Tas. 8604. 
THUNBERGIA Gipson. 
Tropical East Africa. 
ACANTHACEAE. Tribe THUNBERGIEAE. 
Tuunperata, Linn. f.; Benth. et Hook. f. Gen. Plant. vol. ii. p. 1072. 
_Thunbergia Gibsonii, S. Moore in Journ. Bot. vol. xxxii. 1894, p. 131; 
species 7’. alatae, Boj., affinis, sed floribus majoribus intense aurantiacis 
facillime distinguenda. 
Herba perennis, volubilis, 11 dm. alta, caulibus teretibus:pilis longis patentibus 
vel leviter recurvis instructis. Folia ovata, apice acuta, basi sagittato- 
cordata, usque ad 7°5 cm. longa et 6 cm. lata, costa cum nervis lateralibus 
pagina superiore leviter impressa, inferiore prominente, utrinque aspera ; 
petiolus circiter 8 cm. longus, leviter alatus, margine pilis patentibus 
instructus. Flores axillares, solitarii, pedunculo 10°5 cm. longo hirsuto- 
pubescente suffulti; bracteolae 2, attenuato-ovatae, apice acutae, basi cor- 
datae, 3-3°5 cm. longae, 2 cm. latae, extra ferrugineo-hirsuto-pubescentes, 
intus glanduloso-pubescentes. Calyx cupularis, lobis circiter 12, extra 
glanduloso-pubescens, intus glaber, 5 mm. altus, 8. mm, diametro, basi 
epicalyce plano irregulariter lobato glanduloso instructus. Corollae tubus 
_curvato-cylindricus, inferne abrupte angustatus, antice bisulcatus, circiter 
8°5 cm. longus, apice 1°3 cm. diametro, basi 3 mm. diametro, intus lineis 
duabus hirsutis ornatus; limbus aurantiacus, lobis 5 patentibus ovato- 
triangularibus apice truncato-emarginatis, antico et lateralibus 2°2 cm. 
longis 2°1 cm. latis, posticis 1°9 cm. longis 1°9 cm. latis. Stamina 4, 
4 mm. supra tubi basem inserta, filamentis longioribus 1°3 cm. longis, 
brevioribus 1 cm. longis, antheris 6°5 mm. longis basi pilis citroneis 
instructis; pollinis granula globosa. Discus eupularis, 0°75 mm. altus, 
oblique productus. Ovariwm late ovoideum, medio constrictum, 2°5 mm. 
altum, usque ad 8 mm. diametro, glabrum, viride; stylus 1-9 cm. longus, 
superne leviter glandulosus et pubescens; stigma 3 mm. longum, 
bilobatum, lobo antico 5 mm. lato, postico 4 mm. lato,—W. B. TURRILL. 
The striking Thunbergia which forms the subject of our 
illustration is a native of tropical East Africa. The 
specimens on which the species, T. Gibsonii, was based 
are in the national collection at the British Museum, 
Cromwell Road, where they were received from a 
locality on the equator, approximately 36° 70’ east of 
the meridian of Greenwich, at an elevation of about 
8000 feet above sea-level. Both as regards the corolla 
and bracteoles these original specimens, which consist of 
Aprit, 1915, 
