177 
THUNBERGIA alata. 
Wing-petioled Thunhergia. 
DIDYNAMIA ANGIOSPERMIA— Nat. Oed. ACANTHACEJE. 
Gen. Char.— Cfl/. duplex : ext. diphyUus ; int. subduodecim-dentatus. Cor. 
campanulata. Caps, bilocularis rostrata. 
Thunbergia alata ; pubescenti-sericea, foliis cordatis acutis angulatis, 
petioHs alatis, caule volubili. 
Thunbergia alata, Bojer, MSS. 
Stem long, slender, twining, clothed as well as the leaves and calyx, with a 
yellowish, silky, pubescence. Leaves cordate, or cordato-hastate, acute, 
angular at the margin, particularly near the base, with five principal 
and several smaUer nerves, dark green above, paler beneath; petioles as 
long as, or longer than, the leaves, winged on both sides from the base 
to the extremity. 
Peduncles solitary, axillary, opposite, somewhat shorter than the leaves. 
Ext. calyx 2 large ovato-cordate, opposite, pubescent leaves; inner 
one small, embracing the base of the germen with several short irregu- 
lar teeth or segments. Corolla large; tube subcylindrical, broader up- 
wards, not much longer than the outer calyx, deep purple, especially 
within; limb of 5 obcordate, large spreading, yellowish-buff coloured 
segments. Stamens included within the tube *. 
This is a second new species of Thunbergia, which has 
heen discovered by Messrs Helsinborg and Bojeu, and 
communicated by Chaiiles Telfair, Esq. of the Mauritius, 
• Mr Barclay having, along with Th. alala, sent to me the fruit of Th. angulata, 
a snedes given at t. 166. of this work, I here figure and describe it : 
Calsule globose, with a long acuminated beak, surrounded at the base by t^e persis ent 
inner calyx, opening elastically, and with a considerable report, mto two equal 
valves ; 2-ceUed partition of the cells contrary to the valves, membranaceous easily 
separating from the valves, and supporting 4 seeds, which are lateraUy attached, 
two on each side. Seeds half-oval, brown, convex, and wrinkled without : the inner 
side having an oblong smooth depression. 
VOL. IIL 
