Schistocarpha platyphylla Greenm.

Schistocarpha kellermanii Rydberg, sp. nov
A perennial herb; stem 1 m. high or more, angled and strongly grooved, coarsely hirsute; petioles 5-10 cm. long, connate at the base, hirsute, scarcely winged except the upper part; leaf-blades broadly ovate, 1-1.5 cm. long, 8-10 cm. broad, decidedly hirsute on both sides, acuminate, densely dentate with mucronate teeth; panicles terminal and from the upper axils, rounded, dense; ultimate peduncles short, densely hirsute; involucre about 8 mm. high and 1 cm. broad; bracts lanceolate or linear-lanceolate, acute, hirsute on the back or the innermost only ciliate on the margins; paleae of the receptacle 5-7 mm. long, irregularly 3-cleft, the middle lobe only a little longer; ray-flowers rather few, the corollatube slightly, if at all, pubescent, more than half as long as the style, with or without a minute ligule ; disk -flowers numerous; corolla 6 mm. long, the tube pubescent, 2.5 mm. long, the throat subcylindric, the lobes ovate, 0.5 mm. long; achenes glabrous, fully 1.5 mm. long; pappus-bristles 5 mm. long.
Tvpe collected on the Volcano Agua, Guatemala, February 4, 1908, W. A. Kellerman 7293 (herb N. Y. Bot. Gard.).
Distribution: Central Guatemala.

Schistocarpha platyphylla Greenm. Field Mus. Publ. Bot. 2: 274. 1907.
A stout herb; stem terete, striate, glabrous or slightly pubescent above; petioles connate at the base; leaf-blades ovate, 10-25 cm. long, 6.5-22 cm. broad, acuminate at the apex, sinuatedentate, subcordate to cuneate at the base, decurrent on the petioles, triple-nerved, sparingly pilose on both sides, slightly paler beneath; inflorescence cymose-paniculate, corymbiform, with pubescent branches and subsctaceous bracts; involucre narrowly campanulate, 7-8 mm. high; bracts in 3 series, Iancc-oblong, obtuse or obtusish, straw-colored, striate, glabrous; paleae of the receptacle hyaline, siibc innate, 3 mm. long, irregularly 3-5-toothed; pistillate Som en about 13; corolla tubular, 2 mm. long, pubescent externally; disk-flowers 14-18; corolla about 5 mm. long ; tube pubcnilrnt , gradually expanding into the throat ; acheues I nun. long, glabr-.u .,t paringly pul>escint.
TmuUUTT: Santa Mini. Dcpf Cjw< /altenango, Guatemala. • mala.

Schistocarpha platyphylla là một loài thực vật có hoa trong họ Cúc. Loài này được Greenm. miêu tả khoa học đầu tiên năm 1907.