Bonamia.] xo. coNVOivULACEiE (baker and rendle). 79 



areas not sharply defined. Stamens and styles included ; filaments 

 dilated and hairy below ; anthers oblong with cordate base. Disc 

 inconspicuous or absent. Ovary 2-celled, 4-ovuled, hairy at the apex 

 (in African species); style (in African species) with two unequal 

 branches bearing two globose stigmas. Capsule 2-celled, 4-seeded, 

 opening by 4 valves. Seeds glabrous. — African species shrubby 

 climbers with oblong to lanceolate short-stalked leaves, and dense 

 usually many-flowered cymes (few-flowered in B. minor). 



About 30 species, widely distributed in the tropics ; 3 in Tropical Africa. 

 Stems clothed with brown hairs. 



Bracts large ; flowers blue . . . . . 1. B. mossambicensis. 



Bracts small ; flowers white . . . . . 2. £. cymosa. 



Stems glabrous . . . . . . . . 3. B. minor. 



1. B. mossambicensis, Hallier f. in Engl. Jahrb. xviii. 91. A 

 climber with woody stems, clothed with brown hairs. Leaves sub- 

 coriaceous, shortly petioled, elliptic, oblong, subobtuse, mucronate, 1-2 

 in. long, 5-10 lin. broad, thinly pubescent above, densely coated with 

 brown hairs beneath ; petiole 2-8 lin. long. Peduncles axillary, many- 

 flowered, about as long as the cymes ; bracts large, elliptic to obovate, 

 acute, 6 lin. long and 8 lin. broad, covered on back and margin with a 

 rusty tomentum. Sepals thinly glumaceous, elliptic-oblong, acute, 

 unequal, the outer 3 lin. long, glabrous except the apex. Corolla 

 bright blue, campanulate-funnel-shaped, 9 lin. long, not distinctly 

 lobed. Ovary hairy at the apex, 2-celled, 4-ovuled ; style unequally bifid 

 above the middle ; stigmas obovate, globose, granulate. Capsule and 

 seeds unknown. — Hallier, f. in Bull. Herb. Boiss. v. 996 ; Dammer in 

 Engl. Pfl. Ost-Afr. C. 328. Breweria buddleoides, Baker in Kew 

 Bulletin, 1894, 69. Prevostea mossambicensis, Klotzsch in Peters, Reise 

 Mossamb. Bot. 244, t. 39. 



Mozamb. Dist. German East Africa : Usaramo; Dar es Salem, StuMmann, 

 8467 ; Kisserawe, StuMmann, 6178 ; and without precise locality, StuM.mann, 105, 

 6166 ; by the Eovuma River, Kirk ! Portuguese East Africa : Rio de Sena 

 Peters. 



2. B. cymosa, Hallier f. in Engl. Jahrb. xviii. 91. A woody 

 climber, reaching 12 ft. long ; stems slender, terete, densely clothed 

 with short brown hairs. Leaves oblong to oblong-lanceolate, sub- 

 coriaceous, shortly petioled, 1-3 in. long, obtuse with mucronulate 

 apex, rounded at the base, green and glabrous above with sunk nerves 

 when dry, matted with brown hairs and with prominent nerves beneath. 

 Cymes dense, many-flowered, usually secund on short peduncles or 

 congested into a terminal panicle ; bracts minute ; pedicels short, 

 silky. Sepals oblong-lanceolate to ovate, shortly acuminate, 4 lin. 

 long, the inner slightly shorter, glumaceous, ferruginously silky on 

 the back. Corolla white, twice as long as the calyx, obscurely lobed, 

 ferruginously silky except on the commissural areas. Style bifid only 

 above the middle. Capsule globose, rigid, glabrous, as long as the 

 calyx. Seeds black, glabrous. — Hallier f. in Bull. Herb. Boiss. v. 

 996. Breweria secicnda, Benth. in Hook. Niger Fl. 470. Convolvulus 



