STANDLEY—ALLIONIACEAE OF THE UNITED STATES. 367 
1. Mirabilis exserta Brandeg. Proc. Cal. Acad. Sei. II. 3: 165. 1891. 
Specimens examined: 
LOWER CALIFORNIA: Sierra de San I’rancisquito, 1890, Brandegee 480, type; 
La Chuparosa, 1899, Brandegee. 
2, Mirabilis jalapa L. Sp. Pl. 177. 17538. 
Type locality, “In India utraque.” 
Stems glabrous, or slightly puberulent above; leaves ovate, rather narrowly 
so, rather acuminate, semicordate or truncate at the base, sometimes abruptly 
narrowed to the petiole, this very short in the upper leaves; bracts lanceo- 
late, acute, ciliolate, more or less puberulent, the free portion about as long as 
the tube; flowers about 4 cm. long, the tube expanding gradually toward the 
limb, which is about 38 ecm. wide; fruit about 10 mm. long and 5 or 6 mm. thick, 
ovoid, dark brown, 5-angled, glabrous, tuberculate between the angles; tubes of 
the perianths slightly pubescent; stamens exserted. 
Specimens examined: 
FiLoria: Northeast of Key West, 1904, Lansing 2448; Jacksonville, 1899, 
Curtiss 6541. 
Mexico: Durango, 1896, Palmer 631; Saltillo, 1848, Gregg 231, 
PARAGUAY: 1888-90, Morong 622. 
CoLoMBIA: Santa Marta, 1898-1901, H. H. Smith 1824. 
CuBa: Cieneguito, 1895, Combs 286. 
2a. Mirabilis jalapa volecanica Standley, subsp. nov. 
Stems rather slender, strongly angled when dry, with rather soft pubescence 
throughout; leaf blades ovate or narrowly ovate, rather acuminate at the 
apex, subcordate or rounded at the base, with prominent pubescent veins, 
35 to 70 mm. long and 25 to 45 mm. wide; petioles 1 cm. long or less; inflor- 
escence subcymose, the flowers clustered; bracts lanceolate to narrowly tri- 
angular, the free portion about as long as the tube; flowers about 5 cm. long 
and 3 em. broad, the tube slender, red; stamens not much exserted; fruit 8 mm. 
long and 4 or 5 mm. thick, narrowly ovoid, with 5 indistinct ridges, not angled, 
smooth between the ridges and not tuberculate or only faintly so, pubescent 
with short, fine, soft, whitish hairs; tube of the perianth almost or quite 
glabrous; young leaves not ciliolate, but the bracts sometimes sparingly so; 
bracts usually sparingly puberulent. 
This differs from the species in its pubescent and smoother fruit and more 
pubescent stem. Type in herbarium of Field Museum of Natural History; 
cotypes at Missouri Botanical Garden and the University of California; 
collected at pedregal (lava beds), Valley of Mexico, altitude 2,240 meters, 
August 19, 1896, Pringle 6483. Also collected at Durango, 1896, Palmer 
6380, 631. 
2b. Mirabilis jalapa gracilis Standley, subsp. nov. 
Stems very slender, glabrous except for scattered, almost imperceptible 
cinereous pubescence on the youngest branches; leaf blades thin, narrowly 
ovate or broadly lanceolate, long-attenuate, narrowed toward the base into 
a slender petiole 10 to 35 mm. long; leaf blades 55 to 8O mm. long and 20 
to 45 mm. wide; petioles glabrous; bracts linear-lanceolate, acute, free part 
about as long as the tube, the whole 15 mm. long or less; flowers 2 or 3 at 
the ends of the branches, conspicuously peduncled, their tubes slender and 
glabrous; fruit narrowly ovoid, acutish below, 8 mm. long and 4.5 mm. thick, 
5-angled and strongly tuberculate, pubescent with abundant short, yellowish, 
soft hairs, 
