100 NORTH AMERICAN FLORA [VOLUME 33 
veins beneath, or becoming glabrous; petioles 2 mm. long; inflorescence hemispheric or pyra- 
midal, 2—2.5 dm. wide, its branches pubescent or subtomentose; heads mostly peduncled, 
1-flowered; involucre narrowly campanulate, 5 mm. high; outer scales subacute to obtuse, 
minutely cuspidate, almost glabrous, the inner prolonged, thin and scarious above, pale-brown 
or rarely purplish, subacute, rarely minutely cuspidate, glabrous or thinly puberulent; achenes 
hirsute, 2 mm. long; pappus white, 6-7 mm. long, the outer series filiform, irregular, 1-2 mm. 
long. 
TYPE LOCALITY: Sierra Madre northwestern Mexico. 
DISTRIBUTION: Northwestern Mexico. 
14. Eremosis tomentosa (Llave & Lex.) Gleason, Bull. 
N. Y. Bot. Gard. 4: 229. 1906. 
Turpinia tomentosa Liave & Lex. Nov. Veg.. Descr. 1: 24. 1824. 
? Vernonia paniculata DC. Prodr. 5: 23. 1836. 
Monosis tomentosa DC. Prodr. 5: 77. 1836. 
Vernonia purpurascens Schultz-Bip.; Walp. Rep. 2: 945. 1843. 
Vernonia Monosis Schultz-Bip. Linnaea 20: 507. 1847. 
Cacalia tomentosa Kuntze, Rev. Gen. 969. 1891. 
Cacalia paniculata Kuntze, Rev. Gen. 970. 1891. 
Cacalia Monosis Kuntze, Rev. Gen. 970. 1891. 
Eremosis purpurascens Gleason, Bull. N. Y. Bot. Gard. 4: 233. 1906. 
Stems 1-3 m. high, closely and densely gray-tomentose; leaf-blades firm, oblong to oblong- 
ovate, 8-12 cm. long, 4-5 cm. wide, acute, entire, abruptly narrowed to truncate at base, 
pubescent or tomentulose above, densely gray-tomentose beneath, on short petioles; inflores- 
cence hemispheric to pyramidal, leafy, 2-4 dm. long, 1-3 dm. wide; heads sessile or short-pedun- 
cled, 1-flowered; involucre cylindric or narrowly campanulate, 5-6 mm. high; outer scales ovate, 
acute, tomentose or ciliate, the inner oblong, acute, glabrous, or thinly pubescent and glandular 
at the margin and purple apex; achenes 3 mm. long, villous; pappus white, 6-7 mm. long- 
the outer series capillary, irregular. 
TYPE LOCALITY: Pico de Quinceo, near Valladolid [Morelia, Michoacan]. 
DISTRIBUTION: Jalisco and Guanajuato to Oaxaca. 
15. Eremosis Shannoni (Coult.) Gleason, Bull. N. Y. 
Bot. Gard. 4: 234. 1906. 
Vernonia Shannoni Coult. Bot. Gaz. 20:42. 1895. 
Stems arborescent, as much as 10 m. high, the twigs glabrous; leaf-blades thin but firm, 
ovate-lanceolate, 12-14 cm. long, 4-4.5 cm. wide, acuminate, entire, acuminate at base, 
floccose or arachnoid-tomentose on both sides when young, glabrous at maturity, on petioles 
2 cm. long; inflorescence broad, freely branched; heads short-peduncled, 5-—6-flowered; 
involucre narrowly campanulate, 8 mm. high, dark straw-colored or brown; outer scales broadly 
ovate, obtuse or subacute, glabrous on the back, arachnoid-ciliate; inner scales prolonged, 
deciduous, rounded at the tip, ciliate, glabrous or with a little terminal tomentum; achenes 
4 mm. long, glabrous and glandular; pappus white, 7 mm. long, the outer series filiform, 1-2 
mm. long. 
TYPE LOCALITY: Dept. San Marcos, Guatemala. 
DISTRIBUTION: Guatemala. 
16. Eremosis littoralis (Brand.) Gleason. 
Vernonia littoralis Brand. Erythea 7:3. 1899. 
Stems shrubby, slightly pubescent, especially above; leaf-blades broadly ovate, 4-8 cm. 
long, 3-5 cm. wide, short-acuminate, almost entire, obtuse or broadly acute at base, very 
minutely pilose above, softly pubescent and resinous-dotted on the surface beneath and pilose 
with spreading brown hairs on the veins; petioles 1-2 cm. long; inflorescence freely branched, 
essentially leafless, loose and open; heads (7—)8-flowered, on short peduncles; involucre 
broadly turbinate, 7 mm. high; middle and outer scales subacute to acute, mucronate or 
barely apiculate, ciliate; inner scales oblanceolate, 6.5 mm. long, rounded at the apex, al- 
most scarious at the margin, thinly ciliate, minutely puberulent and sparsely resinous on 
