Orthosiphon. | LABIATA (Brown). 251 
thickened, shortly and obtusely 2-lobed ; nutlets 1 lin. long, oblong, 
slightly compressed, light brown, shining. 
Eastern Recion : Pondoland ; Fakus Territory, Sutherland! Griqualand East ; 
in grassy places around Fort Donald, 5000 ft., Z'yson, 1666! and at Emyembi, 
5000 ft., Tyson, 2137! on both sides of a mountain near Emyembe Forest, 
5000 ft., Z'yson in MacOwan and Bolus, Herb. Norm. Austr.-Afr., 1293! eastern 
side of the Zuurberg Range, 4500 ft., Tyson, 1720! Natal; on a grassy hill near 
Umtamouma River, Wood, 3107! near Boston, 3000-4000 ft., Wood, 4624 (Natal 
Herb. 966)! Mawaga Mountain, 6000-7000 ft., Wood, 8126! 
15. O. Rehmannii (Guerke in Bull. Herb. Boiss. vi. 557) ; stems 
several from a woody rootstock, 1-1} ft. high, 3-1 in. thick, erect, 
very leafy and beset with short leafy axillary shoots, tomentose 
with minute branched hairs intermingled with long hairs ; leaves of 
the main stems 5-9 lin. long, 2-3 lin. broad, subsessile, rather thick, 
some flat, cuneately oblanceolate, subacute, toothed above the 
middle, revolute along the margins, others linear or linear-lanceo- 
late from the margins being very revolute, minutely and somewhat 
thinly tomentose above, white-tomentose with minute branched 
hairs beneath ; veins subparallel, very stout and prominent beneath, 
impressed above ; leaves of the axillary shoots much smaller, linear- 
lanceolate, entire, with very revolute margins ; inflorescence 3-4 in. 
long, simple or with 1-2 pairs of branches at the base; whorls 
4-8 lin. apart, 4—6-flowered ; bracts caducous, not seen ; pedicels 
1-14 lin. long, densely villous with long simple hairs ; calyx villous 
outside and ciliate on the teeth with long simple hairs intermingled 
with stalked glands, puberulous inside ; tube 24-3 lin. long, cam- 
panulate ; upper tooth 1-1} lin. long, 1} lin. broad, orbicular-ovate, 
subacute ; lateral and lower teeth unequal, 2-1 lin. long, bristle-like 
from a broad base ; corolla about twice as long as the calyx, slightly 
curved below the middle ; tube 6-9 lin. long, dilated and compressed 
in the upper part, glabrous outside, minutely pubescent in the lower 
part inside ; upper lip or truncate mouth of the tube 2—23 lin. long, 
3.lobed ; middle lobe about 3 lin. long, 1 lin. broad, oblate or sub- 
orbicular, tomentose on the back; lateral lobes small, rounded ; 
lower lip 2-2} lin. long, very deeply boat-shaped, obtuse, tomen- 
tose on the back ; stamens unequal, exserted much beyond the lower 
lip of the corolla ; upper pair inserted at about } the way up the 
corolla-tube, their filaments free, flattened, tomentose on the lower 
part; lower pair inserted at the base of the lower lip, united 
almost to the apex, glabrous ; stigma slightly thickened, with 
2 short acute lobes. 
Kabanart Rearon: Transvaal; Houtbosch, Rehmann, 6172! Schlechter, 4442 ! 
I have only seen rather imperfect or unopened flowers of this species, and the 
measurements given are perhaps inaccurate. 
16. O. albiflorus (N. E. Br.); a branching shrub 2-3 ft. high ; 
branches with internodes }-1 in. long, pubescent, beset with 
numerous short axillary densely leafy branchlets ; leaves subsessile, 
