386 XCII. SCROPHULARIACEZ (HEMSLEY AND SKAN). [| Buchnera. 
lobes obovate or oblong, 24-3 lin. long, 3-2 lin. broad. Style 1} lin. 
long. Capsule narrowly oblong, 34-2 lin. long; valves recurved. 
Mozamb. Dist. (German East Africa: Kinga (Livingstone) Mountains ;: 
Kirunde Mountain, 6600 ft., Goetze, 899! British Central Africa: Nyasaland, 
Whyte! 
22. B. namuliensis, Shan. Stem erect, 1 ft. high or more, simple 
below, sparingly branched above, quadrangular, few-leaved, puberulous. 
Lower leaves wanting ; upper leaves alternate, linear to linear-lanceo- 
late, up to 1$ in. long and 14 lin. broad, entire, sparingly hispidly 
pubescent. Spikes terminal or sometimes lateral, }—14 in. long, rather 
densely flowered, elongating and becoming lax in fruit ; bracts broadly 
lanceolate, acuminate, 24 lin. long, concave, shortly pilose ; bracteoles. 
linear, 14-14 lin. long, acuminate. Calyx 24-2? lin. long, distinctly 
10-nerved, 5-toothed, somewhat hispidly hairy ; teeth linear-triangular, 
about } lin. long. Corolla-tube about 5 lin. long, narrow, slightly curved, 
very sparingly hairy on the upper part outside; lobes obovate, about 
2 lin. long and 1} lin. broad. Anthers acuminate. Style nearly 2 lin. 
long. Capsule ellipsoid, slightly curved, 2 lin. long, minutely apiculate. 
Mozamb. Dist. Portuguese East Africa: Makua Country: Namuli Hills, 
Last! 
23. B. Welwitschii, Lngl. in Engl. Jahrd. xviii. 70, t. 3, fig. F, 
partly. An erect annual herb 14-1? ft. high or more, sparingly covered 
with slender grey hairs; stem simple or sparingly branched, slender, 
rather leafy; internodes about } in. long at the base, 14-2} in. long 
above. Basal leaves elliptic-oblong, 5-10 lin. long, 4-5 lin. broad, 
obtuse, sparingly and irregularly toothed, scabrid with minute white 
points ; upper leaves opposite or subopposite, sessile, oblong-linear to 
linear, about 14 in. long, 14-2} lin. broad, acute, narrowed at the base, 
entire or minutely few-toothed, somewhat scabrid, grey-pilose. Flowers: 
ina terminal rather crowded spike about 2 in. long; bracts lanceolate, 
3-3} lin. long, concave, pilose ; bracteoles linear or subulate, 14-2 lin. 
long, pilose. Calyx 24-3 lin. long, pilose; teeth unequal, 3-1} lin. 
long, subulate. Corolla deep blue; tube 4} lin. long, sparingly pilose: 
outside, rather densely pilose at the throat inside, cylindric, straight ; 
lobes obovate, 2~24 lin. long, 14-2 lin. broad, the lower larger than the 
upper. Anthers acuminate. Style 1-14 lin. long.—Hiern in Cat. Afr. 
Pl. Welw. i. 776, partly. P 
Lower Guinea. Angola: Humpata Plateau, Welwitsch, 5832! 
Var. elata, Hiern in Cat. Afr. Pl. Welw. i. 776. Stem 2-3 ft. high, more leafy 
than in the type. Leaves oblong to linear-oblong or the uppermost linear, up to 
3 in. long and 4 in, broad, remotely toothed, very scabrid. Corolla pale blue. 
Lower Guinea. Angola: Mossamedes; by the River Maimbo, Welwitsch, 
5827 ! 
24. B. reissiana, Buettner ex Engl. in Engl. Jahrb. xviii. 68, t. 3, 
jig. K. A very slender herb about 14 ft. high; stem simple below, 
sparingly branched above, terete, 4 lin. in diam., few-leaved (about: 
3 pairs at the base and a few small alternate ones near the apex). 
Leaves of the lowest pair oblong-lanceolate, 1 in. long, 3-4 lin. broad, 
