776 LXXXIX. SCROPHULARIACEiE. [BuchnCl'a 



arranged in sessile terminal semi-ellipsoidal bracteate heads which 

 are |^ to f in. long and together form terminal corymbs ; bracts 

 about equalling the calj'x, 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 i 

 to |- in. long or rather more, shortly 5-lobed ; the tube glabrous 

 inside, ribbed or angled ovitside, 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 

 nai-rowly lanceolate, acute, rather small ; pistil about I in. long, 

 glabrous, included ; style ^^ in. long, not very slender ; stigma 

 rather small ; capsule i in. long, glabrous, 2 -celled ; seeds 

 numerous. 



Pi'XGO Andongo. — In the forest between Cazella and Zambe, only 

 one specimen ; fl. and fr. 7 June 1857. No. 5850. 



5. B. ensifolia Engl., I.e., xxiii. p. 511 (1897). 

 Yar. andongensis Engl., I.e., p. 512. 



Prxfio Andongo. — A slender, annual, erect herb, in habit resembling 

 some Strif/a ; 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. Welwitsehii Engl., I.e., xviii. p. 70 (1893). 



PuN(;o Andongo. — An annual 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. 



HuiLLA. — 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 moist sandy places on the Humpata plateau ; fl. April 18G0 

 No. 5833. 



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 }j in. broad ; inflorescence less densely hairy 

 than in the type ; flowei-s pale blue. 



MossAMEDES. — In sandy places at the river Maimbo ; rather rare ; 

 fl. Oct. 1859. No. 5827. 



7. B. angolensis Engl., I.e. 



HuiLLA. — 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 Humpata plateau, near Empa- 

 lanca ; fl. April 1860. No. 5829. 



