496 PROCEEDINGS OF THE AMERICAN ACADEMY, 
1.5 cm. long, mucronate, entire or appressed-serrulate, glabrous or 
sparingly pilose-setulose; the lower equalling the capillary petioles, 
the upper short-petioled: flowers few, terminal and axillary, on pedicels 
2 cm. or less in length: involucre short-campanulate, 2 mm. long ap- 
pressed-setulose, the deltoid-oblong truncate erose lobes incurved ; g. aids 
4, dark, with pale oblong-lanceolate blunt appendages 1 to 1.5 mm. long; 
false gland similar: capsule rugulose, 4 mm. high: seed oblong-ovoid, 
minutely puncticulate, gray or gray-green, mottled with olive or brown.— 
Moretos, on mossy ledges of Sierra de Tepoxtlan, alt. 2,310 m., Sept. 3 
12, 1900 (C. G. Pringle, no. 8443). 
E. (Cyttarospermum) calcicola. Anpual, freely branching, 5 or 
6 dm. high, the slender stem and branches viscid-setulose with long pale 
hairs: leaves broad-ovate, rounded or bluntish at tip, truncate or sub- 
cuneate at base, the lower 2 cm. long, the upper much smaller, setulose 
on both faces, dark above, pale beneath, about equalling the capillary 
petioles: flowers axillary on capillary pedicels 1 to 1.5 cm. long: im 
volucre broad-campanulate, green and yellow, 1 mm. long, the short 1n- 
curved cuneate lobes lacerate; glands 4 with 3 finger-like appendages 5 
the false gland slightly larger, with 4 appendages: ovary glabrous. — 
GUERRERO, limestone mountains above Iguala, alt. 1,230 m., Oct. 5, 
1900 (0. G. Pringle, no. 8398). Closely related to Z. astrovtes, BF. & 
M., but the stem conspicuously setulose, and the pedicels much longer. 
E. tancirorta, Schl., var. villicaulis. Stems more or less villous 
with crisp jointed hairs: leaves rhombic-ovate, acutish, green and lucid 
above, pale and more or less villous beneath: involucre campanulate, 
pilose or glabrate, 3 or 4 mm. long; lobes truncate, serrate ; glands 1 or 
2 associate, hoof-shaped; false glands 8, columnar, truncate, one-third 
longer than the lobes: capsule (young) pilose, 5 mm. long, with rounded 
lobes: seed (young) short-oblong, 2 or 2.5 mm. long, pale brown. — 
CHIAPAS, mountain-slope above Ococingo, March 13, 1896 (C. & E. 
Seler, no. 2214). Distinguished from the species by its pubescence, 1?° 
volucral lobes, and false glands. In Z. lancifolia the involucral lobes are 
fimbriate, equalling or slightly exceeding the subulate false glands. 
Perne ovata. Branches pale brown, minutely puberulent fF 
glabrate: leaves ovate, short-petioled, 1 to 1.5 cm. long, pale and mr 
nutely canescent-tomentulose toward the rounded base; margins finely 
appressed-serrate, the youngest glandular-ciliate, as are the lower faces 
of the young leaves: inflorescences axillary, subsessile, all the par's 
glabrous, the deciduous bracts sometimes with erose margins: flower 
ing calyx 3 mm. long, cleft half-way to the base into deltoid smooth- 
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