The Kew plant of B. rugosa was raised from seeds sent, 
as stated above, by Dr. Ernst in 1872, and which flowered 
in the Palm House in October, 1889. 
Dzscr. A climbing shrub, covered except the corolla 
externally with soft spreading hairs, and sparingly with 
shorter glandular pubescence; branches slender, terete. 
Leaves bifoliolate ; petiole one to one and a half inches long, 
rather slender, ending in a bifid tendril, petiolules about 
half that length; leaflets three to four inches long, oblong, 
acuminate, base rounded or cordate, yellow green; beneath 
rugose with six to eight pairs of strong nerves and reticu- 
late nervules. Flowers in small shortly peduncled axillary 
cymes, shortly pedicelled. Calyx two-thirds of an inch 
long, campanulate with a truncate quite entire mouth. 
Corolla primrose-coloured ; tube two to two and a half 
inches long, subcylindric, slightly curved, constricted 
towards the base, glabrous except the constricted part, 
which is laxly hairy within ; limb slightly oblique, short, five- 
lobed ; lobes subequal, spreading, the two upper orbicular 
concave, the three lower broadly obcordate. Stamens four, 
included ; filaments long, arched, slender, glabrous; anthers 
of each pair parallel, cells divaricate, narrow; staminode 
filiform. Disk broadly conical, smooth, glabrous. Ovary 
small, oblong, two-celled, many-ovuled; style very slender, 
stigma small, two-fid. Capsule compressed, apiculate, 
four to five inches long. Seeds uniseriate near the margin 
on each side of the Septum, transversely oblong, one an 
a half inches broad, compressed, surrounded by a complete 
wing.—J. D. Bt. 
Fig. 1, Calyx cut open, showing the disk and ovary style and stigma; 2, : 
corolla laid open; 3 and 4, top of filaments and anthers ; 5, vertical section of 
ovary and disk :—all enlarged. 
