776 LXXXIX. SCROPHULARIACES. | Buchnera 
arr, emged in sessile terminal semi-ellipsoidal bracteate heads which 
are + to 2 in. long and together form terminal corymbs ; bracts 
about equalling the calyx, oblong or ovate, glabrous inside, ciliate, 
somewhat hispid on the back, the hairs whitish; bracteoles 
narrower, about equalling the calyx or its tube, ciliate ; calyx 5 
to 1 in. long or rather more, shortly 5-lobed ; the tube glabrous 
inside, ribbed or angled outside, some of the ribs or angles ciliate ; 
the teeth lanceolate or ovate-lanceolate, ciliate, somewhat 
unequal ; corolla tubular, the tube rather slender, straight or 
somewhat curved near the apex, as long as the calyx ; the limb 
rather small, 5-lobed ; stamens 4, didynamous, inserted about the 
middle of the corolla- tube, glabrous ; filaments short; anthers 
narrowly lanceolate, acute, rather small; pistil about ba in. long, 
glabrous, included ; style ;', in. long, not very slender ; stigma 
rather small; capsule } in. long, glabrous, 2-celled; seeds 
numerous. 
Pungo ANDoNGO.—In the forest between Cazella and Zambe, only 
one specimen ; fl. and fr. 7 June 1857. No. 5850. 
5. B, ensifolia Engl., /.c., xxiii. p. 511 (1897). 
Var. andongensis Engl., /.c., p. 512. 
Punco AnponGo.—A slender, annual, erect herb, in habit resembling 
some Strigw ; the whole plant quickly turning black in drying ; stem 
undivided below, oppositely branched above, pilose with short hairs ; 
leaves linear, sub- erect, bright green, shortly pilose ; flowers blue. In 
rocky pastures on the highest mountains of the presidium; fl. and 
young fr. May 1857. No. 5882. 
6. B. Welwitschii Engl., /.c., xviii. p. 70 (1893). 
Punco ANDONGO.—An aside erect herb, turning bluish black in 
drying ; flowers blue. In moist meadows and sandy thickets near 
Lombe and Condo ; fl. and fr. March 1857. No. 5847. At Calunda 
Mangue; fl.and fr. No. 5859. 
Huiitita.—An annual erect slender herb, simple or very rarely 
branched ; radical leaves rosulate ; corolla deep blue, the limb 5-cleft, 
the two upper lobes a little shorter than the rest, all flat and obtuse. 
In coe sandy places on the Humpata plateau; fl. April 1860 
No. 5832. 
Var. elata. 
An erect annual herb 2 to 3 ft. high; stem simple and leafy 
below ; the lower leaves oblong, remotely toothed, very scabrid, 
about 2 in. long by } in. broad ; inflorescence less densely hairy 
than in the type ; flowers pale blue. 
MossaMEDES,—In sandy places at the river Maimbo ; rather rare ; 
fl. Oct. 1859. No. 5827. 
od 
7. B. angolensis Engl., /.c. 
HviL__a.—An annual erect slender herb, 4 to 12 in. high, branched 
from the base, the whole plant turning black in drying ; stem and 
branches tetragonal ; leaves bright green; flowers arranged in tetra- 
gonal species; corolla violet-blue, the tube rather long, the limb 
5-cleft. In elevated pastures on the Humpaia plateau, near Empa- 
lanca; fl. April 1860. No. 5829. 
