398 CH. LABIATE (BAKER). | Holanthus. 
bracts in pairs, foliaceous, oblong-lanceolate, pubescent, imbricate, 4 in. 
long. Calyx campanulate, } in. long. Corolla 4 in. long; lower lip 
shorter than the tube. Stamens not exserted beyond the lower lip.— 
Holanthus sp., Burkill & Wright in Journ. Linn.Soe. xxxiv. 272, fig. 7. 
Mozamb. Dist. British Central Africa: Nyasaland; Shire Highlands, in 
marshes, Buchanan, 459! Fort Hill, Tanganyika plateau, 3500-4000 ft., Whyte ! 
38. AE. floribundus, Briguet in Engl. Jahrb. xix. 190. An 
undershrub, with erect branches, clothed with grey pubescence. Leaves 
petioled, oblanceolate, 1 in. long, }—} in. broad, obtuse, narrowed to the 
base, entire, green and glabrous on both surfaces. Cymes subsessile, 
aggregated in a dense terminal raceme 5-6 in. long; bracts oblong, 
coloured. Calyx smal], campanulate, with 5 obscure teeth. Corolla 
pale violet, ? in. long; tube incurved, dilated in the upper half, nearly 
3 in. long; lower lip 4 in. long. Stamens not exserted. 
Lower Guinea. Angola; near Moma, Buchner, 82. 
39. AG. obtusifolius, Briquet in Engl. Jahrb. xix. 189, An 
undershrub, with straight branches, clothed with short adpressed pubes- 
cence. Leaves shortly petioled, obovate, $ in. long, } in. broad, obtuse, 
narrowed to the base, entire, pubescent on both surfaces, green above, 
grey beneath. Cymes shortly peduncled, aggregated in a dense 
terminal raceme 5-6 in. long; bracts oblong, coloured, about } in. long. 
Flower-calyx campanulate, ,', in. long; teeth very minute. Corolla 
2 in. long; tube much exserted, incurved; lower lip } in. long. 
‘Stamens not exserted. 
Lower Guinea. Angola; Malange, Welwitsch (Mechow ?), 473. 
Imperfectly known species. 
40, 4&. ndorensis, Schweinf. in Héihnel Zum Rudolph-See . 
Stephanie-See, Sonderabdr. 6. Suftruticose, with succulent pubescent 
branches. Leaves elliptic, sessile. Corolla pubescent outside. Stamens 
longer than the lower lip.—Eng]l. Hochgebirgsfl. Trop. Afr. 362. 
Nile Land. British East Africa: Ndoro, on the western slope of Mount 
Kenia, 6350 ft., Héhnel, 
13. PLECTRANTHUS, L’Hérit.; Benth. et Hook. f. Gen. Pl. il. 
1175, 
Calyx slightly accrescent, usually declinate in the fruiting stage; 
tube oblong or campanulate, often gibbous at the base ; teeth subequal, 
deltoid, or unequal, the upper ovate and reflexed, the others cuspidate. 
Stamens 4, didynamous, declinate ; filaments free (except in 78. P. inso- 
litus), filiform ; anther-cells usually confluent. Disk produced into 
gland, which is sometimes longer than the ovary. Style shortly bifid. 
Nucules ovoid or oblong, smooth or punctate.—Annual or perennia 
herbs or undershrubs. Leaves very various in shape and size, petioled 
-or sessile. Flowers solitary or in axillary more or less developed cymes, 
