Buehnera.] xcn. scrophulakiace.e (hemsley and skan). 385 



internodes 7|-10 lin. long. Leaves linear-lanceolate, If -2 in. long, 

 H-2 lin. broad, acute, entire, rather thick, 1-nerved. Flowers in a 

 dense spike, 1^-2 in. long; bracts ovate-lanceolate, 2-2^ lin. long, 1-1 1- 

 lin. broad, glabrous except on the ciliate margin ; bracteoles linear- 

 lanceolate, li-lf lin. long. Calyx 1^-lf lin. long; teeth elongate- 

 triangular, twice shorter than the tube. Corolla-tube 3 A— 4 lin. long, 

 narrowly cylindric, slightly' curved ; lobes obovate-oblong, about 1J lin. 

 long. Capsule ovoid, 1} lin. long. 



Lower Guinea. Angola : Huilla, Antunes. River Palanca, Newton, 190. 



Var. andoiiffensis, Engl, in Engl. Jnhrb. xxiii. 512. Leaves sparsely white 

 pilose, especially on the margin and nerves. Calyx-teeth distinctly ciliate. Corolla- 

 tube rather densely pilose. — J^ieru in Cat. Afr. PL Welw. i. 776. 



lower Guinea. Vngola : Pungo Anclongo ; on the highest mountains of the 

 Presidium, Welwitsch^ 5882 !. 



20. B. latibracteata^ ,$fe#&|u Apparently a tall erect annual herb ; 

 stem (upper part alone seen) slender, branched, sjgaj^ftgly a^d minutely 

 pilose ; branches alternate or subopposite, arcuate, slenc^er, terete, about 

 9 in. long, scantily leafy ; .internodes %#~A lin. long] Upper Reaves 

 narrowly linear, up to 2f in. long, acute, sca^gid, sometimes densely 

 -covered with scabrid white points. Flowers in slender cylindric ter- 

 minal spikes 1-4 in. long on peduncles l|—6 in. long; bracts broadly 

 ovate to suborbicular, about 1 lin. long and nearly 1 lin. broad, abruptly 

 and shortly acuminate, pilose, thick, slightly concave ; bracteoles lanceo- 

 late, f lin. long, concave, pilose. Calyx 2J lin. long, pilose ; teeth subu- 

 late to narrowly deltoid, |— f lin. long. Corolla blue ; tube 4 lin. long, 

 cylindric, slightly curved, pilose outside and at the throat inside; lobes 

 obovate, 2j-2£ lin.. long, If- If lin. broad. Anthers acuminate. Style 

 li lin. long. Capsule oblong, 2f lin. long, bisulcate, apiculate. — - 

 B. Welwitschii, Engl, in Engl. Jahrb. xviii. 70, partly ; Hiern in Cat. 

 Afr. PI. Welw. i. 776, partly. 



lower Guinea. Angola: Pungo Audongo; near Lombe and Condo, Wel- 

 witsch, 5817 I Calunda Mangue, Wehuitscli, 5859 ! 



21. B. crassifolia, Engl, in Engl. Jahrb. xxx. 403. Rhizome 

 short, thick, subtuberous. Stems 1 or 2, simple or branched from the 

 base, 1-1 f ft. long, somewhat densely leafy, minutely and bifariously 

 pubescent ; internodes lf-Jf in. long. Basal leaves oblong, If in. long, 

 5 lin. broad, 3-nerved ; cauline leaves alternate, somewhat fleshy, linear 

 to linear-lanceolate, f-lj in. long, f— If lin. broad, acute or obtuse, 

 narrowed at the bajse, entire, glabrous. Spikes solitary or more often 

 ternate, f-1 } in. long, on peduncles 10 lin. long, rather loose; lateral 

 spikes smaller than the terminal ; bracts lanceolate from a broad base, 

 3-5 lin. long, 1-1^ lin. broad, ciliate ; bracteoles linear or linear-lanceo- 

 late, acute, a little shorter than the bracts. Calyx 3-4^- lin. long, 

 4-toothed, sparingly and minutely pubescent, somewhat scarious ; teeth 

 elongate-triangular, |-lf lin. long. Corolla bright blue, white at the 

 throat, densely and shortly white-pilose ; tube 5-6 lin. long, \ lin. 

 broad, straight, cylindric except at the somewhat funnel-shaped throat ; 



VOL. IV. — SEC. 2 2 c 



