Part 1, 1922] CARDUACEAE: VERNONIEAE 101 
the back, pale straw-colored with green midvein; achenes broadly turbinate, glabrous; pappus 
white, fragile, deciduous, 5.5 mm. long, the outer series filiform, 1-1.3 mm. long. 
TYPE LOCALITY: Socorro Island, Colima. 
DISTRIBUTION: Socorro Island. 
17. Eremosis Heydeana (Coult.) Gleason, Bull. N. Y. 
Bot. Gard. 4: 234. 1906. 
Vernonia Heydeana Coult. Bot. Gaz. 20:42. 1895. 
Stems shrubby or arborescent, the branches puberulent or glabrate; leaf-blades elliptic 
to ovate, 8-10 cm. long, 4.5—6 cm. wide, acute or abruptly short-acuminate, entire or remotely 
denticulate, acute at base, thinly subpapillose-puberulent or glabrous above, thinly tomentu- 
lose and resinous beneath; petioles 1-2 cm. long; inflorescence hemispheric to pyramidal; 
heads 3-flowered, crowded, on short tomentose peduncles; involucre narrowly campanulate, 
6 mm. high; outer scales short, blunt, ovate, conspicuously tomentose-ciliate; inner scales 
prolonged, brown with green center, obtuse or subacute, glabrous on the back, with thin, 
- scarious, glabrous or finely ciliate margin; achenes brown, 3 mm. long, glabrous or minutely 
glandular; pappus white, deciduous, 6 mm. long, the outer series filiform, 1-2 mm. long. 
TYPE LOCALITY: San Miguel Uspantan, Quiché, Guatemala, alt. 1800-3600 meters. 
DISTRIBUTION: Southern Mexico and Guatemala. 
18. Eremosis leiocarpa (DC.) Gleason, Bull. N. Y. 
Bot. Gard. 4: 232. 1906. 
Vernonia leiocarpa DC. Prodr. 5: 34. 1836. 
Cacalia leiocarpa Kuntze, Rev. Gen. 970. 1891. 
Stems shrubby or arborescent, the twigs tomentose when young, becoming glabrate in 
age; leaf-blades ovate-lanceolate to ovate, 8-14 cm. long, 2-6 cm. wide, acute, entire or dentate, 
narrowed at base, puberulent to nearly glabrous above, densely cinereous-tomentose beneath, 
on petioles 1.5 cm. long; inflorescence large, leafy, pyramidal, 1.5—2 dm. long and wide; heads 
very numerous, densely aggregated, sessile or minutely pedunculate, mostly 3- (rarely 4-7-) 
flowered; involucre cylindric or narrowly campanulate, 4-5 mm. long; outer scales broadly 
triangular-ovate, obtuse, densely tomentose, the inner oblong, tomentose only at the tip; 
corolla-tube hairy, its lobes one-fifth as long as wide; achenes pale-brown, glabrous, 2.5—-3 mm. 
long, turbinate, with 3 principal ribs and some smaller intermediate ones; pappus white, 
6-7 mm. long, the outer series filiform, 1-3 mm. long. 
TYPE LOCALITY: Mexico. 
DISTRIBUTION: Southern Mexico and Guatemala. 
19. Eremosis melanocarpa Gleason, Bull. N. Y. Bot. 
Gard. 432325 1906>: 
Vernonia melanocarpa S. F. Blake, Contr. Gray Herb. 52:18. 1917. 
Stems shrubby or arborescent, the twigs densely tomentose when young, becoming thinly 
tomentose or glabrate in age; leaf-blades ovate or ovate-lanceolate, 7-11 cm. long, 3-4 cm. 
wide, acute or acuminate, entire or undulate, narrowed at base, scabrous-pubescent or thinly 
tomentose above, densely cinereous-tomentose beneath, especially along the veins; petioles 
1.5-2.5 cm. long; infiorescence pyramidal, terminating the stem and upper branches, with a 
few bracteal leaves; heads mostly 3- (rarely 4—6-)flowered, crowded, sessile or nearly so; 
involucre narrowly campanulate, 3-4 mm. high; scales all obtuse or rounded, the outer 
broadly ovate or triangular, densely tomentose, persistent, the inner oblong, tomentose at 
apex and margin, early deciduous; corolla-tube 2.5-4 mm. long, glabrous, its lobes one-fourth 
as long as wide; achenes 2.5 mm. long, glabrous, dilated above, dark-purple or black; pappus 
white, 6 mm. long, the outer series filamentous, 1-3 mm. long. 
TYPE LOCALITY: Dept. Santa Rosa, Guatemala. 
DISTRIBUTION: Southern Mexico and Guatemala. 
