394 XC. SCROPHULARIACEH (HEMSLEY AND SKAN). [| Buchnera. 
43. B. leptostachya, Benth. in DC. Prodr. x. 497. A somewhat 
slender erect herb 1-2} ft. high, usually branched in the upper part, 
glabrescent or very sparingly sprinkled with minute hairs, often scabrid 
with minute white points on the leaves; stems and branches terete, 
with long internodes. Lower leaves elliptic, oblong or obovate, up to 
3 in. long and 1} in. broad, obtuse ; upper leaves from linear-oblong to 
linear, 1-1} in. long, 14-4 lin. broad, obtuse or acute. Flowers in 
loose interrupted terminal spikes often from 6—9 in. long, very shortly 
pedicellate; bracts ovate-lanceolate, ovate or ovate-elliptic, 14-2} lin. 
Jong, acute or acuminate, concave, shortly hairy or glabrous except on 
the ciliate margin; bracteoles linear to linear-lanceolate, 3-2 lin. long, 
acute, otherwise as the bracts. Calyx 2}-4} lin. long, 10-ribbed or 
-nerved, 5-toothed, nearly glabrous except for a few hairs on the teeth; 
teeth narrowly deltoid to linear-triangular, }—1} lin. long, acute. 
Corolla dull blue purple or white ; tube 23-4 lin. long, glabrous or with 
a few short hairs near the throat outside, pilose inside, straight, 
cylindric ; lobes obovate, 3-14 lin. long, 3-1 lin. broad. <Anthers 
acute. Style 3-1} lin. long. Capsule narrowly oblong, 23-34 lin. long, 
minutely apiculate.— Vatke in Oest. Bot. Zeitschr. 1875, 11. 3B, mossam- 
bicensis, Klotzsch in Peters, Reise Mossamb. Bot. 224, t. 34; Vatke in 
Linnea, xliii. 309. B. mossambicensis, var. usafuensis, Engl. in Engl. 
Jahrb. xxx. 404, 
Upper Guinea. Senegambia, Lepriewr, 7! 613! Gambia, Brown-Lester, 
42! French Guinea: Wallia, Scott-Elliot, 4266! Northern Nigeria: Nupe, 
Barter, 907! 
Wile Land. British East Africa : Ribe to Galla Country, Wakefield ! 
Mozamb. Dist. Zanzibar: Hokotoni, Hildebrandt, 1127! German East 
Africa: Dar-es-Salaam, Hildebrandt, 1221! Usafua; Songwe Valley, 3600 tt., 
Goetze, 1053. Portuguese East Africa: Kerimka Islands, Peters. British Central 
Africa: Nyasaland; Fort Hill, Tanganyika Plateau, 3500-4000 ft., Whyte! 
44. B. speciosa, Skan. An erect branched rather rigid under- 
shrub, perhaps the largest-flowered species of the genus, drying black ; 
stem up to 4 ft. high, terete, often glaucous, sparingly pubescent 1n 
places and densely bifariously pubescent in others or glabrescent, scabrid 
here and there with the much-thickened bases of small hairs; branches 
erect-spreading, slender, opposite or subopposite, glaucous, quite gla- 
brous or sparingly covered with short fine hairs thickened at the base. 
Leaves opposite or subopposite, distant, lanceolate or oblanceolate, up to 
1} in. long and 4} lin. broad, narrowed to the base, very slightly narroweé 
at the apex, minutely apiculate, entire, covered with stiff adpresse 
hairs on both sides, often with a tuft of smaller leaves in their axils. 
Spikes or racemes interrupted, terminal, up to 9 in. long ; flowers mostly 
in pairs }—} in. apart, shortly pedicellate ; bracts ovate-lanceolate, about 
3 lin. long, 1 lin. broad at the base, shortly acuminate, thinly covered 
with short stiff hairs on the upper side, sparingly ciliate ; bracteoles 
linear-lanceolate, 2-2} lin. long. Calyx 5} lin. long, 1} lin. broad above, 
slightly narrower below, somewhat curved, glabrous outside, pled 
with short stiff adpressed hairs on the upper part inside, 10-ribbed ; 
