May 12, 1909 55 



Pistillate scales narrow ly ovale, a< ute lo cuspidate ( '.. fissuricola 



Pistillate scales oVate-oblong, very obtuse 

 Blades of basal leaves wi lely spreading, 5-8 mm. wide; 



pistillate spikes oblohg-cj lindric C. luzulaefoli 1 



Blades of basal leaves ascending, 3--I tnm. wide; pistillate 



spikt-s linear-oblong C. ablata 



A characteristic which readily distinguishes this species 



from species like Carex albida Bailey^ C. kerbariorum Bailey, 



aid C. pseudo-japonica C. B Clarke, is its nearly sessile statni. 



nate spikes, as compared with the strongly pednncled staminate 



spike occurring in those species. Carex luzttlina Bailey, may 



be separated by its gradually short-beaked perigynia, the beak 



being less than 0.5 mm. long. 



Carex heteroneura W. Boott, Bot. Cah 2: 249. 1880. 



No. 9368, collected August 8th, on the ridge on the north 

 side of Lamoille canyon, at an elevation of 8950 feet. Appar- 

 ently this is a rather local species, as it is very sparingly repre- 

 sented in herbaria. 



Carex Hcomi Boott; Hook. Fl. Bor. Am. 2: 211. 1840. 



No. 9369, collected August 8th, on the ridge on the north 

 side of Lamoille canyon, elevation S950 feet. This species stands 

 near Carex occidentalis Bailey, and Carex Hookeriana Boott, 

 and at times is difficult to distinguish from one or another of 

 these species. The present specimens are noteworthy for the 

 great development of the lowest b:a:t, which is unusual. 



Carex lanuginosa Michx. Fl. Bor. Am. 2: 175. 1S03. 



No. 9257, collected July 31st, in meadows, William Smi- 

 ley's ranch near Teeth, elevation 5800 feet. Widely distributed 

 throughout the greater part of the United States. 



Carex marcida Boott; Hook. Fl. Bor. Am. 212. pi. 212. 

 1840. 



No. 9258, collected July 31st, in meadows, William Smiley's 

 ranch near Deeth, elevation 5800 feet; also No. 91 S8, collected 

 July 27th in meadows, Humboldt Wells, elevation 5630 feet. 

 This is an exceedingly variable species, and has a wide distribu- 

 tion in the western half of North America. 



