Buttonia. | XCII. SCROPHULARIACEE (HEMSLEY AND SKAN). 439 
1. B. Hildebrandtii, Hngl. Jahrb. xxiii. 509, ¢. 11, A—C. A 
half-shrubby or herbaceous, glabrous climber. Stems slender, flexible 
smooth. Leaves (only the uppermost ones of flowering-branches seen) 
opposite, petiolate, ovate-spathulate, about an inch long, pinnatifid or 
3-(-toothed. Flowers axillary, solitary in the axils of the reduced 
leaves or bracts. Pedicels 4-3 in. long. Bracteoles 2, nearly close 
under the calyx, ovate or spathulate, 2-3 lin. long. Calyx inflated, 
about } in. across and 3 in. deep; lobes erect, triangular, acute, 14-2 lin, 
long. Corolla obliquely funnel-shaped, 14 in: long and across; tube 
inflated above the middle ; lobes rounded, spreading, the two upper- 
most smallest. Stamens included. Style recurved, persisting long 
after the fall of the corolla. 
Nile Land. British Hast Africa: Tuaita; by the Voi River, Hildebrandt, 
2493. 
In the Kew Herbarium there are two fragmentary specimens which probably 
belong to this species. One is from Kilimanjaro (Jodnston), and the other from 
Kikumbuliu, in British East Africa (Scott-Elliot, 6364). Johnston’s specimen has 
been named B. natalensis, McKen (Oliy. in Trans. Linn, Soc. ser. 2, Bot. ii. 343), 
but its flowers are less than half the size of those of that species. 
48. THUNBERGIANTHUS, Engl. in Engl. Jahrb. xxiii. 509, t. 11, 
D—F. (Thunbergiopsie). 
Calyx campanulate 5-toothed, upper and lateral teeth nearly equal, 
apiculate,‘the two lower connate into one with two points. Corolla-tube 
obliquely funnel-shaped, bulging behind and rough inside; limb nearly 
equally 5-lobed ; lobes semicircular. Stamens 4, didynamous, anticous 
pair longer than the posticous ; filaments smooth ; anthers attached by 
their tips; cells unequal, the sterile much smaller than the fertile. 
Ovary seated ina shallow disk, ovoid, 2-celled ; placentas thick, bearing 
numerous ovules ; style slender, curved downwards, thickened towards 
the top. Capsule ovoid, 2-celled, exceeding the calyx. Seeds (linear, 
cuneiform, testa hyaline 2). 
Species 1, endemic. 
1. T. Quintasii, Zngl. in Hngl. Jahrb. xxiii. 509, t. 11, Df. B. 
climbing herb with zigzag somewhat flattened stems; internodes 1}-2} in. 
long. Leaves opposite, petiolate; lower ones larger, cordate-ovate, 
23-3 in. long and 2-2} in. broad, unequally and coarsely 4-toothed on 
each side, long-acuminate, acute ; upper ones ovate-lanceolate, entire ; 
petiole 4-1 in. long, clothed with very small prickles. Flowers axillary, 
solitary, pedicellate ; pedicels 1-1} in, long. Calyx about 3 in. long. 
Corolla about 1} in. long and broad; lobes about { in. long, lower 
slightly reflexed. Stamens included. Style slightly longer than the 
corolla-tube. Capsule exceeding the calyx. 
Island of St. Thomas: Angolares, Quintas, 15. oe 
n in the Kew Herbarium from Wim, Uganda 
though the calyx 
Lower Guinea. 
There is a very imperfect specime i 
(Scott-Elliot, 7919), which apparently belongs to Thunbergianthus, 
1s Nearly equally 5-lobed, and the lobes about as long as the tube. 
