Tagetes palmeri A. Gray

Tagetes palmeri A. Gray, Proc. Am. Acad. 21: 392. 1886
A leafy perennial; stems 3-10 dm. high, branched, frutescent below, glabrous; leaves opposite, pinnate; leaflets 7-15, linear-lanceolate, 1-4 cm. long, glabrous, acuminate, sharply serrulate, with a single gland at the base of each tooth ; heads corymbose-f astigiate ; peduncles 2-4 cm. long, slightly thicker above; involucre broadly campanulate, 6-7 mm. long, and nearly as broad; bracts 8-10, with triangular tips, and with two lateral rows of 3 glands and a single one in the tip; ray-flowers 5-8; ligules obovate-oblong, 10-12 mm. long, orange; disk-flowers many; corollas glabrous, 5 mm. long; tube much shorter than the throat; achenes 4-5 mm. long, puberulent; 2 of the squamellae subulate, the other 2 or 3 shorter, quadrate, truncate.
Type locality: Halfway between Batopilas and the Cumbre, Chihuahua. Distribution: Known only from the type locality.

Tagetes alamensis Rydberg, sp. nov
A tall annual or perennial; stem strict, finely puberulent, often tinged with purple; leaves opposite 5-1 cm. long, pinnate; rachis with scattered callous-tipped teeth; leaflets 7-9, linearlanceolate, puberulent or glabrate above, more or less pubescent, especially on the veins beneath, 1-4 cm. long, distantly serrate with cuspidate teeth, with a gland at the base of each tooth, rarely with z few additional scattered ones; heads few, cymose; peduncles 2-4 cm. long; involucre campanulate, turbinate at the base, about 8 mm. long and 5 mm. broad; bracts 8-10, with deltoid obtuse tips, and with two marginal rows of about 4 glands each and a single gland in the free portion; ligules orange, 12-14 mm. long, 5-6 mm. wide; disk-flowers many; corollas 6 mm. long, greenish-yellow at the base, orange above; tube short, glabrous; throat elongate-funnelform, pubescent; lobes lanceolate, pubescent; achenes 5 mm. long, glabrous; squamellae very unequal, one subulate, 4-5 mm. long, 1 or 2 linear, acute, 2-2.5 mm. long, and the rest truncate, about 1 mm. long.
Tvpe collected in Sierra de Alamos, near Alamos. Sonora. March. 1910, Rose, Standley cr= Russell herb. N. Y. Bot. Card. .

Tagetes palmeri là một loài thực vật có hoa trong họ Cúc. Loài này được A.Gray miêu tả khoa học đầu tiên năm 1886.