COMPOSITAE 943 



petioled or sessile. Heads composed of both tubular and radiate flowers, in a ter- 

 minal narrow spike-like thyrsus. Involucre narrowly campanulate, its bracts cori- 

 aceous, imbricated in few series, the outer successively smaller. Receptacle small, 

 naked. Rays small, yellow, pistillate. Disk-flowers perfect, their corollas tubu- 

 lar, somewhat expanded above, 5 -cleft. Anthers obtuse and entire at the base. 

 Style-branches flattened, their appendages lanceolate. Achenes 8-10-ribbed. 

 Pappus a single row of scale-like bristles, shorter than the achene. [Greek, short- 

 bristle, referring to the pappus.] A monotypic genus. 



1. Brachychaeta sphacelata (Raf.) Britton. False Goldenrod. (I. F. 

 f. 3721.) Stem pubescent, 6-12 dm. high. Basal and lower leaves broadly ovate, 

 cordate or truncate at the base, acute at the apex, sharply serrate, 7-15 cm. long, 

 the slender petioles 7-22 cm. long; stem-leaves gradually smaller and shorter-peti- 

 oled, the uppermost very small and sessile; heads about 5 mm. high, racemose- 

 secund or densely clustered on the short branches of the narrow elongated terminal 

 thyrsus; bracts of the involucre oblong or linear-oblong, obtuse or acutish; rays 

 and disk-flowers each about 5. In dry woods, western Va. to Ind., south to N. Car. 

 and Ga. Aug. -Sept. \B. cor data T. & G.j 



25. APHANOSTEPHUS DC. 



Erect or ascending canescent branching herbs, with alternate leaves, and rather 

 large heads of both tubular and radiate flowers, solitary at the ends of the branches. 

 Involucre hemispheric, its bracts lanceolate or linear, scarious-margined, imbri- 

 cated in a few series, the outer smaller. Receptacle convex or conic, naked. Ray- 

 flowers pistillate, white or purplish. Disk-flowers perfect, yellow, their corollas 

 tubular, the limb expanded above, 5-dentate. Anthers obtuse and entire at the 

 base. Style-branches flattened, their appendages short, obtuse. Achenes many- 

 ribbed. Pappus a short dentate crown. [Greek, faint-crown.] About 5 species, 

 of the southwestern U. S. and Mex. 



1. Aphanostephus skirrobasis (DC.) Trelease. Aphanostephus. (I. F. 

 f. 3722.) Erect, or diffusely branched, densely canescent, 1.5-6 dm. high. Basal 

 and lower leaves spatulate, obtuse, 2-10 cm. long, somewhat dentate, laciniate or 

 entire, narrowed into margined petioles ; upper leaves lanceolate, oblong or oblance- 

 olate, obtuse or acute, mostly sessile, smaller; heads 16-25 mm - broad, 6-10 mm. 

 high; rays numerous, narrow, entire. In dry soil, Kans. to Tex. Also in Fla. 

 May-Aug. 



26. BELLIS L. 



Tufted herbs, with branching or scapose stems, alternate or basal leaves, and 

 rather large heads of both tubular and radiate flowers, solitary at the ends of the 

 branches, or of the monocephalous scape. Involucre hemispheric or broadly cam- 

 panulate, its bracts herbaceous, imbricated in 1 or 2 series, nearly equal. Recep- 

 tacle convex or conic, naked. Ray-flowers white or pink, pistillate. Disk-flowers 

 yellow, perfect, their corollas tubular, the limb 4-5-toothed. Anthers obtuse and 

 entire at the base. Style-branches flattened, their appendages short, triangular. 

 Achenes flattened, nerved near the margins. Pappus none, or a ring of minute 

 bristles. [Latin, pretty.] About 9 species, of the northern hemisphere. Only the 

 following are known to occur in N. Am., but 2 others are found in Mex. 



Stem branched, 15-40 cm. high; involucral bracts acute. 1. B. integri/olia. 



Scapes monocephalous, 3-17 cm. high; involucral bracts obtuse. 2. B. perennis. 



1. Bellis integrifolia Michx. Western Daisy. (I. F. f. 3723.) Slender, 

 diffusely branched, pubescent. Leaves thin, entire, obtuse, the lower and basal 

 ones spatulate, 2-7 cm. long, narrowed into margined petioles, the upper smaller, 

 oblong, oblanceolate or linear; heads 12-30 mm. broad; bracts of the involucre 

 acute or acuminate, scarious-margined. glabrous or nearly so; ravs usually violet, 

 oblong-linear. In moist soil. Ky. and Tenn. to Ark. and Tex. May-July. 



2. Bellis perennis L. European or Garden Daisy. (I. F. f. 3724.) Per- 

 ennial, tufted. Leaves all basal, obovate, obtuse, slightly dentate, 2-5 cm. long, 

 narrowed into margined petioles, pubescent and ciliate; heads 12-25 mrn - broad; 

 rays numerous, linear, white, pink, or purple; bracts of the involucre oblong, ob- 

 tuse, usually purple. In waste places, or occasionally spontaneous on lawns. 



