Sinclairia glabra (Hemsl.) Rydb.

Sinclairia sublobata (B. L. Robinson) Rydberg
Liabum sublobatum B. L. Robinson, Proc. Am. Acad. 51: 539. 1916.
A shrub, with glabrous striate branches, brownish in the inflorescence; petioles about 5 cm. long, scarsely dilated at the base; leaf-blades rhombic-ovate, acuminate, somewhat hastately toothed at their broadest part, otherwise sharply mucronate-dentate, cuneate and decurrent at the base, green and glabrous above, rather loosely tomentose beneath, 1-1.3 dm. long, 7-9 cm. wide, 3-ribbed; panicle 1.5 dm. broad; branches minutely tomentose; heads discoid, about S-flowered; involucre about S mm. high and broad; bracts in four series, puberulent, the outer ovate, acutish, the inner oblong, rounded at the apex; corolla lightyellow, 8 mm. long, the lobes 2 mm. long; pappus-bristles about 6 mm. long, the outer squamellae less than 2 mm. long.
Type locality: San Lucas Toliman. Solola. Guatemala. Distribution : Guatemala and San Salvador.

Sinclairia glabra (Hemsl.) Rydberg
Liabum glabrum Hemsl. Biol. Centr. Am. Bot. 2: 232. 1881.
A shrub, up to 5 m. high, with glabrous thick branches; leaves opposite or verticillate in 3's; petioles 2-3 cm. long, glabrous; leaf-blades lanceolate or ovate, 5-15 cm. long, acuminate at the apex, cuneate at the base, denticulate, triple-ribbed, glabrous on both sides or slightly floccose beneath when young; inflorescence cymose-paniculate, ovoid in outline, with numerous beads; involucre turbinate, 8 mm. high, 8-10 mm. wide, glabrous; bracts imbricate in 3-5 series, striate, the outer ovate, acutish or obtuse, the inner linear, rounded at the apex, elongate; ray-flowers apparently wanting; disk-corollas 7-8 mm. long, the tube gradually expanding into the narrowly funnt-lform throat, the lobes linear-lanceolate, 2 mm. long, in age spreading or reflexed; achenes glabrous or slightly glandular-hispidulous, 10-ribbed; pappus-bristles about 20, scabrous-hispidulous, straw-colored, 5-6 mm. long, the outer squamellae 1 mm. long or less.
Type locality: Cuernavaca, Morelos.
Di m*irnoR Morelo* to Guatemala.

Sinclairia brachypus Rydberg, sp. nov
A shrub, with dark branches, slightly floccose when young; petioles 3-5 cm. long; leafblades about 1 cm. long, rhombic-lanceolate, acuminate at each end, glabrous above, whitetomentose beneath, denticulate; inflorescence dense, paniculate, pyramidal; branches short, ascending; heads discoid, 10-12-flowered; involucre about 7 mm. high, 7-8 mm. broad; bracts in 4 series, the outer ovate, short, the inner linear, obtuse; corollas 6 mm. long, the tube gradually widening into the throat; achenes sparingly hirsute; pappus-bristles brownish, barbellate, 5 mm. long.
Tvpe collected on the upper slopes of Volcan Ipala, Guatemala, January 1907, Pittier 1886 (U. S.Nat. Herb. no. 578282).