26 XCVIII, ACANTHACEX (BURKILL). [ Thunbergia.. 
Var. auriculata, S. Moore in Journ, Bot. 1880, 195. Leaves auricled at the base: 
or more or less cordate.— TZ. lancifolia, var. pallida, 8. Moore, loc. cit. 
Lower Guinea. Angola: Huilla; Lopollo, in sandy thickets, Welwitsch, 5011 f. 
Monino, in thickets, Welwitsch, 5012 ! 
50. T. hyalina, S. Moore in Journ. Bot. 1880, 195. Stem erect, 
1-23 -ft. high, glabrous, striate when dry. Leaves sessile, amplexicaul,. 
oblong, obtuse or acute, glabrous and shining on both surfaces, entire, 
scabrid on the margins, firm. Flowers solitary, on short peduncles. 
about 5 lin. long; bracteoles oblong-lanceolate, acute, 5-nerved, scabrid. 
Calyx short, truncate. Corolla glossy purple, very similar to that of 
T. lancifolia ; tube orange, and about 1} in. long. Anthers with a. 
mucro at the apex, hairy at the base; the lower pair with one lobe 
spurred at the base. Stigma funnel-shaped, triangular, barbellate. 
Lower Guinea. Angola: on rocky hills, near the River Cuanza, Welwitsch, 
5164 ! 
Certainly very close to 7. lancifolia; the stamens are not glabrous, as stated in the 
original description. 
51. T. cerinthoides, Radli:f. in Abhandl. naturw.Ver. Bremen, viii. 
434, Stem glabrous except at the nodes, quadrangular, sulcate when 
dry. Leaves oblong or obovate-elliptic, 2 in. long, ? in. wide, obtuse: 
or somewhat acute, cordate at the base, almost sessile, entire, firm, 
glabrous but for short hairs on the margin. Flowers on peduncles 
about 7 lin. long; bracteoles ovate-lanceolate, somewhat oblique, 1 1n.. 
long, } in. wide, acute, 3-nerved, hirsute with glandular hairs outside, 
glabrous within, except at the tip. Calyx very short, sinuate-dentate. 
Corolla-tube 1} in. long, yellow, glandular; lobes violet. Anthers 
mucronate above, pilose; the inner pair each with one spur. Stigma 
funnel-shaped, triangular, barbellate. 
Lower Guinea. Angola: Malange, Mechow, 373. 
This species may prove only to be a form of 7’. hyalina, with larger flowers, and 
somewhat less glabrous, The distinction in the stamens which Radlkofer mentions. 
fails, for T. hyalina was incorrectly described in this particular. 
52. 'T. gentianoides, Radlkf. in Abhandl. naturw.Ver. Bremen, viii- 
433. Stem herbaceous, 3-4 ft. high, quadrangular, glabrous, except 
at the nodes, sulcate when dry. Leaves narrowly lanceolate, about 
24 in. long, $ in. wide, acuminate above, subcordate below, sessile,. 
glabrous. Flowers on peduncles 3-14 in. long; bracteoles obliquely 
ovate or ovate-lanceolate, 1 in. long, 5 lin. broad, rather acute, 3-nerved. 
Calyx very short, with a few blunt teeth, puberulous at the base. 
Corolla-tube 14-14 in. long, somewhat orange, glandular; lobes blue.. 
Anthers all mucronate above and hairy below, the ventral pair with 
one curved spur each at the base. Stigma funnel-shaped, triangular, 
barbellate. 
Lower Guinea. Angola: Malange, Mechow, 195. 
53. T. stellarioides, Burkill. Stem erect, glabrous, sulcate when 
dry. Leaves linear, sessile, acute or somewhat obtuse, glabrous, 1} in- 
