45- 



( i (MPOSITAE. 



Vol III. 



9. Antennaria aprica Greene. Rocky Moun- 

 tain Cudweed. Fig. 4401. 



Antennaria aprica Greene, Pittonia 3: ^8-\ 1898. 



Floccose-woolly or canescent, surculose, forming 

 broad patches; flowering stems 2'-i2' high. Basal 

 leaves spatulate <>r obovate, obtuse, narrowed into 

 short petioles, white-canescent on both sides, 4"-iS" 

 long, ["-4" wide; stem-leaves linear, sessile; heads 

 3"-4" broad in a terminal capitate or corymbose 

 cluster; involucre 2"-3" high, the bracts of the fer- 

 tile heads oblong, white or pink, all obtuse, or the 

 inner ones acute; those of the sterile heads oval or 

 elliptical, obtuse; achenes glabrous, or minutely 

 glandular. 



In dry soil, South Dakota to Nebraska, Alberta, Utah 

 and New Mexico. June-Sept. Erroneously referred, in 

 our first edition, as by previous authors, to the Old 

 World Antennaria dioica (L.) Gaertn. 



10. Antennaria campestris Rydberg. 

 Prairie Cat's-foot. Fig. 4402. 



Antennaria campestris Rydberg, Bull. Torr. Club 

 24: 304. 1897. 



Stolons short, leafy ; flowering stems of both 

 fertile and sterile plants 2-6' high. Basal leaves 

 obovate-cuneate, without a distinct petiole, 

 white-tomentose beneath, glabrate above, I- 

 nerved. or indistinctly 3-nerved ; stem-leaves 

 small, linear; heads 3"-4" broad in subcapi- 

 tate clusters; bracts of the fertile heads lan- 

 ceolate, greenish below, brownish at the mid- 

 dle, the apex white, acute or acuminate ; 

 bracts of sterile heads elliptic, obtuse. 



On dry prairies, Nebraska and Kansas to Sas- 

 katchewan. May-June. 



in. Antennaria neglecta Greene 

 foot. Fig. 4403. 



Field Cat's- 



Antennaria neglecta Greene, Pittonia 3: 173. 1897. 

 An ennaria petaloidea Fernald, Rhodora 1: 73. 1899. 

 A. neglecta simplex Peck, Bull. N. Y. State Mus. 67 : Bot. 

 6: S3- 1903- 



Stoloniferous, the stolons long and slender, bear- 

 ing small leaves, except at the ends, where they are 

 normally developed. Basal leaves oblanceolate or 

 cuneate-spatulate, gradually tapering to a sessile 

 base, without a distinct petiole, white-tomentose be- 

 neath, glabrate above, i-nerved; stem-leaves linear; 

 fertile plant nearly 1 high; heads 3"-4" broad, 

 corymbose or sometimes only I or 2 ; bracts brown- 

 ish, with white tips, lanceolate, acute ; sterile plant 

 4'-8' high, the heads densely clustered, the bracts 

 oblong, obtuse. 



In fields and pastures. Maine to New York, Virginia 

 and Wisconsin. April-June. 



