364 CII. LABIATE (BAKER). [ Acrocephalus. 
texture. Fruit-calyx 1-} in. long; lobes very small. Corolla pro- 
truding 5}, in. from the throat of the calyx. Stamens exserted. 
South Central. Congo Free State : between Nyangwe and Kimbundu, Pogge, 
1014. 
34, A. angolensis, Giirke in Engl. Jahrb. xix. 198. Stems 
simple, erect, 3-4 ft. long, densely clothed with spreading hairs ; inter- 
nodes very long. Leaves shortly petioled, oblong-lanceolate, acute 
3-4 in. long, 1-14 in. broad, narrowed to the base, crenate, sparsely 
villous on both sides. Heads few, subglobose ; outer bracts 3-4, rhom- 
boid or lanceolate-deltoid, crenate, pilose on both sides; flower-bracts 
rhomboid-cuneate, twice as long as the calyx ; pedicels short. Flower- 
calyx under a line long; lobes round, glabrescent, ciliate. Corolla } in. 
long ; tube 3-4 times the length of the calyx; lobes villous outside. 
Lower Guinea. Angola: Malange, Mechow, 358. 
35. A. divaricatus, Briquet in Bull. Soc. Bot. Belg. xxxvil. 10. A 
tall branched perennial herb, with divaricate branches thinly clothed 
with crisped hairs. Leaves shortly petioled, oblong, $—1 in. long, acute 
or subobtuse, crenate, green and clothed with crisped hairs on both 
surfaces. Heads globose-cylindrical, reaching } in. long; outer bracts 
foliaceous ; flower-bracts broadly rhomboidal, } in. long. Calyx finally 
% in. long, with a few spreading hairs; lips both entire. Corolla pale 
lilac; tube } in. long; lips shorter than the tube. Stamens exserted. 
Lower Guinea. Congo, in marshes, Dewevre. 
36. A. paniculatus, Briquet in Engl. Jahrb. xix. 172. Stem 
robust, branched, clothed with short adpressed firm hairs. Leaves 
shortly petioled, oblong-lanceolate, 14-24 in. long, }-} in. broad, sub- 
acute or subobtuse, narrowed to the base, regularly and closely crenate, 
green and slightly hispid on both surfaces. Capitula congested in heads, 
which form a panicle } ft. long; lower bracts like leaves in colour and 
texture. Fruit-calyx } in. long; lips ovate, entire, }—4 lin. long. 
Corolla and stamens not seen. 
South Central. Lunda: Mussumba, Pogge, 370. 
Imperfectly known species. 
37. A. Pischeri, Giirke in Engl. Pfl. Ost-Afr. C. 348. Branches 
pubescent. Leaves lanceolate, acuminate, narrowed to a short petiole, 
serrate, pubescent on both sides. Heads subglobose ; basal bracts 
rhomboid-lanceolate, Fruit-calyx bilabiate ; upper lips subacute, lower 
rounded at the apex. 
Mozamb. Dist. (ierman East Africa : Wadiboma (? Kwadiboma, near Mgera, 
in Nguru district), Fischer, 503. 
