Acrocephalus.] cii. labiat.e (baker). 363 



denticulate, narrowed very gradually to the base, pubescent on both 

 sides. Heads globose, corymbose, ;|-J in. diam. ; basal bracts ovate, 

 green to the base; flower-bracts pale green, pubescent, orbicular, ^ in. 

 long. Flower-calyx }■ in. long ; lips oblong. Corolla twice as long as 

 the calyx. 



Xiower Guinea. Angola : province of Huilla, Welwilsch, 5600 ! 5(307 I 



80. A. masuianuSy Briquet in Bull. Soc. Bot. Behj. xxxvii. HO. 

 A tall perennial herb. Stem robust, branched, clothed with ferruginous 

 hairs. Leaves sessile, lanceolate, 2-3 in. long, acute or acuminate, 

 minutely crenate, narrowed to the base, dull green and softly villous on 

 both surfaces. Heads depresso-globose, forming a dense corymb ; outer 

 bracts broadly ovate, \-^ in. long, deeply crenate, clothed with white 

 hairs. Flower-calyx ovoid, finally ^-V in. long, clothed with long liairs ; 

 upper lip 4-1 in. long. Corolla protruded 1 in. from the throat of the 

 calyx ; upper lip 3-lobed, nearly as long as the tube. — De Wild. S: 

 Durand, 111. Fl. Congo, i. t. 13. 



Iioiver Guinea. Lower French Congo : forest of Mayombe, Dupuix. 



31. A. Hensiiy Briquet m Bull. Soc. Bot. Bely. xxxvii. 77. A 

 medium-sized perennial herb, with pubescent tetragonous branches. 

 Leaves subsessile, oblong-lanceolate, 2-3 in. long, entire, narrowed to 

 the base, dull green, shortly pubescent and gland-dotted on both sur- 

 faces. Heads cylindrical, peduncled, h in. long ; outer bracts ovate- 

 oblong, foliaceous, grey-green; flower- bracts obovate, as long as the 

 calyx, clothed principally on the edge with long hairs. Flower-calyx 

 hairy, J in. long; upper lip round-ovate, entire; lower shorter, with 2 

 minute teeth. Corolla dark lilac, protruded ^ in. from the throat of 

 the calyx ; lips much shorter than the tube. Stamens exserted. 



Ziower Guinea. Lower Congo : marsh of Stanley Pool, Hens, 42. 



32. A. minor, Briquet in Engl. Jahrb. xix. lOD. Stem dwarf, 

 clothed with adpressed hairs. Leaves sessile, oblong-lanceolate, above 

 1 in. long subacute, narrowed to the base, distantly toothed, green and 

 pilose on both surfaces. Heads forming a lax corymb, depresso-globose, 

 |-J in. diam. ; basal bracts green, ovate. Flower-calyx h in. long. 

 Corolla protruding |-J in. from the throat of the calyx ; lips very 

 small. Stamens exserted. 



Iiower Guinea. Angola, Welioitschy 5605 ! (5905 ex Briqutt by error). 



33. A. elongatus, Briquet in Emjl. Jahrb. xix. 171. Stem tsili, 

 robust, branched, green, slightly pilose ; internodes long. Leaves 

 petioled, ovate or oblong-lanceolate, lA-2^ in. long, acuminate, narrowed 

 to the base, regularly crenate or dentate ; green and slightly hairy on 

 both surfaces. Heads globose, sessile or subsessile, forming a congested 

 panicle 3-4 in. long ; flower-bracts like reduced leaves in colour and 



