in the axils of the branches; the strigose pedicels during 
anthesis about 1 cm. long becoming elongated and re- 
flexed with age; prismatic calyx tube 5-toothed at the 
apex and keeled along the angles, glabrous on both sides, 
about 6 cm. long; the calyx teeth ovate-lanceolate, 1.7— 
2 em. long and 0.5 cm. wide at the base; corolla funnel- 
shaped, plicate, terminating in a 5-dentate orifice, up to 
9.5 em. long; the five corolla teeth setiform, about 5 
mm. long and 2 mm. wide at the base, each of them sup- 
ported by three conspicuous nerves, the median one ex- 
tending to the tip; exterior of the corolla tube glabrous, 
the interior pubescent from the base up to the point 
where the filaments are attached to the corolla tube, then 
becoming glabrous above this point; the five stamens 
free, epipetalous, attached to the corolla tube at approx- 
imately the same level about 3 cm. from the base of the 
corolla; filaments glabrous except near their attachment 
to the corolla, 2.8 em. long; anthers about 6 mm. long 
with filamentous trichomes along the lines of dehiscence; 
style 7.8 cm. long; calyx circumscissile, forming a re- 
flexed frill, up to 1.3 cm. long, which subtends the fruit ; 
capsule globose, about 2 cm. long, regularly dehiscent 
by four valves, pendent on pedicels up to 2.2 cm. long; 
fruits covered with stiff, sharply pointed spines; surface 
of fruit puberulent, spines glabrous; seeds reniform, 
about 5 mm. long and 4 mm. broad, with lunate lacunae 
on the lateral faces and with a triple ridge along the con- 
vex edge which forms a cord-like margin around the seed. 
Mexico: State of Sinaloa, vicinity of Culican, Sept. 14, 1904, 7.S. 
Brandegee s.n. (Type: UC 103947). 
Datura reburra is similar to D. discolor Bernh. in hav- 
ing both nodding fruit and regularly dehiscing capsules. 
It is, however, readily distinguishable by its distinctive 
seeds, its puberulent fruit with glabrous spines and its 
[ 259 J 
