred here (too young). 

 C. PERSONATA, Frics. Twin .Lakes, 1037 and 1038; South Pass, prob- 



ably the same. 

 C.'TUKFOSA, Fries. South Pass. (1039.) Fries, Anderson, and Boott 



vary essentially in their descriptions of this species. 



0. Parrayana, Dew., 27, 239, 1835. South Pass. (1040.) 1041, from 

 Mosquito, the same. This species seems to have a fuller develop- 

 ment farther north. I was inclined to refer a single spiked culm of 

 Hall and Harbour's collection, from a very imperfect drawing of the 

 periginium, to a uew sjiecies, C. HalUi j but these specimens show 

 no warrant for it. 



0. BuxBAUMii, Wahl., Act. Holm. Twin Lakes. (1042.) 



C. ALPINA, Swartz, 1792. South Park. (1043.) 



0. ALPINA, Swartz, var. nigrescens, Anderson. Twin Lakes, (1014.) 



0. ALPINA, Swartz, var. (1045.) 



C. ATRATA, L., Sp. PL, 2, 183G, 1763. South Pass. (1016.) 



0. ATRATA, L., var. NIGRA, Boott. Like Hall and Harbour's ISo. 587, so 

 named by Dr. Boott. Oro Camp. (1047.) 



C. ATRATA, L., var. Two specimens only. Twin Lakes. (1048.) 



C. ATRATA L., var. OVATA, Kudge, = C. atrata, L., var. ovata, Boott. 

 Mosquito. (1049.) S'orth Pass. (1050 and 1051.) These specimens are 

 . very luxuriant, with long spikelets of both colors, brown and glau- 

 cous green. 



C. AUREA, Iffutt., 2, 205, 1818. South Pass (1052, 1053, and 1054) ; 

 also Twin Lakes (1055, 1056^ and 1057), and varies from almost every 



locality. 

 C. Kossii, Boott, in Hook., Fl. Bor. Am., 2, 222, 1840. Twin Lakes. 



(1058.) Very imperfect specimens. 

 C. CAPiLLARis, L., Fl. Suec, 338, 851, 1785. South Park. (1059.) 

 O. CAPILLARIS, L., var. eloxgata, Olney, Dis. Twin Lakes. (1060.) 

 C. lanuginosa, Mx., 2, 175, 1803. Twin Lakes. (1061.) Several forms 

 of this occur in the collection, one with androgynous terminal spikes } 

 another with, single fertile flowers below the terminal spike, represent- 

 ing spikelets; and another with narrow starved spikelets. (1062 and 



1063.) 



O. ACUTIFORMIS, Ehrh., = C. PALUDOSA, Good., in Linn., Trans., 2, 202. 



South Pass. (1004.) 

 C.ARISTATA,R. Br., in Fr, ]S^arr., 764,1823. Saguache. (10G5.) 1066, 



1067, probably the same ; too young. 

 C. RHYNCOPHYSA, C. A. Meyer (!), = C. l^virostris, Blytt & Fries. 



Twin Lakes. (1068.) 



