602 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
Heads solitary. 
Plants with slender naked stolons......-...------------- 3. A. flagellaris. 
Plants without slender stolons. 
Pistillate stems 6 to 10 cm. tall........--- Lecce eee 4. A. latisquama. 
Pistillate stems 2 to 3 cm. tall.......-.-.....-.-.-.. 5. A. dimorpha. 
Pappus bristles of staminate flowers dilated at tip. 
Plants not stoloniferous. 
Pistillate heads oblong, the bracts pinkish. .......-.-.--- - 6. A. geyeri. 
Pistillate heads not oblong, the bracts white or brownish. , 
Pubescence close, silky-woolly ........-.----------- 7. A. luzuloides. 
Pubescence floccose-woolly. 
Stems 5 to 10 cm. high; alpine plant............ 8. A. anata. 
Stems 25 to 60 cm. high; not alpine. 
Tips of the bracts not conspicuously papery.. 9. A. pulcherrima. 
Tips of the bracts conspicuously white-papery. 10. A. anaphaloides. 
Plants stoloniferous, growing in patches. 
Heads loosely racemose; inflorescence glandular... ..-. -- - 11. A. racemosa. 
Heads corymbose; inflorescence not glandular. 
Leaves 3 to 5cm. long, oblanceolate or narrowly obovate. 
Green and glalkrate above. ........-.----------- 12. A. howellii. 
Tomentose on both surfaces...........--------- 13. A. concolor. 
Leaves much smaller and narrower. 
Heads 6 to 8 mm. high; bracts white or pink .... 20. A. parvifolia. 
Heads 4 to 7 mm. high. 
Involucral bracts tinged with green or brown. 
Suffrutescent at base; bracts yellowish... 14. A. confinis. 
Not suffrutescent; bracts greenish brown. 
Leaves densely white-tomentose on 
both sides... .....2.----------- 15. A. media. 
Leaves glabrate above, loosely to- 
mentose beneath. .........----- 16. A. tomentella. 
Involucral bracts white or pink. 
Leaves obtuse, white-tomentose; bracts 
pink ........2-2-2-.--.----------- 17. A. concinna. 
Leaves acute, grayish tomentose. 
Heads in a dense cluster; bracts 
pink... 2. ..-0.2...2.-.-2------- 18. A. rosea. 
Heads in a_ loose corymb: bracts 
white ..........--2.------------ 19. A. hendersoni. 
1. Antennaria stenophylla A. Gray, Proc. Am. Acad. 17: 213. 1882. 
Antennaria alpina stenophylla A. Gray in Torr. Bot. Wilkes Exped. 366. 1874. 
Tyre Locauity: “Spipen [Naches] River.’’ Collected by Pickering & Brackenridge. 
Rance: Washington and Oregon. 
SPECIMENS EXAMINED: Wenache Mountains, Whited 1345; Ellensburg, Piper 2708; 
Whited, April 18, 1898; Pasco, Hindshaw 4, May 25, 1896; Kittitas Mountain, W hited, 
May 27, 1896; Spipen River, Wilkes Expedition: Hangman Creek, Sandberg & Leiberg 
51; Medical Lake, Sandberg & Leiberg, May, 1893, Spangle, Piper 3541; Spokane River, 
Wilkes Expedition. 
ZONAL DISTRIBUTION: Arid Transition. 
2. Antennaria leucophaea Piper, Bull. Torr. Club 29: 221. 1902. 
Type Locaity: Klickitat, Washington. Collected by Howell. 
Rance: Klickitat County, Washington. 
SPECIMENS EXAMINED: Klickitat County, Howell; near Columbus, Suksdorf. 
