Acrocephalus.'] cii. labiat.e (baker). 3(;1 



orhicular, pubescent, J in. long and broad. Calyx as long as the bract ; 

 lips oblong. Corolla twice as long as the calyx. 



Iiower Guinea. Angola : province of Huilla, Welwitsch, 5600 ! 



21. A. lippioides, ^a^^er. Perennial. Stem slendet-, erect, densely 

 pubescent, branched only at the top. Stem -leaves oblong-lanceolate, 

 petioled, subcoriaceoue, minutely crenate, glabrous above, pubescent 

 beneath, the lower 5-6 in. long. Heads few, small, corymbose, globose ; 

 basal bracts ovate or orbicular, pilose ; flower-bracts cuneate, \ in. broad. 

 Calyx nearly as long as the flower-bract. Corolla large for the genus, 

 \ in. long. Stamens slightly exserted. 



Iiower Guinea. Angola : province of Pungo Andongo, Welwitsch, 5550 1 



22. A. Heudelotii, Briquet in Bull. Herb. Boiss. ii. G89. 

 Perennial. Stems erect, much-branched, finely pubescent, 1^-2 ft. 

 long. Leaves congested into whorls, linear, sessile, entire, lS-2 in. 

 long, narrowed to the base, finely pubescent on both sides. Heads in 

 dense corymbs at the end of the branches, globose, J-J in. diam. ; basal 

 bracts linear, entirely foliaceous; flower-bracts obovate-cuneate, pale, 

 densely hairy, J in. long. Flower-calyx ^ in. long ; lips obloug, as long 

 as the tube. Corolla twice as long as the calyx, pale violet. 



Upper Guinea. Senegambia : banks of the Rio Nunez, Heudelot ! and without 

 precise locality, Heudelot, 620 ! French Guinea : Sulimania ; Herimankuna, Scott- 

 Elliot, 5262 ! 



Wile Ziand. British East Africa : Jur ; Agada, near Jur Ghattas, Schweinfurth, 

 2470 ! 254.1 ! Jur Awet, Schweinfurth, 4273 ! 



23. A. Laurentii, Briquet in Bull. ,Soc. Bot. Belg. xxxvii. 70. A 

 tall perennial herb. Stem robust, tetragonous, clothed with crisped 

 hairs. Leaves sessile or subsessile, narrowly lanceolate, H in. long, 

 very acute, entire or irregularly serrate, dull green and pubescent on 

 both surfaces. Heads shortly peduncled, crowded in dense corymbs, 

 depresso-globose, J-J in. diam. ; outer bracts round-ovate, ^ in. long, 

 emarginate, mucronate, densely pubescent on both surfaces except at 

 the base ; flower-bracts with long hairs on the edge. Flower-calyx 

 pubescent, —; in. long ; lips 3-4 times the length of the tube. Corolla 

 protruding ^ in. from the throat of the calyx ; lips \ the length of the 

 tube. 



Soutb Central. Congo Free State : Lusambo, on the River Sankuru, Laurent. 



24. A. reticulatuSy Briqnet in Engl. Jahrh. xix. 1G8. Stem very 

 robust ; internodes moderately long ; branchlets clothed with ferrugi- 

 nous tomentum. Leaves subsej^sile, lanceolate, lJ-3 in. long, acute, 

 narrowed to the base, closely and finely serrate, green and glabrous above, 

 green and pubescent with close prominent ribs beneath. Heads 

 globose, J-f in. long, rufo-tomentose ; basal bracts ovate, acute, J-^ in. 

 long, dull green, tomentose. Flower-calyx ^\ in. long; lips very 



