PaRT 1, 1922] CARDUACEAE: VERNONIEAE 97 
ciliate, the inner acute, glabrous; achenes thinly pubescent; pappus white, the bristles 5 mm. 
long. 
TYPE LOCALITY: Sierra Madre, northwestern Mexico. 
DISTRIBUTION: Western Mexico. 
4. Eremosis ovata Gleason, Bull. Torrey Club 40: 331. 1913. 
Vernonia Gleasoni S. F. Blake, Contr. Gray Herb. 52:17. 1917. 
Stems shrubby, closely cinereous-pubescent, or tomentulose in the inflorescence; leaf- 
blades thick, firm, ovate to ovate-elliptic, 7-10 cm. long, 4-5 cm. wide, obtuse or subacute, 
entire, obtuse at base, dull-green and minutely and softly tomentulose above, densely cinerous- 
tomentose beneath, the veins elevated beneath and prominent; petioles 8-13 mm. long; 
inflorescence broadly pyramidal to hemispheric, about 2 dm. wide, the bracteal leaves elliptic, 
2-6 cm. long; heads 3-flowered or more often 4-flowered, in small clusters, on peduncles 2—5 mm. 
long; involucre narrowly campanulate, straw-colored or pale-brown, 5—6 mm. high; outer scales 
short, broadly ovate, obtuse to subacute and apiculate, irregularly arachnoid or tomentose; 
inner scales oblong or ovate-oblong, acute, glabrous or thinly arachnoid-tomentose at the tip; 
achenes pale-brown, 3 mm. long, thinly hirsute; pappus white, 8 mm. long, the outer series 
of flattened bristles 1-2 mm. long. 
TYPE LOCALITY: San Ramon, Durango. 
DISTRIBUTION: Durango. 
5. Eremosis oolepis (S. F. Blake) Gleason. 
Vernonia oolepis S. F. Blake, Contr. Gray Herb. 52: 20. 1917. 
Stems frutescent, branched, prominently striate, thinly tomentulose, or glabrate in 
age; leaf-blades thin, ovate-lanceolate to elliptic-lanceolate, 6-9 cm. long, 2.5—3.5 cm. wide, 
acuminate, entire, tapering to an acute base, dark-green and essentially glabrous above, 
pale-green and thinly brown-tomentose beneath, the lateral veins concealed when young, 
becoming prominent in age; inflorescence elongate-pyramidal or subcylindric, of numerous 
rounded clusters terminating the lateral branches; heads 4-flowered, sessile or short-peduncled; 
involucre brown, narrowly campanulate, 6 mm. high, the outer scales broadly ovate, rounded, 
tomentulose, the inner prolonged, broadly obtuse or rounded, puberulent on the back, arach- 
noid-ciliate, dark-spotted at the apex; achenes thinly strigose, brown to nearly black, 2.5 mm. 
long; pappus pale-brown, 5—6 mm. long, the outer series filiform, irregular, 0.5-1.5 mm. long. 
TYPE LOCALITY: Izamal, Yucatan. 
DISTRIBUTION: Yucatan. 
6. Eremosis salicifolia (DC.) Gleason, Bull. N. Y. 
Bot. Gard. 4: 231. 1906. 
Monosis salicifolia DC. Prodr. 5:77. 1836. 
Vernonia uniflora Schultz-Bip. Linnaea 20: 506. 1847. 
Vernonia salicifolia Schultz-Bip. Linnaea 20: 507. 1847. 
Stems freely branched, covered with a thin gray area tomentum; leaf-blades narrowly 
oblong-lanceolate or elliptic-lanceolate, 4-8 cm. long, 1—2 cm. wide, acute or subacute, entire 
or slightly undulate, gradually narrowed below into a petiole 4-6 mm. long, glandular-punctate 
or thinly tomentose on both sides; lateral veins ascending, with tufts of brown tomentum in 
their axils; inflorescence hemispheric; heads 1-flowered, on peduncles 1-3 mm. long; involucre 
campanulate, 6 mm. high; scales ovate to oblong, acute or subacute, purplish, the outer thinly 
tomentose, the middle and inner glabrous or with a terminal tuft of tomentum; achenes 
villous, 2.5 mm. long; pappus nearly white, 6 mm. long, the outer series capillary, irregular, 
about 2 mm. long. 
Type LocaLity: ‘“Guchinapa”’ [? Guchilaque, Morelos]. 
DISTRIBUTION: Southern Mexico, from Jalisco and Veracruz to Oaxaca. 
7. Eremosis pallens (Schultz-Bip.) Gleason, Bull. N. Y. 
Bot. Gard. 4: 228. 1906. 
Vernonia pallens Schultz-Bip. Pollichia 18-19: 161. 1861. 
Eremosis leiophylla Gleason, Bull. N. Y. Bot. Gard. 4: 231. 1906. 
Vernonia leiophylla S. F. Blake. Contr. Gray Herb. 52:18. 1917. 
