154 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
4 
5. Sitanion latifolium Piper, Erythea 7: 99. 1899. 
Types tocaniry: “Blue Mts., Walla Walla County, Wash.’ Collected by Piper. 
Rance: Known only from the type specimen. 
SPECIMENS EXAMINED: Blue Mountains, Walla Walla County, Piper, July, 1896. 
6. Sitanion basalticola Piper, Bull. Torr. Club 30: 234. 1903. 
Tyre Locauity: “In basaltic soil, Coulee City, Washington.’’ Collected by Piper. 
Rance: Douglas County, Washington. 
SPECIMENS EXAMINED: Coulee City, Piper 3924. 
ZONAL DISTRIBUTION: Arid Transition, 
7. Sitanion ciliatum Elmer, Bot. Gaz. 36: 58. 1903. 
Type Locauity: “On dry rocky hills west of Wenatchee,”? Washington. Collected by 
Whited. 
Rance: Washington. 
SPECIMENS EXAMINED: Wenache Mountains, WAited 1360; Waterville, S. /. Jordan; 
Coulee City, Piper 3923; Lincoln County, Sandberg & Leiberg 221; Bickleton, Suksdorf 127. 
ZONAL DISTRIBUTION: Arid Transition. 
8. Sitanion hystrix (Nutt.) J.G. Smith, U.S. Dept. Agr. Div. Agrost. Bull. 18: 15. 1899, 
Aegilops hystric Nutt. Gen. 1: 86. 1818. 
Sitanion albescens Elmer, Bot. Gaz. 86: 57. 1903. 
Type vocauity: ‘Arid plains of the Missouri.’’ 
Rance: Washington to Wyoming and Colorado. 
SPECIMENS EXAMINED: Ellensburg, Piper 2579; Whited 670; Snipes Mountain, Cotton 
380; Pasco, Piper 2962; Coulee City, Piper 3921, 3922; Spokane, Piper, June 25, 1897: 
Wenas, Griffiths & Cotton 76; Walla Walla, Leckenby, July, 1898. 
ZONAL DISTRIBUTION: Upper Sonoran and Arid Transition. 
9. Sitanion velutinum Piper, Bull. Torr. Club 30: 233. 1903. 
Tyre Locaity: “Steptoe, Whitman County, Washington.” Collected by Vasey. 
Rance: Eastern Washington. 
SPECIMENS EXAMINED: Near Steptoe, Vasey. 
10. Sitanion planifolium J.G. Smith, UsS. Dept. Agr. Div. Agrost. Bull. 18: 19. 1899. 
Tyrer cocauity: “High mountains, Skamania County, Wash.’ Collected by Suksdorf. 
Rance: Mountains of Washington. 
SPECIMENS EXAMINED: Olympic Mountains, Eimer 1903; Skamania County, Suksdorf 
224. 
ZONAL DISTRIBUTION: Arctic? 
11. Sitanion rubescens Piper, Bull. Torr. Club 30: 234. 1903. 
Type Locauity: ‘Dry rocky places, 2,300 m. altitude, Mount Rainier, Washington.” 
Collected by Piper. 
SPECIMENS EXAMINED: Mount Rainier, Piper 1954. 
ZONAL DISTRIBUTION: Arctic. 
Munroa squarrosa Torr. and BoureLoua oOLIGosracHya Torr. are included in Suks- 
dorf’s list. There is no direct evidence that either of these occurs in the State. 
CYPERACEAE. SEDGE FAMILY. 
Flowers monoecious; akene inclosed in a sac-like structure 
(perigynium) ..........-2.22-2 2-20-2222 0222252222022 ee CAREX (p. 161). 
lowers perfect ; spikelets all alike. 
Spikelets flattened, the scales 2-ranked. 
Perianth-brist!es none; inflorescence terminal... ....... CYPERUS (p. 155). 
Perianth-bristles 6 to 9; inflorescence axillary. ......- - Duticnium (p. 156). 
