Ortkosiphon.] cii. labiate (baker). 371 



short, not exserted ; upper tilaments hairy throughout, not appendicu- 

 late. 



Xio^ver Guinea. Angola: province of Huilla, Welwitsch, 5 172 ! 



21. O. usambarensis, Gilrke in EmjL Pji. Ost-Afr. 0. M{). A 

 branched herb, with .stems pubescent upwards. Leaves shortly petioled, 

 ovate, 1-li in. long, acute, narrowed to the base, deeply inciso-crenate, 

 membranous, pubescent on both surfaces. Whorls G-flowered, forming a 

 lax cylindrical raceme, 'di-i] in. long; bracts minute, broadly ovate; 

 pedicels pubascent, J- in. long. Calyx finally J in. long; upper tooth 

 ovate, with decurrent edges, as long as the tube ; lateral teeth deltoid- 

 cuspidate ; lower subulate. Corolla-tube twice as long as the calyx ; lips 

 small. Stamens included. 



XVXozaml). Bist. German East Africa: Usambara ; Masheua, Hoist, 3561a ! 



'22. O. dissitifolius. Baker. Perennial. Stems slender, erect, 

 simple or branched, under a foot long, slightly hairy. Leaves in few 

 distant pairs, shortly petioled, obovate-cuneate, obtuse, obscurely crenate, 

 1-1^ in. long, moderately firm, obscurely nubescent on both sides. 

 Flowers in few whorls forming a lax terminal raceme, G-8 in a whorl ; 

 pedicels hairy, J-J in. long; bracts lanceolate, minute. Calyx purplish, 

 ^ in. long, slightly hairy; tube campanulate; upper lip ovate, as long 

 as the tube ; lower teeth large, lanceolate, longer than the upper lip. 

 Corolla-tube cylindrical, much longer than the calyx; lips small. 

 Stamens not exserted. 



XVXozamb. Blst. British Central Africa : Urungu ; Fwambo, 5000-6000 ft., 

 Carson, 69 ! 



'2d. O. xnalosanus. Baker. A much-branched erect perennial, 

 with stems woody in the lower part and slender densely pilose branches. 

 Leaves shortly petioled, obovate-cuneate, very small, obtuse, crenate in 

 the upper half, green and thinly pilose on both surfaces. Whorls •!-(!- 

 flowered, forming a short lax raceme ; bracts minute ; pedicels pubescent, 

 \ in. long. Fruit-calyx pilose, above \ in. long; tube campanulate; 

 upper tooth ovate ; lateral teeth lanceolate ; lower linear, longer than 

 the tube. Corolla as long as the calyx ; lips small. Stamens not 

 exserted. 



XtXozamb. Blst. British Cenlral Africa : Xyasaland ; Mount MhIosh, \000- 

 6000 ft., Whyte ! 



24. O. Wakefieldii, Baker. Perennial. Stems slender, decum- 

 bent, much-branched, pubescent, 1-2 ft. long. Leaves small, petioled, 

 orbicular, crenate, densely hairy on both sides. Racemes lax ; bi*acts 

 minute, deciduous ; whorls few-flowered ; pedicels as long as the calyx. 

 Calyx ^ in. long ; tube campanulate ; upper tooth orbicular, as long as the 

 tube ; lateral teeth small ; lower large cusps. Corolla-tube subcylindrical, 



