350 cii. LABIATE (baker.) [Platijst07na. 



Upper Guinea. Sierni Leone, Morson ! liiberia : Cape Pahnas, Ansell ! 

 Tfold Coast, .7?M/Voff / Aquapim Mountains, Thonning ! liagos : Abeoknta, Irving, 

 H3 ! Xi^er Territory: Benin, Beauvois ! Nupe ; Jeba, Barter! Lower Niger, 

 Onitsa, Barter, 99! Stirling Hill, Ansell! Niger Delta; Nun River, I'ogel, 10! 

 Camerooiis : Hatanga, Bates, 15 ! Wx^xwiie, Zenker, 1218! Fernando Po, J'ogel, 213! 

 Barter ! 



ITile Iiand. Abyssinia, Petit ! Pritish East Africa : Jur ; (Jir, Schtveinfurth, 

 2552! 



Iiower Guinea. Island of St. Thomas, Mailer Sf Quintas. Lower Congo : 

 Lutete, Hens, 302 ! and without precise locality, Cabra, lOB. Angola : Benibe, 

 Monteiro! (lolungo Alto, Welwitsch, 5534! 0035 ! 5536! 5581! 



Mozamb. Dist. (lerman East Africa : Usambara : Lutindi, Hoist, 3255 ! 

 (Jonja, ^o/.?/, 4226 ! Kilimanjaro, 5000-6000 ft,, Volkens, 580! Johnston! British 

 Central Africa : Nyasaland ; between the River Songwe and Karonga, 1700-2000 ft., 

 Whyte, 71 I 



Also in India. 



'2. P. buettnerianum. Briquet in Engl. Johrh. xix. IGG. A 

 much-branched herb, with square thinly pubescent branches. Leaves 

 shortly petioled, ovate-rhomboid, 1 in. long, acute, crenate above the 

 entire cuneate base, membranous, green and glabrous on both surfaces. 

 Cymes sessile, forming a lax sitople terminal raceme 2-3 in. long ; 

 pedicels short ; lower bracts ovate, foliaceous. Calyx -^^ in. long ; lips 

 ovate, the upper rather longer, recurved. Corolla protruding \ in. 

 from the throat of the calyx. Stamens not exserted. 



Ziower Guinea. Lower Congo : Leopoldville, at Stanley Pool, Bilttner, 449 ! 



4. GENIOSPORUM, Wall. ; Benth. et Hook. f. Gen. Plant, ii. 



1172. 



Calyx suberect or declinate in fruit ; tube often transversely rugose ; 

 teeth subequal or the upper one broader, not decurrent. Corolla-tube 

 scarcely longer than the calyx ; lips subequal ; lower entire, not concave. 

 Stamens 4, didynamous, declinate ; filaments not appendiculate ; anthers 

 1 -celled. Disk glandular. Style shortly bifid. Nucules ovoid, smooth 

 or minutely punctate.— Erect or procumbent, glabrous or pubescent, 

 herbs. Whorls many-flowered, forming dense terminal racemes : lower 

 bracts often large and vA'hitish or coloured. Flowers veiy small. 

 Species 10-12. Also in Madagascar and Tropical Asia. 

 Leaves oblong. 



Ijeaves sessile ...... 



Leaves shortly petioled ..... 



Leaves distinctly petioled .... 



Leaves obovate-enneate ..... 



Leaves ovate. 

 Pubescence grey. 



Leaves obscurely pubescent beneath 

 Leaves densely pubescent beneath 

 Pubescence violet or ferruginous 

 Pubescence reddish ..... 



