152 MACKENZIE: NOTES ON CAREX 
‘This species, which is apparently common from Missouri and 
Kansas through Arkansas and Oklahoma to Texas, was first 
named Carex Muhlenbergu australis by Olney in 1873 in Hall’s 
Plantae Texanae (page 25), without description, and it does not seem 
to have been published with description until 1886 as cited above. 
It is quite distinct from Carex Muhlenbergit Schkuhr, and merits 
specific recognition fully as much as other members of this group. 
The characters separating the two species may be contrasted as 
follows : 
Perigynia spreading, 3 mm. long; lower spikes strongly separated ; 
racts not broadly dilated at base; scales about the length of 
and narrower than the perigynia, short-awned. C. Muhlenbergit. 
Perigynia ascending, 4 mm. long; lower spikes distinct, but not 
separated ; bracts broadly dilated at base; scales (especially 
the lower in each spike) strongly awned, and exceeding and 
as wide as perigynia, C. austrina. 
SPECIMENS EXAMINED : 
Missouri : Sheffield, Bush 1997, June 6, 1904; Swan, Bush 
2936, May 21, 1905; Sheffield, Bush 1956, May 28, 1904; Dod- 
son, Mackenzie, May 10, 1896; Courtney, Bush 2082, July 9, 
1904; Dodson, Bush 1674, May 14, 1902. 
Kansas: Bucklin, Ford County, Hitchcock, July, 1892. 
Arkansas: Clay County, Eggert, May. 25, 1893. 
INDIAN TERRITORY : Sapulpa, Bush ggg and 953, May 6, 1895, 
and May II, 1895 ; also 7288, May 25, 1895 ; between Fort Cobb 
and Fort Arbuckle, Palmer 367, 1868. 
Texas: Mineola, Reverchon 2392, April 22, 1901 ; Galveston, 
Plank, March 2, 1892; Dallas, Reverchon 2885, April 17, 1902; 
Corsicana, Reverchon 3624, April 14, 1903; Houston, Hal/ 230, 
April 10, 1872 (type); Belknap, Hayes, April 6, 1858. 
’ Carex brevisquama sp. nov. 
Culms erect, rather slender, roughened on the angles immedi- 
ately beneath the head, 2.5-6 dm. high, much exceeding the 
leaves, growing in clumps, but the scaly rootstocks rather notice- 
ably creeping. Leaves with well-developed blades about three to 
a culm and attached to its lower part only, the narrow blades erect 
or somewhat recurved, 8-30 cm. long, 1 mm. wide, roughened on 
the margins and especially towards the long-attenuate apex ; spikes 
closely aggregated in a solitary, dense, terminal head, usually 15- 
