Plectratdhus.^ cii. labiate (baker). 1o:> 



f ew-flovvcred ; pedicels finally \-\ in. long. Calyx in tlower J in., m 

 fruit J in. long ; tube oblong ; upper tooth ovate, much shorter th;iii 

 the tubs; lateral small cusps ; lower very large cusps. Corolla ^ in. 

 long; lower lip oblong, as long as the tube.- Engl. HochgebirgsH 

 Trop. Afr. ;J59. 



Upper Guinea, (.'aineroons : Cameroon Mountain, 7000 ft., Mann, 1207 1 



1(». "P, raider shWis y Bi'iquet in Emjl. Jahrh. xix. \H0. A herl), 

 bearing tubeicles, creeping at the base, then ascending to a height 

 of '2 ft. Leaves petioled, ovate-oblong, above 1 in. long, acute, cuneate 

 at the base, shallowly crenate, green and pubescent on both surfaces. 

 Inflorescence i-acemose, long ; lower whorls distant ; bracts deciduous. 

 Calyx very accrescent, J lin. long in the flowering stage ; upper tooth 

 ovate, the lateral ovate, acuminate, the lowest setaceous. Corolla pro- 

 truding i\t-| in. from the throat of the calyx; lower lip /., in. long. 

 Stamens included, very protandrous. 



South Central. Congo Free State : Lunda ; Mukenge, in Hashilange district. 

 Foffge, 1022. 



17. P. xnandalensis, Baker. An erect perennial, with short 

 finely hairy tetragonous stems. Leaves long-petioled, membranous, 

 broadly ovate or suborbicular, the lower ;]-4 in. long and broad, 

 deeply crenate, pubescent on both surfaces. Whorls 2-;] flowered, 

 forming lax racemose panicles ; pedicels i. in. long ; bracts lanceo- 

 late. Flower-calyx ^^ in. long ; tube campanulate ; upper tooth small, 

 ovate ; lower longer, lanceolate. Corolla pale lilac, twice as long as the 

 calyx. 



Mozamb. Slst. British Central Africa: Xyasaland ; Mandala, cultivalcil 

 specimen, Moir ! 



Described from a specimen grown at Kew in .Ian. 189i, which was raised froin 

 seed sent by Mr. .1. Moir in 1898. 



IX. P. pauciflorus. Baker. A slender erect annual, with the 

 habit of Circoea alpina. Leaves small, distinctly petioled, ovate, 

 crenate, membranous, obscurely pubescent. Inflorescence a \ery lax 

 racemose panicle; bi-anches "), approximate, the end one -) in. long; 

 whorls 2-flowered ; pedicels as long as the calyx. Calyx J in. long; 

 tube campanulate: upper tooth ovate, as long as the tube; lower as 

 long, lanceolate. Corolla J in. long ; lower lip as long as the tube. 

 IVIozamb. Dlst. (ierman East Africa : Unvamwezi ; Msihila, JInnnivtiton ! 



Vd. P. masukensiSy Baker. An erect branched perennial, with 

 jslender stems densely clothed with short spreading soft hairs. Leaves 

 shortly petioled, ovate, very small, acute, crenate, broadly roiMided at 

 the base, nearly glabrous on both surfaces. Whorls usually 2-riowered. 

 arranged in a long lax racemose panicle with a densely pilose rhachis ; 

 bracts minute, foliaceous ; pedicels very short. Fruit-calyx densely 

 pilose, ]; in. long; tube campanulate; upper tooth ovate, obtuse, about 

 VOL. V. ^ 



