Buchnera.\ xcn. scrophulakiace,e (hemsley and skan). 379> 



rigid, minutely and sparingly pubescent. Flowers in terminal crowded 

 quadrifarious spikes |— 1 in. long ; bracts broadly ovate- or elliptic- 

 rhomboid, 2-J-2f lin. long, l^-lty lin. broad (sometimes almost 3-lobed 

 at the apex, che lateral lobes rounded, the middle lobe cuneate), acumi- 

 nate, rigid, partly scarious, glabrous except for a few minute stiff hairs- 

 on the margin at the apex ; bracteoles linear-lanceolate, If lin. long, 

 keeled. Calyx 2|— 2£ lin. long, deeply 4-toothed, 4-nerved, scarious 

 between the nerves, more deeply slit down on the lower side, glabrous 

 except for a few minute hairs on the teeth ; teeth 1-1|- lin. long, subu- 

 late-lanceolate. Corolla-tube 2f— 4 lin. long, very narrow, straight or 

 slightly curved, cylindric, glabrous outside, pilose inside ; upper lobefr 

 elliptic to obovate, 1-1-J- lin. long, § lin. broad ; lower lobes 2-3 lin. 

 long, 1-lh lin. broad, oblong. Anthers acuminate. Style f-f lin, 

 long. Capsule oblong, 1 J lin. long, apiculate. 



Mozarab. Dist. German East Africa : between Lakes Tanganyika and Rukwa,. 

 6000 ft., Nutt ! Lower plateau, north of Lake Nvasa, Thomson ! British Central 

 Africa : Urungu ; Fwambo, Carson, 100 ! Nyasaland ; Kondowe to Ivaronga, 2000- 

 6000 ft., Whytel Nyika Plateau, 6000-7000 ft., Whyte, 146 ! 



5. B. ciliolata, Engl, in Engl. Jahrb. xviii. 69, t. 3, figs. C, D. A 

 very small and slender erect annual herb about 5 in. high, branched 

 chiefly from the base ; stem and branches almost filiform, terete, glabrous,, 

 sparingly leafy. Leaves opposite or subopposite, linear, 4-9 lin. long, 

 about \ lin. broad, acute, glabrous or with a few scabrid white points. 

 Flowers in terminal crowded ovoid spikes 3-6 lin. long ; bracts ovate. 

 1|~1^ lin. long, acute or acuminate, sometimes minutely toothed and 

 somewhat scarious at the apex, glabrous, concave ; bracteoles narrowly 

 linear, § lin. long, glabrous. Calyx 1|— If lin. long, bipartite,. 

 4 -toothed, 4-nerved, scarious between the nerves ; teeth ovate-lanceo- 

 late, f lin. long, acuminate. Corolla-tube 2| lin. long, straight,. 

 cylindric, glabrous outside, covered with short reddish hairs inside :. 

 lobes oblong, IJ-l \ lin. long, |-§ lin. broad, often emarginate or bifid 

 at the apex, somewhat pulverulent inside, the lower longer than the 

 upper. Anthers acute. Style scarcely A lin. long. Capsule oblong, 1A 

 lin. long, minutely apiculate, bisulcate. — Hiern in Cat. Afr. PL Welw. 

 i. 775; Engl. & Gilg in Baum, Kunene-Samb. Exped. 366. 



Lower Guinea. Angola: Huilla; by the River Palanea, Newton! on the 

 Humpata Plateau, JFelwitsch, 5828 ! by the River Kubango, above Kohi, 4400 ft.,. 

 Baum, 914! 



6. B. humilis, Skan. A small slender erect annual herb about 9' 

 in. high ; stem simple or simple below and sparingly branched above,, 

 terete, sparsely pilose, few-leaved ; branches nearly erect, 3-5 J in. long ; 

 internodes 1^-2^ in. long. Lower leaves opposite, oblong to lanceolate,. 

 8-14 lin. long, 2|— 4 lin. broad, obtuse or apiculate, narrowed at the- 

 base into a very short petiole, sparingly pubescent, very scabrid, some- 

 times having 1 tooth on each side above the middle ; upper leaves- 

 opposite or alternate, linear-lanceolate or linear, ^-l£ in. long, £-2 lin. 

 broad, acute, sparingly pubescent, scabrid, entire. Spikes terminal (or 

 sometimes on short lateral branches as well), 7-8 lin. long, densely- 



