Pycnostachys.] cii. labiate (baker). 381 



G. P. micrantha, Gurke in Engl. Pji. Ost-Afr. C. 345. Sterna 

 tetra^jonous, pubescent, branched. Leaves subsessile or very shortlv 

 petioled, lanceolate, narrowed to the base, very acuminate, serrate, quite 

 glabrous on both surfaces. Spikes narrow, cylindrical. Calyx carn- 

 panulate, glabrous; teeth divaricate, rigid, scarcely longer than the 

 tube. Corolla small. 



nxozamb. Dlst. German East Africa : Karagwe, Stuhlmann, 1720 ; Bukoba, 

 Siuhlmann, 3276, 3718, 3953 ; Mpororo, Stuhlmann, 2056. 



7. P. paryifolia, Baker in Kew Bulletin, 1895, 72. Stems herba- 

 ceouvS, perennial, branched, densely pubescent, lJ-2 ft. long. Leaves 

 sessile, verticillate, linear or lanceolate, entire, densely pubescent, 

 unequal, the longest 6-9 lin. long. Racemes very dense, oblong or 

 subglobose ; bracts small, linear. Calyx pilose ; tube very short ; teeth 

 rigid, linear-subulate, finally J in. long. Corolla 0-9 lin. long ; tube 

 much longer than the calyx ; upper lip small, narrow. Stamens 

 included. 



Mozamb. Bist. German East Africa : between Lake Tanganxika and Lake 

 Rukvva, Nutt ! Biitish Central Africa: Urungu ; Fwambo, 5000-6000 ft.. Carson, 

 26 ! 34 ! 92 ! 103 ! N^asaland ; Tanganyika Plateau at Fort Hill, 3500-4000 ft., 

 Whyte : 



8. P. deflexifolia^ Baker. A perennial herb, with quadrangular 

 pube.scent stems. Leaves in distant pairs, subsessile, deflexed, lanceo- 

 late, 1^-2 in. long, acuminate, finely serrate, subcoriaceous, green and 

 finely pubescent on both surfaces. Spikes dense, oblong, single, 

 terminal, 1|— 2 in. long. Calyx-tube small, campanulate, thinly pilose ; 

 teeth subulate, spreading, hispid, \ in. long. Corolla violet. 



wile Iiand. British East Africa : near Lake Elnieteita, 6000 ft., Scott-Elliot, 

 6756! 



9. P. Kirkiiy Baker. A perennial, with erect simple pubescent 

 stems 2 ft. long. Leaves sessile, lanceolate, firm in textupe, pubescent, 

 distantly and minutely dentate, the lower 2-3 in. long, J in. broad, the 

 upper growing gradually smaller. Flower-spikes very dense, bhort, 

 conical, panicled. Calyx-teeth in the flowering stage J in. long. 

 Corolla very hairy outside ; lower lip \ in. long. 



Mozamb. Dlst. British Central Africa : Nyasaland ; Manganja Hills, 3000- 

 4000 ft.. Kirk ! and without precise locality, Buchanan, 700 ! 



10. P. rexnotifolia. Baker in Kew Bulletin, 1898, IGl. An erect 

 perennial herb, with glabrous tetragonous stems. Leaves in a few- 

 distant pairs, subsessile, lanceolate, 3-4 in. long, acuminate, narrowed 

 to the base, toothed, green and glabrous on both surfaces. Spikes 

 many, dense, oblong, panicled, J-lJ in. long; lower flowei-s deflexed. 

 Calyx-tube short; teeth setaceous, rigid, ^ in. long. Corolla blue; 

 tube longer thf n the calyx ; lower lip concave, J in. long. Stamen.'^ 

 not exserted from the lower lip. 



Mozamb. Slat. British Central Africa : Nyusuland ; Tanganyiku Plateau, at 

 Fort Hill, 3500-4000 ft., WTiyte ! 



