358 CII, LABIATE (BAKER). [ Acrocephalus. 
adpressed grey hairs. Leaves petioled, linear, 1-2 in. long, ,—} in. 
broad, acuminate, narrowed to the base, minutely and shortly serrate, 
clothed with adpressed grey hairs. Heads globose, § in. diam., tomen- 
tose, many, forming an ample corymb; lower bracts ovate-lanceolate, 
tipped with blue-purple. Flower-calyx under ,; in. long, silky ; lobes 
very small, Corolla protruding 4-4 in. from the throat of the calyx ; 
lips ovate, 4 lin. long. Stamens exserted. 
Wile Land. British East Africa: Jur; Jur Awet and Agada, Schweinfurth, 
2541, 4273. 
10. A. iododermis, Brigquet in Engl. Jahrb. xix. 167. Stem tall, 
much branched, pubescent. Leaves linear-lanceolate, shortly petioled, 
about 1 in. long, 3,—1 in. broad, acute, narrowed to the base, mode- 
rately denticulate, green and slightly pubescent on both surfaces. Heads 
dense, globose, peduncled, 4-4 in. long; basal bracts ovate-lanceolate, 
acuminate, }—1 in. long, green at the tip, blue-purple towards the base ; 
flower-bracts much narrower. Calyx finally 4-} in. long; lips small. 
Corolla protruding 4 in. from the throat of the calyx; lips 7;-7’5 In. 
long. Stamens exserted. 
South Central. Lunda: near Mukenge, in Bashilange district, Pogge, 1086. 
11, A. Campicola, Briquet in Engl. Jahrb. xix. 167. Stem tall, 
robust, much branched, pubescent. Leaves shortly petioled, linear, 
1-2} in. long, }-} in. broad, acute, narrowed to the base, minutely 
denticulate, green on both surfaces, glabrescent or pubescent. Heads 
dense, cylindrical, peduncled, }-3 in. long; basal bracts ovate, $—-} in. 
long, whitish at the apex and base; flower-bracts narrower, pilose. 
Fruit-calyx 4 in. long; upper lip ,4, in. long, minutely 3-lobed ; lower 
rather shorter, 2-lobed. Corolla protruded 4 in. from the throat of the 
calyx ; lips },-4 in. long. Stamens exserted. 
South Central. Congo Free State: near Nyangwe, on the River Lualaba, 
Pogge, 1075, 
Briquet quotes the same number with date and place for A. ceruleus, Oliv., var. 
genuinus, Briquet. 
12. A. poggeanus, Briguet in Engl. Jahrb. xix. 170. A tall 
herb with green branches, dark blue on the angles, clothed with 
firm crisped blue hairs. Leaves petioled, lanceolate, 13-24 in. long, 
acuminate, narrowed to the base, closely denticulate-crenate, green 
and slightly pilose on both surfaces. Heads corymbose, globose, 4-4 in. 
diam.; peduncles clothed with dark blue hairs; basal bracts small, 
oblong-lanceolate, white at the base and beneath. Mature calyx 4 in. 
long ; lobes very small. Corolla protruding } in. from the throat of the 
calyx ; lips very small. Stamens much exserted. 
South Central. Lunda: near Mukenge, in Bashilange district, Pogge, 1087. 
13. A. polytrichus, Baker. Perennial. Stems much branched, 
13-2 ft. long, densely clothed with short spreading hairs. Leaves con- 
