130 MISSOURI BOTANICAL GARDEN. 
short elliptical below to oblong above, smooth, obtuse or 
occasionally acute, somewhat fleshy, mucronate, erose den- 
ticulate, especially above, or entire, 4 to 6 mm. wide, 8 to 
20 mm. long, very short petioled, those on sterile branches 
crowded, oblong linear, more blunt at apex; umbel leaves 
ovate lanceolate, cordate, 10 mm. wide, 20 mm. long, or 
less, reflexed or spreading; floral leaves broadly ovate, 
usually cordate, subpandurate, mucronate, sometimes 
slightly pubescent, 9 to 13 mm. wide, 11 to 14 mm. long ; 
involucre 3 mm. high, 2 to 3 mm. wide, hirsute inside onthe . 
lobes and below the glands ; lobes obtuse or truncate ; glands: 
short stipitate, yellowish brown, semicircular, with horns of 
varying length usually incurved, often long dentate between ; 
bracts broader than in related species, lacerate; stamens 
large and numerous, anthers conspicuous at time of flower- 
ing; capsule depressed ovoid, subcordate at base, distinctly 
narrowed below the apex, 5 mm. long, 6 mm. wide; sulci 
broad and obtuse; styles 1.5 to 2 mm. long, united about 
half their length, stigmas large, clavate, recurved more than 
usual; seeds oblong conical, truncate at both ends, the base 
very broad and flat, greenish gray to dark brown, covered 
with large very shallow pits to almost smooth, 2.6 to 3.5 
mm. long, 2.2 to 2.8 mm. wide; caruncle conical.— South- 
ern Arizona and New Mexico and northern Mexico. — Often 
proliferous or producing foliage shoots from the umbel. — 
Plate 47. 
Specimens examined from New Mexico (Wright, Copper Mines, 1820, 
1851, a small piece in Dr. Millspaugh’s herbarium from Boissier’s her- 
barium, is certainly the same as the specimens of this number in American 
herbaria, the seeds are not quite smooth; Greene, Silver City, 123, 1880; 
Rusby, Bear Mts., 381, 1881) ; Arizona (Toumey, Chiricahua Mts., 6, 1894; 
Wilcox, Ft. Huachuca, 1891, 1893; Wheeler, 1871-72, or from Nevada? ; 
Toumey, Flagstaff, 252, 1892; Nealley, Rincon Mts., 141, 1891; Palmer, Bill 
Williams Mt., 1869; Rothrock, Willow Springs, 2138, 1874; Lemmon, 
Huachuca Mts., 1882, a slender form; Pringle, Huachuca Mts., 1884, 
Santa Rita Mts., 1881, some of the specimens are pubescent, slender, 
and smaller seeded; Rusby, Mogollon Mts., 378, 1881; Buckminster, 
approaching Z#. campestris); Mexico (Hartman, 762, 1891; Smith, San 
Luis Mts.). 
46 
