246 LABIAT& (Brown). [ Orthosiphon. 
pedicels 1-2 lin. long, pubescent ; calyx-tube 3-3) lin, long, tubular- 
campanulate, pubescent outside, minutely puberulous within, darkly 
coloured ; upper tooth 1-1} lin. long, 1} lin. broad, obtusely 
rounded ; lateral and lower teeth 1-13 lin. long, bristle-like from a 
deltoid base ; corolla slightly and minutely pubescent outside ; tube 
7-74 lin. long, dilated and compressed in the upper part, glabrous 
inside ; upper lip 3 lin. long, oblong, complicate-concave or some- 
what hooded, shortly and obtusely 3-lobed at the apex, the middle 
lobe 4 lin. long, nearly 1 lin. broad, twice as long as the lateral 
lobes ; lower lip 3-34 lin. long, oblong, obtuse, concave ; stamens 
unequal, the united pair (or all when fully exserted) straight, 
except at the very apex, which is upcurved ; upper pair inserted 
about } in. above the base of the corolla-tube, 7 lin. long, at length 
exserted, their filaments free, flat, ciliate ; lower pair inserted at 
the base of the lower lip, 4 lin. long, their filaments united nearly 
to the apex, glabrous ; stigma shortly bifid, with linear lobes. 
Katanart Reoton: Transvaal; on the Drakensberg Plateau, Mudd! near 
Spitzkop, Lydenburg district, Burtt Davy, 1570! 
8. 0. Thorncroftii (N. E. Br.) ; stems apparently several from the 
same rootstock, 5-8 in. high, about 2 lin. thick at the base, scabe- 
rulous; leaves in 3-4 pairs, with or without short (usually shorter 
than the leaves) shoots in their axils, ascending-spreading, }—{ in. 
long, 1—} in. broad, lanceolate, acute, acutely narrowed into a short 
petiole, with thinly scattered pubescence on both sides; whorls 2-4 
in a simple raceme, 2-1 in. apart, 3-6-flowered ; lower bracts }—} in. 
long, lanceolate, acute, like reduced leaves, deciduous ; upper bracts 
persistent, thin and coloured, purple ?, spreading, 3-{ in. long, 
1-1 in. broad, lanceolate, tapering into a long acuminate point at 
the apex and into a distinct petiole at the base, often without 
flowers in their axils; pedicels 1-1} lin. long, pubescent ; calyx- 
tube 1—} in. long, pubescent outside; upper tooth 4-} in. long, 
broadly ovate, acute; lateral and lower teeth bristle-like, the 
lower 1 in. long; corolla-tube 44 lin. long, exceeding the calyx- 
teeth, slightly curved, compressed, truncate at the mouth, minutely 
puberulous ; upper lip 3-lobed, middle lobe erect, about } lin. long 
and 2 lin. broad, oblong, obtuse, lateral lobes much smaller ; lower 
lip } in. long, elliptic-boat-shaped, obtuse ; upper pair of stamens 
inserted just below the middle of the tube, free, ciliate on the basal 
part, exserted as far as the lower pair or only to the tip of the lower 
lip ; lower pair inserted at the base of the lower lip and exserted 
far beyond it, 4-4} lin. long, with their filaments united to the 
apex. 
Katanarti Reoron : Transvaal; near Barberton, 7'horncroft, 3123! Bolus, 9743! 
Saddleback Range, near Barberton, Galpin, 465 (mingled with O. persimilis) ! 
9. O. persimilis (N. E. Br.); stems }-1 ft. (or more?) high, 
simple or branched, about 1 lin. thick at the base, 4-angled, pilose- 
pubescent ; leaves 3-1 in. long, 3-} in, bread, lanceolate, acute, 
