242 LABIAT& (Brown). [ Orthosiphon. 
Eastern REGIoN : Natal ; on the Drakensberg at Ingagane, Rehmann, 7016! 
and between Ingogo and Charlestown, 4000-5000 ft., Wood, 6398 ! 
2. 0. latidens (N. E. Br.); herbaceous, 4-5 ft. high (Gerrard) ; 
stems obtusely 4-angled, pubescent ; leaves with very short leafy 
shoots in their axils scarcely longer than the 3-4 lin.-long petioles ; 
blade 11-1} in. long, 10-14 lin. broad, broadly ovate, acute, rounded 
or subcordate at the base, serrate, sparsely and minutely pubescent 
above, more densely and finely greyish-pubescent beneath, with 
prominent reticulate veins ; panicle elongated, narrow, 8-9 in. long, 
13-2 in. broad, with suberect branches 1}$—-2 in. long ; whorls 
41—-} in. apart, 3—6-flowered ? ; bracts 2-6 lin. long, }-1 lin. broad, 
lanceolate, acute, about two of the terminal pairs without flowers in 
their axils, purple, persistent, the others very deciduous, pubescent ; 
pedicels 1-1} lin. long, pubescent ; calyx tubular, 5-toothed, pubes- 
cent outside, puberulous within, apparently reddish or purplish- 
tinted ; tube about 4 lin. long ; upper tooth 2 lin. long, 1} lin. broad, 
oblong, obtuse ; lateral and lower teeth subequal, 14-1} lin. long, 
4 lin. broad at the middle, flat, linear-lanceolate, acute, ciliate ; 
corolla nearly twice as long as the calyx, thinly pubescent on the 
outside of the lips, glabrous within, rose-coloured ; tube 6—7} lin. 
long, dilated and compressed in the upper part, forming a vault to 
the upper lip, which is 3}—4 lin. long, oblong, unequally 3-lobed at 
the apex; middle lobe about 1 lin. long and broad, orbicular, 
obtuse ; lateral lobes very small, rounded ; lower lip 3-34 lin. long, 
oblong, obtuse, boat-shaped, about 1 lin. deep; stamens much 
exserted, unequal ; upper pair inserted slightly above the middle of 
the tube, free, about # in. long; lower pair inserted at the base of 
the lower lip, } in. long, exserted 3-4 lin. beyond the upper pair, 
their filaments united to the apex ; style filiform, exserted ; stigma 
minutely bifid. 
Eastern Recion: Natal; Umvoti district, Gerrard, 1233! 
3. 0. macranthus (Guerke in Engl. Jahrb. xxvi. 84); plant 
3-5 ft. high (Cooper, Wood), woody below, much branched (Wood) ; 
branches obtusely 4-angled above, terete below, minutely puberulous ; 
leaves spreading, with very short leafy shoots or fascicles of small 
leaves in their axils; petiole 1-4 lin. long; blade (of main-stem 
leaves) rather thick, 1-1} in. long, }-1 in. broad, elliptic-ovate, 
ovate-lanceolate or elliptic, obtuse to acute, cuneate at the base, 
usually with 3-9 small teeth along the middle or upper two-thirds 
on each side, sometimes nearly or quite entire, minutely rough to 
the touch on both surfaces, almost glabrous to the eye, densely 
gland-dotted ; panicle narrow, about 7 —10 in. long and 2 in. broad, 
with 6 or fewer pairs of suberect branches 1-3 in. long, puberulous ; 
whorls }-% in. apart, 2—6-flowered ; bracts }+} in. long, 4-} in. 
broad, elliptic or elliptic-ovate, subacute, with short recurved points, 
puberulous and with. a minute cottony ciliation, often purplish- 
tinted, very deciduous, but at first closely imbricate over the buds 
