APPENDIX 1373 



3b. Polypterla Reverchonil (Bush) Small. Stems 4-8 dm. tall, minutely soft- 

 strigillose: leaf -blades linear-lanceolate to linear, 3-6 cm. long, rough, 3-ribbed, short- 

 petioled; peduncles sparingly glandular: heads 6-12-flowered : involucres narrowly 

 turbinate; bracts linear to linear-oblanceolate, 8-12 mm. long, the inner ones purp- 

 lish: disk corollas 13-14 mm. long: ray deep-pink: achenes .5-6 mm. long. [Othale 

 Beverchonii Bush.] — Differs from P. Hookerianu in the few-flowered heads with 

 only 3-6 ray-flowers and the narrowly turbinate involucres. 



In dry, often sandy, soil, eastern Texas. Fall. 



Page 1289, after Tetraneuris linearis, insert: 



3. Tetraneuris acaulis (Pursh) Greene. Perennial, copiously pubescent. Cau- 

 dex branched, the branches tufted: leaves densely crowded; blades spatulate to 

 linear-spatulate, 1-7 cm. long, with very long hairs at the dilated bases: scapes erect, 

 8-22 cm. tall, simple: involucral bracts oblong or nearly so, 5-7 mm. long, obtuse, 

 densely pubescent: ligules of the ray-flowers cuneate to obovate-cuneate, 9-14 mm. 

 long: pappus-scales about 2.5 mm. long, the awn nearly or quite as long as the body. 

 — Differs from T. linearis in the broader copiously hairy leaf -blades and the larger 

 leaf -bases. 



In dry or stony soil, Saskatchewan to Nebraska, Oklahoma, New Mexico and Arizona. 



Page 1294, before Boebera, insert: 



126a. TAGETES L. 



Annual, or rarely perennial, strong-scented caulescent herbs. Leaves mostly 

 opposite: blades pinnately divided. Heads erect. Involucre narrow: bracts partially 

 united. Eay-flowers several, the corollas with elongated tubes and broad colored, 

 often variegated, ligules. Disk corollas elongated, the slender tube and narrow throat 

 about equal in length. Achenes elongated, flat and somewhat 4-augled. Pappus of 

 unequal narrow scales. — Differs from Boebera in the well-united involucral bracts and 

 the few short-fringed pappus-scales. Marigold, 



1. Tagetes er^cta L. Plants mostly 2-3 dm. tall, the branches ultimately more 



or less decumbent: leaf -divisions linear, elliptic or oblong, mostly 1-2 cm. long, 



sharply serrate: peduncles markedly clavate: involucres 15-18 mm. long; lobes ovate: 



ligules obovate, orange or pale-yellow: disk-corollas 11-14 mm. long; lobes lanceolate: 



achenes nearly linear, 8-9 mm. long, about as long as the pappus-scales. 



In sandy soil, peninsular Florida. All year. Naturalized from tropical America. 

 African Marigold. 



126b. CHRYSACTfNIA A. Gray. 



Perennial caulescent resinous-aromatic shrubs. Leaves alternate, numerous: 

 blades thick, narrow, entire. Heads radiate, showy. Involucres narrow: bracts in 

 one series, distinct. Eeceptacle small, naked. Kay-flowers fruit -producing: ligules 

 long, conspicuous. Disk-flowers numerous: corollas with a short tube and a longer 

 throat. Anthers entire at the base or nearly so. Stigmas of the disk-flowers 

 elongated. Achenes narrow. Pappus of numerous very slender bristles.— Differs 

 from Boebera in the distinct involucral bracts and the prominently ligulate ray. 



1. Chrysactinia Mexic^na A. Gray. Plants 3.5 dm. tall or less, much- 

 branched: leaf -blades linear or clavate, 0.5-1 cm. long, abruptly pointed, with round 

 oil-glands: heads slender-peduncled : bracts of the involucre linear to linear-lanceolate, 

 4-5 mm. long, each with a large oil-gland below the apex: ligules of the ray yellow, 

 6-10 mm. long: achenes 3-3.5 mm. long, shorter than the pappus. 



In rocky soil, southern Texas and adjacent Mexico. Spring and summer. 



Page 1303, after Senecio Eugelia, insert: 



la. Senecio vulgaris L. Annual, sparingly pubescent. Stems 5 dm. tall or 

 less, hollow, corymbosely branched: leaf -blades mostly 1 dm. long or less, pinnately 

 parted, the lobes and rachis toothed, the terminal lobe relatively small: heads sessile 

 or short-peduncled: involucres 6-8 mm. long; bracts narrow, acuminate: ligulea 



