ParT 1, 1922] CARDUACEAE: VERNONIEAE 99 
tomentulose; heads crowded, 1-flowered, sessile or short-peduncled; involucre narrowly 
campanulate, 6-7 mm. long; outer scales ovate to ovate-lanceolate, sharply acute, thinly and 
irregularly puberulent, the inner prolonged, purple or rarely straw-colored, not scarious, gradual- 
ly narrowed to a sharply acute or acuminate tip, thinly arachnoid, puberulent and resinous 
near the apex, usually prominently mucronate; achenes densely hirsute, 2 mm. long; pappus 
white, 7-8 mm. long, the outer series filiform, irregular. 
TYPE LOCALITY: Sierra:-Madre, northwestern Mexico. 
DISTRIBUTION: Western Mexico. 
11. Eremosis foliosa (Benth.) Gleason, Bull. N. Y. Bot. 
Gard. 4: 228. 1906. 
Monosis foliosa Benth. Pl. Hartw. 19. 1839. 
Vernonia foliosa Schultz-Bip. Pollichia 18-19: 161. 1861. Not V. foliosa Gardn. 1846. 
Vernonia mucronata S. F. Blake, Contr. Gray Herb. 52:19. 1917. 
Stems shrubby, freely branched, finely and closely gray-tomentose, becoming glabrate with 
age; leaf-blades firm, rather rigid, oblong-obovate, 4-7 cm. long, 1.5—4 cm. wide, broadest above 
the middle, acute or abruptly short-acuminate, entire or sharply denticulate with low callous 
teeth, narrowed to an acute base, puberulent to thinly tomentose with crooked hairs or be- 
coming glabrate with age above, silvery-puberulent beneath and finely reticulate, not resinous, 
the lateral veins prominent, curved-ascending; petioles 3-8 mm. long; inflorescence compact, 
depressed or short-pyramidal, 5—10 cm. across, the branches closely tomentose; heads 1-flowered, 
sessile or short-peduncled; involucre narrowly campanulate, 7-8 mm. high; scales thin but 
not scarious, purple, at least at the tip, the outer ovate, subacute, irregularly tomentose, the 
inner prolonged, acute, frequently short-mucronate, thinly arachnoid, resinous at the tip; 
achenes densely hirsute, 2 mm. long; pappus white, the bristles 6 mm. long, the outer series 
filiform, 1-2 mm. long. 
Type LocaLity: [Bolanos, Tepic.] 
DISTRIBUTION: Tepic to San Luis Potosi. 
12. Eremosis obtusa Gleason, sp. nov. 
Stems shrubby, slender, thinly and loosely white-tomentose, becoming tardily glabrate 
in age; leaf-blades thin, oblong-elliptic, 5—7 cm. long, 2-3.5 cm. wide, the upper gradually 
smaller, abruptly narrowed to an acute, cuspidate tip, entire, or rarely denticulate with low 
callous teeth, acute at base, dark-green, finely pubescent, and resinous above, dull-green and 
loosely cinereous-tomentose beneath, the lateral veins curved-ascending, the veinlets obscure; 
petioles 4-8 mm. long; inflorescence compact, short-pyramidal, 7-9 cm. wide, the branches 
tomentose; heads crowded, 1-flowered, sessile or with peduncles 1-2 mm. long; involucre 
narrowly campanulate, 6 mm. high; scales thin but not scarious, brown or purple, at least at 
the tip, the outer ovate, obtuse or rounded, tomentose, the middle and inner prolonged, 
gradually narrowed to an obtuse or rounded tip, glabrous or nearly so on the back, prominently 
ciliate, resinous near the apex; achenes glabrous or nearly so, resinous, brown, 2 mm. long; 
pappus white, 7 mm. long, the outer series filiform, irregular, much shorter; corolla-tube 
glandular, the lobes puberulent. 
Type collected at Minas de Rafael, San Luis Potosi. July 1911, Purpus 4811 (herb. N.Y. 
Bot. Gard.) 
DISTRIBUTION: Known only from the type locality. 
13. Eremosis Steetzii (Schultz-Bip.) Gleason, Bull. N. Y. 
Bot. Gard. 4: 230. 1906. 
Vernonia Steetzii Schultz-Bip.; Seem. Bot. Voy. Herald 297. 1856. 
Cacalia Steetzii Kuntze, Rev. Gen. 970. 1891. 
Stems stout, shrubby, pubescent or subtomentose; leaf-blades thin, broadly ovate or 
ovate-elliptic, 6-12 cm. long, 3.5—5 cm. wide, broadest below the middle, subacute to short- 
acuminate, denticulate with low callous teeth, acute to rounded at base, minutely puberulent 
and sparsely resinous above, paler green, distinctly resinous, and short-pubescent along the 
