MONTANA BOTANY NOTES 21 



Carex gravida Bailey. Swan Lake. 



Carex conjuncta Boott. Poison Swamp, Whitefish, Sand Point, Idaho. 

 Carex diandra Sclirank. Oiirs is the var. ramosa (Boott) Fernald. Big- 

 fork. Swan Lake, Rost Lake, Ronan, Alta. 



Carex stenophylla Wahl. Upper Marias Pass, Deer Lodge Valley. 



Carex scirpoides Schkr. Bigfork, Swan Lake, MacDougal peak. 



Carex scoparia Schkr. Evaro. 



Carex Liddoni Boott. Garrison, Alta, Evaro. 



Carex adusta Boott. Ronan. 



Carex leptalea Wahl. Bigfork, Rost Lake, Swan Lake, Bull Island. Yel- 



^Carex scirpoidea Mx. Lambert Valley, rather common in the Sperry 



Glacier region. 



Carex aquatilis Wahl. Poison Swamp, Monida, Whitefish, Silver Bow. 

 Carex rigida Good. Lima, Monida. 



Carex lenticularis Mx. Bigfork, Swan Lake, Sand Point, Idaho. 

 Carex acutina Bailey. Blackfoot Glacier,, Alta, Swan Lake. 

 Carex Nebraskensis Dewey. Evaro, Ravalli, Bigfork, Yellow Bay, Hot 

 Springs, Monida. , . . 



Carex Parryana Dewey var. Haiiii (Olney) Rydberg. Whether this is 

 a good species I am not able to say at present. Prof. Bailey also re- 

 garded it as a variety of C. Parryana and called it var unica. A detailed 

 description of it is appended. 



This appears to be near C. Pennsylvanica. Stems leafless except at very 

 base 1 foot high, smooth, obtusely-S-angled, filiform, 1 mm. thick, erect 

 and 'stiff, light -green. Leaves several basal, 3 inches long, 4 mm. -wide 

 at base, linear-subulate, yellowish-green, flat, rigid. Bracts enlarged, chest- 

 nut-colored and scale-like at base, sheathing, the lowest with a setiform 

 green bristle about 1 inch long below .the lowest spike, the others much re- 

 duced but present. Terminal spike 19 mm. long by 2 mm. wide, sessile, all 

 staminate, with oval mostly obtuse scales which have broad hyaline, and 

 lacerated edges and chestnut-colored center, 2 mm. long. Pistillate spikes 

 contiguous, about 3, the uppermost at base of the staminate one and very 

 small and few-flowered, 4.5-6.5 mm. long, 2 mm. wide, sessile, the others 

 longer 13-19 mm. long and 6 to 15 flowered, loose and eery narrow, 

 2 mm' wide, the scales reaching about to the middle of those above on the 

 lower part of the spike. Lowest spikes on filiform peduncles but erect, 

 the peduncles not longer than the spikes except when the lowest spike is 

 subradical, when the peduncle is 3 to 4 inches long. Scales very broadly 

 ovate, barelv acute to cuspidate, dark-chestnut-colored, with white and 

 hyaline edges, about 2 mm. long, embracing the oval, very convex and 

 smooth (but papillose with oblong bosses) perigynia, which are abruptly 

 contracted at both ends to a short beak or stipe, faintly- several- nerved, tip 

 with serrate edges, mostly green, 1.5 mm. long. Monida on dry prairies. 

 Middle Temperate life zone. This differs from C. Parryana in the sheath- 

 ing bracts and smooth appearing perigynia, etc. 

 Carex Pennsylvanica Lam. Alta. 



Carex Pennsylvanica var. pinicoia. Leaves 11-15.5 mm. wide. Pistillate 

 flowers more numerous, plants more robust. Alta among pines on dry 

 hillsides. Middle Temperate life zone. 



Carex Idahoa Bailey. Monida, Butte, Ryan's Lake. 



Carex polygama Schkuhr. Rost Lake, Monida, foot of MacDougal peak. 

 Carex atrata L. Sperry and Blackfoot Glaciers. 



Carex atrata var. ovata (Rudge) Boott. 'Sperry and Blackfoot Glaciers. 

 Ours answer well to C. chalciolepis but are not all copper colored. 

 Carex Mertensii Prescott. Blackfoot Glacier. 



Carex alpina Swartz. Sperry Glacier, McDonald Lake in the Mission 

 Mts., Darby. 



