466 



IRIDACEAE 



1. Sisyrinchium sarmentosum Suksdorf. 

 Suksdorf's Blue-eyed Grass. Fig. 1140. 



Sisyrincltiinii saniiciitosinii Suksdorf, Erythea 3: 121. 1895. 

 Sisvriiicliiiiiii scl^ti'iitrionale Bick. Bull. Torrey Club 26: 452. 

 '1899. 



Stems growing in small tufts, 10-20 cm. high, simple 

 and leafless, bearing a sessile spathe, or sometimes 

 with a leaf-bearing node and a solitary peduncle, about 

 1.5 mm. wide, narrowly winged, the margins smooth. 

 Leaves about half to nearly equalling the stems, 2' mm. 

 wide, attenuate at apex; spathe very narrow; outer 

 bract linear. 40-50 mm. long, scarcely 2 mm. wide; 

 inner bract similar, 25-30 mm. long, exceeding the 

 slender glabrous pedicels ; flowers usually 1-3 ; perianth- 

 segments about 8 mm. long, pale violet, not emarginate, 

 slenderly aristulate : capsule about 3 mm. high, glabrous. 



Margins of wet meadows and streams. Arid Transition and 

 Canadian Zones; British Columbia to Manitoba, eastern Washing- 

 ton and North Dakota. Type locality: Skamania County, Wash- 

 ington. 



2. Sisyrinchium halophyllum Greene. 

 Nevada Blue-eyed Grass. Fig. 1141. 



Sisyrinchium halophyllum Greene, Pittonia 4: 34. 1899. 

 Sisyrinchium leptocaulon Bick. Bull. Torrey Club 26: 451. 1899. 

 Stems arising from rather coarse fibrous roots, simple, 

 bearing a solitary sessile spathe, 10-30 cm. high, smooth, 

 the margins narrowly winged. Leaves about half the 

 length of the stems, 1.5-3 mm. wide, pale green, their 

 margins smooth ; spathe narrow, the outer bract 12-30 

 mm. long, lanceolate, acute or attenuate at apex, broadly 

 scarious-margincd ; pedicels glandular-pubescent ; peri- 

 anth violet-purple, 9-10 mm. long, somewhat cyathiform, 

 prominently aristulate at apex ; capsule about 4 mm. 

 high, pale grayish green, pubescent. 



Meadows, especially in alkaline soil. Upper Sonoran and Arid 

 Transition Zones; Idaho to Utah west to the eastern slopes of the 

 Sierra Nevada, California. Type locality: Humboldt Wells, near 

 Wells, Nevada. 



3. Sisyrinchium idahoense Bick. 



Idaho Blue-eyed Grass. Fig. 1142. 



Sisyrinchium idahoense Bick. Bull. Torrey Club 26: 445. 



"1899. 

 Sisyrinchium segcfiim Bick. Bull. Torrey Club 26: 449. 1899. 

 Sisvrinchinni oreohltihim Bick. Bull. Torrey Club 31 : 381. 



"1904. 



Stems arising from fibrillose roots, simple and 

 leafless or occasionally a single terminal peduncle 

 with subtending leaf, 10-45 cm. high, 1-2 mm. wide, 

 distinctly winged, the margins smooth or more or 

 less ciliolate. Leaves about half the length of the 

 stems, 1-3.5 mm. wide, smooth on the margins ; 

 spathe narrow, outer bract 2-6 cm. long, narrowly 

 attenuate; pedicels glabrous; perianth violet-purple 

 10-15 mm. long, the segments slightly if at all 

 emarginate, mucronulate-aristulate ; ovary glandu- 

 lar-pubescent ; capsule globose, 3-6 mm. long, brown, 

 sparsely puberulent. 



Moist grassy places. Arid Transition and Canadian Zones; 

 Idaho and Washington to the Sierra Nevada, California. Type 

 locality: Nez Perces County, Idaho. 



