572 PROCEEDINGS OF THE AMERICAN ACADEMY. 
Cestrum flavescens. Shrub, about 1 m. in height: stems covered 
with a light grayish bark, the young shoots finely pubescent: leaves 
ovate to ovate-elliptic, 3 to 5 em. long, one half to two thirds as broad, 
obtuse, narrowed at the base into a slightly winged petiole (5 to 10 mm. 
in length), more or less pubescent on either surface, especially on the 
veins beneath: inflorescence subracemose at the ends of the branches; 
peduncles and sometimes the pedicels apparently adnate to the base of 
the petioles: calyx about 5 mm. long, 5-lobed; tube glabrous or slightly 
puberulent; lobes triangular-ovate, a little irregular, 1 to 1.5 mm. long, 
acute, tomentulose at the tips: corolla 2 to 2.5 cm. long, reddish-yellow, 
tubular, gradually ampliated above, constricted at the throat, glabrous; 
lobes broadly ovate, about 2 mm. long, obtuse, pubescent along the 
margins, reflexed: stamens included, glabrous: immature fruit glabrous. 
— Collected by C. G. Pringle, in lava fields near Cuernavaca, State of 
Morelos, altitude 1500 m., 11 May, 1898, no. 6832. 
In general appearance this species bears a superficial resemblance to 
the Guatemalan ©. Regelit, Planch. Fl. Serres, ix. t. 946; but from the 
latter Mr. Pringle’s plant is amply different, in the less acuminate 
leaves, the shorter and broader calyx-lobes, and finally in the longer 
and more slender corollas. 
PirHECOCTENIUM BUCCINATORIUM, DC. Prodr. ix. 195. Bignonia 
buecinatoria, Mairet in DC. 1. c.; Hemsl. Biol. Cent.-Am. Bot. ii. 490; 
Hooker in Bot. Mag. t. 7516. ; 
In 1878 Parry and Palmer collected in the mountains of San Luis 
Potosi both flowering and fruiting specimens of this species, and later 1 
1880 complete specimens were secured by Prof. Dugés in the vicinity of 
Guanajuato. The characters of the fruit, hitherto unknown, clearly in- 
dicate that the affinity of the plant is with the genus Pithecoctentum and 
not with Bignonia. The following supplementary description may be 
given: capsule oblong-elliptic, 1.4 to 1.6 dm. in length, about 6 cm. 
broad, somewhat narrowed at either end and densely echinate overt the 
entire surface; valves at maturity falling away from the replum: seeds 
disposed in 4 to 5 rows. To this species may be referred specimens from 
the following stations: San Luis Potosi, Parry & Palmer, no. 695, 
Schaffner, no. 746; vicinity of Guanajuato, Dugés (coll. of 1880), with- 
out number; Puebla, Bilimek, no. 230, and by the same collector at 
“ Cakobaya,” no. 229; and in the cultivated state at Orizaba, Bottert, ne 
915, and A. Gray (coll. of 1885), without number. 
Ruellia malacosperma. Perennial, conspicuously lineolate through- 
out: “Stems 3 to 5 dm. high, erect or ascending from a ligneous base, te- 
