260 LABIA'TA (Brown). | Orthosiphon. 
late, acute, serrulate, cuneate into the petiole at the base, whitish- 
pubescent to subtomentose, especially beneath ; panicle 6-8 in. 
long, with 2-3 pairs of branches, pubescent ; whorls several, about 
‘ Shh 6-flowered, 4-6 lin. apart; bracts 1-1 lin. long, ovate, acute, 
--__ eaducous ; pedicels 3-11 lin. long; calyx-tube 17 lin. long, cam- 
panulate, enlarged in fruit ; upper tooth about 1 lin. long and 
© broad, suborbicular, obtuse ; lateral and lower teeth bristle-like, 
the latter } lin. long; corolla more than twice as long as the calyx, 
_ $lightly pubescent ; tube 3-64 lin. long, straight, compressed and 
“dilated in the upper part ; upper lip (truncate mouth of the tube) 
erect, 1-1} lin. long, shortly 3-lobed ; side-lobes minute, rounded, 
recurved; terminal lobe broadly rounded, very obtuse ; lower 
lip 2-1} lin. long, saccate, obtuse ; upper stamens inserted about 
11 lin. above the base of the corolla-tube, much exserted ; about 
5 lin. long, flattened, ciliate along one margin on the basal half ; 
lower stamens inserted at the base of the lower. lip, equalling or 
exceeding the upper stamens, 24-3 lin. long, with their filaments 
united nearly to the apex, glabrous. 
- Katanart Rearon : Transvaal; Wonderboom Poort, near Pretoria, Rehinann, 
4507! Miss Leendertz, 553! Heidelberg, Miss Leendertz, 1027! near Botsabelo, 
Schlechter, 4070! Aapies Poort, Rehmann, 4114, and Elands River, Rehmann, 4891, 
ex Guerke ; Rustenburg, Collins, 30! 
29. O. serratus (Schlechter in Journ. Bot. 1897, 431, serratum) } 
stem herbaceous, thickly covered with spreading white hairs ; leaves 
in whorls of 3, recurved, 3-1} in. long, 5-7 lin. broad, oblanceolate 
or obovate, acute, tapering into a short petiole at the base, serrate, 
somewhat folded longitudinally, pubescent on both sides, pilose on 
the midrib and petiole ; whorls several in a simple raceme, 3-1] in. 
apart, about 9-flowered ; bracts 3-4 lin. long, 14-2 lin. broad, 
ovate, cuspidate-acuminate, nearly glabrous, purplish (1), persistent ; 
pedicels 14-2 lin. long, pubescent ; calyx-tube 2-3 lin. long, tubu- 
lar-campanulate, pubescent outside, reddish or purplish, much 
enlarged when in fruit; upper tooth 2 lin. long, 1} lin. broad, 
elliptic, obtuse, apiculate, recurved at the sides ; 4 lower teeth 3-1 
lin. long, bristle-like from a broad base ; corolla purple, pubescent 
outside ; tube } in. long, much exserted, subcylindric ; upper lip 
erect, 24-3 lin. long, 1}-1 lin. broad, oblong, shortly and unequally 
4-lobed ; lateral lobes somewhat triangular, obtuse ; terminal lobes 
suborbicular ; lower lip about 2 lin. long, 14 lin. broad, oblong or 
elliptic-oblong, obtuse, deeply concave, deflexed ; stamens much 
exserted, subequal ; filaments all free to the base, flattened ; upper 
pair } in. long, inserted towards the base of the corolla-tube, rather 
densely villous-pubescent on the lower half ; lower pair 24 lin. long, 
inserted at the base of the lower lip, glabrous ; stigma bifid, lobes 
1 lin. long, slender ; nutlets about 1} lin. long, oblong, glabrous. 
Katanart Recron: Transvaal; in stony places on the lower hill-slopes near 
Barberton, 2800 ft., Galpin, 499! near Mafutane, 1500 ft., Bolus, 12249! Eland- 
spruit Mountains, Schlechter, 3866! Potgieters Rust, Miss Leendertz, 1494! 
