380 XCII. SCROPHULARIACE (HEMSLEY AND SKAN). | Buchnera, 
flowered ; bracts ovate-lanceolate or triangular, 13-1? lin. long, 4-3 lin. 
broad, long white-pilose on the back and margins ; bracteoles filiform, 
about } lin. jong, pilose. Calyx 24 lin. long, rather densely pubescent, 
10-nerved (5 thick nerves alternating with 5 thin ones), 5-toothed; 
teeth narrowly triangular, acuminate, }—3 lin. long. Corolla violet- 
blue; tube 4 lin. long, narrow, straight or slightly curved, white-pilose 
outside; lobes obovate, 14-1} lin. long, 1-1} lin. broad. Anthers 
acute. Capsule oblong, 2 lin. long. 
Lower Guinea. Angola: Huilla; by the River Palanca, Newton! 
7. B. angolensis, Hngl. in Engl. Jahrb. xviii. 70, t. 3, figs. G, H. 
A slender erect freely branched annual 4-12 in. high, sparingly and 
minutely pubescent ; stem and branches somewhat obscurely tetragonal ; 
branches ascending, growing out at an acute angle with the stem. 
Leaves opposite or subopposite, narrowly linear, acuminate, }-1} lin. 
long, 3-1 lin. broad, sprinkled over with small rather hispid haus. 
Flowers in dense terminal somewhat quadrifarious spikes 5-6 iin. long ; 
lowermost bracts very broadly ovate, 14 lin. long, 2 lin. broad, with a 
terminal subulate tail-like appendage 2}~3} lin. long, pilose, ciliate ; 
upper bracts rhomboid-orbicular, 13 lin. long, 14-1} lin. broad, acute or 
shortly acuminate, scarious, ciliate, concave; bracteoles narrowly 
obovoid-spathulate, about 1 lin. long, obtuse, otherwise as the upper 
bracts. Calyx about 1} lin. long, ovoid, scarious, very irregularly and 
obscurely 4- or 5-toothed, fimbriate-ciliate. Corolla violet-blue, very 
small; tube 14-1} lin. long, sparingly pilose outside, pilose inside ; limb 
only about } lin. across; lobes oblong, about } lin. long. Anthers 
searcely acute. Style } lin. long. Capsule ovoid, 1} lin. long, apiculate. 
—Hiern in Cat. Afr. Pl. Welw. i. 776. 
Lower Guinea. Angola: Huilla; Humpata Plateau, near Empalanea, 
Welwitsch, 5829! 
8. B. minutiflora, Lngl. in Engl. Jahrb. xxx. 404. An annual 
herb 4-6 in. high, blackish when dry, minutely and sparsely pilose ; 
stem slender, sparingly leafy, simple or branched above, more rarely 
branched at the base and middle; internodes 74-10 lin. long. B 
leaves oblong, about 4 lin. long and 2 lin. broad ; cauline leaves linear, 
10 lin, long, $ lin. broad, acute, spreading. Spikes terminal on the 
stems and branches, 3—74 lin. long and broad, few- or many-flowered ; 
bracts spreading, lanceolate from a concave base, about 4 lin. long; 
bracteoles narrowly linear, 14-2 lin. long. Calyx 2}-8 lin. long, some 
what scarious, shortly and ‘sparsely pilose, 5-toothed ; teeth lineer- 
triangular, acute, $ lin. long. Corolla small, violet; tube 3 lin. long, 
cylindric, narrow ; lobes oblong-obovate, up to 1 lin. long and $ lin. 
broad, slightly unequal. Style about 3 lin. long. Capsule narrowly 
oblong, 24 lin. long, nearly 1 lin. broad at the base, slightly narrower 
and rounded at the apex, minutely apiculate. 
Mozamb. Dist. German East Africa: Kinga Mountains; Ukwama Mountain, 
8200 ft., Goetze, 912! 
9. B. splendens, Zngl. in Engl. Jahrb. xviii. 71, t. 3, fig.T. An 
