Orthosiphon. | LABIAT (Brown). 245 
Katanart Reaion: Transvaal; hills near Barberton, 3000-4500 ft., Galpin, 
468 ex Guerke, Bolus, 7604! Concession Creek, near Barberton, Thorncroft, 175! 
3125! Wood, 4289! near Lydenburg, Wilms, 1107! and 1108 ex Guerke. Riet- 
oer Lydenburg, Burtt Davy, 7256! near the Crocodile River, Schlechter, 
16! 
6. 0. labiatus (N. E. Br.); apparently a branching herb (or 
shrub?) 2 ft. or more high ; branches 4-angled, pubescent; leaves 
spreading ; petiole very slender, }-} in. long, pubescent; blade 
3-14 in. long, 4-1 in. broad, ovate or elliptic-ovate, obtuse or acute, 
very shortly and broadly cuneate or rounded at the base, obtusely 
serrate, very thinly and rather minutely pubescent on both sides, 
paler on the under side; racemes with 4-6 whorls 4-} in. apart, 
4—6-flowered ; lower bracts deciduous, not seen ; upper more or less 
persistent, purple, 34-4 lin. long, 24 lin. broad, orbicular, abruptly 
cuspidate-acuminate ; pedicels 24-3 lin. long, slender, puberulous ; 
calyx thin, purple; tube 2} lin. long, campanulate, thinly pube- 
rulous ; upper tooth 14 lin. long, 1} lin. broad, orbicular-ovate, 
decurrent on the tube ; lateral teeth $ lin. long and the lower pair 
14 lin. long, all subulate from a broader base, flat for the greater 
part of their length ; corolla-tube 4-4} lin. long, with the upper 
part bent downwards from the middle and enlarging to about 2 lin. 
in vertical diameter at the mouth, glabrous ; upper and lower lips 
subequal, 4-5 lin. long, measured from the base of the gape, about 
1} lin. broad, oblong ; upper lip standing nearly at a right angle to 
the tube, with parallel sides, 3-toothed at the apex, with the middle 
tooth larger and rounder than the lateral pair ; lower lip directed 
forwards or perhaps ultimately reflexed, obtuse, concave ; stamens 
ultimately exserted beyond the lower lip ; filaments all free, those 
of the upper pair inserted close to the base of the corolla-tube, 
ciliate at the basal part. 
Karanart Reaion: Transvaal; Woodbush Mountains, 6400 ft., Schlechter, 
4434! 
The long slender petioles and long upper lip of the corolla readily distinguish 
this from all the other South African species. 
7. 0. Muddii (N. E. Br.); stems probably several from a 
perennial rootstock, 3-1 ft. high, slender, about } lin. thick, erect, 
simple or slightly branched, 4-angled, pubescent ; leaves in 3-4 
distant pairs, 3-1} in. long, }-} in. broad, those on the axillary 
shoots smaller, obovate or oblanceolate, acute or obtuse, very 
acutely tapering into the 1-1} lin.-long petiole, acutely toothed in 
the upper half, very sparsely pubescent on both sides or nearly 
glabrous beneath and the veins but slightly prominent; raceme 
simple, with 2-4 whorls }—1 in. apart, 6-flowered ; flowering-bracts | 
4 in. long, 14-24 lin. broad, lanceolate, acuminate, ciliate, deciduous ; 
terminal 2-3 pairs of bracts flowerless, persistent, spreading, 
pinkish-red, 6-10 lin. long, 14-3 lin. broad, lanceolate, very acumi- 
nate, tapering into a short petiole, slightly pubescent, ciliate ; 
