Plectranthus. 



CII. LABIAT.t: (hAKEu). 



401 



***Symphostemox. Upper tooth of calyx ovate : lower 

 triangular. Filaments shortly niiited. Leaves 

 alternate , . . , . . . 76. P. imolitux. 



1. P. melano carpus 9 Gierke in Engl. Jahrb. xix. 2U1). JStems 

 erect, branched, tetragonous, clothed with long very thick spreading 

 hairs. Leaves unknown. Inflorescence a much-branched panicle ; 

 flowers solitary in the axils of the lanceolate-subulate bracts ; pedicels 

 long, glandular-pubescent, as are the calyx and axis. Fruit-calyx 

 \-\ in. long, tubular, curved ; upper tooth orbicular, obtuse ; lateral 

 longer, lanceolate, acuminate ; lowest longest, lanceolate-subulate, 

 acuminate, 



XWIozamb. Slat. German East Africa : Masai Steppe, Fischer, ."311. 



2. P. tetragonas, Giirke in Kngl. Jahrh. xix. 2(H). Stems erect, 

 branched, tetragonous, o ft. long ; glabrescent below, clothed upwards 

 with long very thick spreading hairs. Leaves oblong, narrowt^d into a 

 long petiole, acute, 8-4 in long, 2 -2} in. broad, glabrous on both sides or 

 hairy on the ribs beneath. Inflorescence a racemose panicle; flowers 

 solitary in the axils of the round-ovate acuminate bracts ; rhachis 

 and pedicels shortly glandular-pubescent. Fruit-calyx \ in, long; tuh« 

 campanulate ; upper tooth round-ovate, acuminate, with slightly 



