Schistocarpha longiligula Rydb.

Schistocarpha longiligula Rydberg, sp. nov
A perennial herb; stem rather densely villous-pillose ; petioles 3-S cm. long, winged only above; leaf-blades ovate to deltoid-ovate, coarsely dentate, acuminate at the apex, abruptly contracted at the base and decurrent on the petioles, pilose on both sides, sparingly and shortly soon the upper side; heads many in a flat-topped panicle; peduncles rather slender ; involucre about 6 mm high and 8 mm. broad; bracts linear, striate, rounded at the apex, glabrate; rayflowers 10-12, the corolla-tube 4 mm. long, the ligule 6-7 mm. long; disk-corollas 4 mm. long; achenes glabrous, 4 mm. long; pappus-bristles white, 3 mm. long.
Type collected at San Miguel Uspanlon, Guatemala, 1892, Heyde &■ Lux 33S3 (Gray Herb.) ■

Schistocarpha seleri Rydberg, sp. nov
A perennial herb; stem more than 1 m. high, finely and sometimes densely hirsute, angled; petioles 2-10 cm. long, connate-clasping at the base, only the upper part winged; leafblades ovate or deltoid, 5-15 cm. long, acuminate, dentate, contracted into a cuneate decurrent base, sparingly or densely short-hirsute on both sides ; inflorescence corymbose-paniculate, with ascending branches; involucre 4 mm. high, 6 mm. wide; bracts in 3 series, elliptic-oblong, ciliolate on the margins, rounded at the apex; paleae of the receptacle 5 mm. long, 3-5-cleft and lacerate, the middle lobe longer; ray-flowers 10-15, the tube of the corolla 3 mm. long, the ligule yellowish, 4 mm. long, oval, fully 2 mm. wide, 4-5-nerved, obtusely 3-4-lobed; diskcorollas 5 mm. long, the tube 2 mm. long, the lobes ovate, 0.5 mm. long; achenes black, glabrous, over 1 mm. long; pappus-bristles 3-4 mm. long.
Type collected in Chiapas, between San Martin and Ococingo, March 13, 1896, Seler 2191 (Herb. N. Y. Bot. Gard).
Distribution: Chiapas and Guatemala.

Schistocarpha longiligula là một loài thực vật có hoa trong họ Cúc. Loài này được Rydb. miêu tả khoa học đầu tiên năm 1927.