195 
THUNBERGIA coccinea. 
Scarlet-flowered Thunbergia. 
DIDYNAMIA ANGIOSPERMIA._Nat. Ord. ACANTHACEjE. 
*■ , 
Gen. Char. — Cal. duplex: ext. diphyllus: int. (subduodecim ?) dentatus. 
Cor. campanulata. Capsula rostrata bilocularis. 
Thunbergia coccinea ; foliis cordato-angulatis, floralibus integerrimis ; 
floribus raceraosis, ore obliquo, limbo reflexo, pedicellis aggregatis, 
caule volubili. 
Thunbergia coccinea, Waluch, MSS. — Graham, in Jameson's Edin. Phil. 
Journ. No. xxvii. p. 150. 
Stems many, from the same root, glabrous, as is the whole plant, branching 
from the base, with the branches axillary, opposite, slightly swollen at 
the joints, climbing to a great height, and twining from left to right, 
green, rounded. Leaves opposite, petioled, delicate light green, paler 
beneath, oblongo-cordate, or even hastate at the base, shortly acuminate 
at the extremity, 5-nerved, and veined: petiole scarcely half so long as 
the leaf, channelled above. Flowering branches 1-2 feet long, pendent, 
their leaves gradually diminishing in size towards the extremity, nearly 
ovato-acuminate and entire. 
Racemes long, terminal, interrupted, secund. Pedicels two-thirds of the 
length of the flowers, two, three, or more, arising in clusters from each 
floral leaf or bractea, stout, and swelling slightly upwards. Outer calyx 
as long as the tube of the corolla, of two large, ovate, purplish-brown, 
striated leaflets, united on one side, so as to form a sharply keeled cym- 
biform sheath or spatha, deciduous. Inner calyx very small, cup- shaped 
green, scarcely toothed at the margin. Corolla tubvilar (scarcely campa- 
nulate), the tube pale red, secreting a large quantity of honey, dilated, com- 
pressed and oblique at the mouth, within yellov.^ ; the limb bright red, 5- 
cleft, the segments obtuse, closely reflexed over the tube and outer calyx. 
Stamens included: filaments inserted near the base, stout, red, com- 
pressed, tapering upwards. Anthers large, sagittate, yellow, the base 
on each side (which is hairy) running down into a reddish-purple spur : 
between the four stamens is a subulate process, probably a fifth abortive 
stamen. Germen ovate, surrounded by a large fleshy disk or ring. Style 
longer than the stamens, filiform. Stigma capitate, notched. 
VOL. III. 
