358 cii. LABIATE (baker). [Acrocej)halus. 



adpressed grey hairs. Leaves petioled, linear, 1-2 in. long, 7,^-^ in. 

 broad, acuminate, narrowed to the base, minutely and shortly'serrate, 

 clothed with adpressed grey hairs. Heads globose, J in. diam.,tomen- 

 tose, many, forming an ample corymb ; lower bracts ovate-lanceolate, 

 tipped with blue-purple. Flower-calyx under yV in. long, silky ; lobes 

 very small. Corolla protruding \-\ in. from the throat of the calyx ; 

 lips ovate, ^ lin. long. Stamens exsei-ted. 



Xrile Iiand. British Kast Africa: .Jur; Jur Awet and Agada, Schweinfartli, 

 2541, 4273. 



10. A. iododermis. Briquet in Engl. Jahrb. xix. 1G7. Stem tall, 

 much branched, pubescent. Leaves linear-lanceolate, shortly petioled, 

 about 1 in. long, ^^-\ in. broad, acute, narrowed to the base, mode- 

 rately denticulate, green and slightly pubescent on both surfaces. Heads 

 dense, globose, peduncled, J-J in. long ; basal bracts ovate-lanceolate, 

 acuminate, A-1 in.' long, green at the tip, blue-purple towards the base ; 

 flower-bracts much narrower. Calyx finally \-^ in. long ; lips small. 

 Corolla protruding ^- in. from the throat of the calyx ; lips ^V-jV in. 

 long. Stamens exserted. 



South Central. Lunda : near Mukenge, in Ba.shilange 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, ^-J in. long; basal bracts ovate, ^-h in. 

 long, whitish at the apex and base ; flower-bracts narrower, pilose. 

 Fruit-calyx -| in. long ; upper lip yV in. long, minutely 3-lobed ; lower 

 rather shorter, 2-lobed. Corolla protruded \ in. from the throat of the 

 calyx ; lips xV~i i^' ^ong. 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. coeruleKs, Ohv., var. 

 genuinus, Briquet, 



12. A. poggeanus. Briquet 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, 1J-2| in. long, 

 acuminate, narrowed to the base, closely denticulate-crenate, green 

 and slightly pilose on both surfaces. Heads corymbose, globose, J- J in. 

 diam. ; peduncles clothed with dark blue hairs ; basal bracts small, 

 oblong-lanceolate, white at the base and beneath. Mature calyx ^ in. 

 long ; lobes very small. Corolla protruding Jj in. from the throat of the 

 calyx ; lips very small. Stamens much exserted. 



South Central. Lunda : near Mukenge, in I^ashilange district, Pogge, 1087. 



13. A. polytrichus. Baker. Perennial. Stems much branched, 

 1^—2 ft. long, densely clothed with short spieading hairs. Leaves con- 



