Orthosiphon. | LABIAT (Brown). 247 
cuneately tapering to an acute subsessile or scarcely petiolate base, 
thinly pilose on both sides ; raceme with 5—7 whorls 3—# in. apart, 
6-flowered ; bracts on the lower part of the raceme very deciduous, not 
seen, upper persistent, thin and coloured, leaf-like, spreading, }—{ in. 
long, 1—1 in. broad, lanceolate, acute, cuneate at the subsessile base, 
minutely puberulous and ciliate, often without flowers in their axils ; 
pedicels 14-2 lin. long, pubescent ; calyx }-} (in fruit }) in. long, 
tubular-campanulate, pubescent ; upper tooth } in. long, broadly 
ovate, acute; lateral and lower teeth bristlelike, the lower } in. 
long ; corolla-tube not or scarcely exceeding the lower calyx- 
teeth, 2 in. long, compressed, truncate at the mouth, glabrous ; 
upper lip 3-lobed ; middle lobe 1; in. long, 1 lin. broad, subquadrate, 
subtruncate, slightly puberulous on the back ; lateral lobes much 
smaller ; lower lip 4 in. long, orbicular-boat-shaped, shortly stalked, 
very obtuse ; stamens exserted and extending nearly or quite to the 
tip of the lower lip, both pairs with free filaments, or the lower 
pair united for 4-1 of their length, sometimes both forms on the 
same stem; upper pair inserted at the middle of the corolla-tube, 
rather more than } in. long, their filaments rather densely ciliate 
nearly to the apex ; lower; pair inserted at the base of tke lower 
lip, 4 in, long, their filaments ciliate for half-way along one 
margin. 
Katauart Recion: Transvaal; near Barberton, Thorneroft, 3132! Saddleback 
Range, near ‘Barberton, Galpin, 465 (mingled with 0. Thorncroftii) | Nel Spruit, 
Rogers, 308 ! 
Dried specimens of this plant so closely resemble those of O. Thorncroftii and 
both have been collected by Galpin (465) as being one species, that in spite of the 
very obvious difference in the shorter corolla-tube and shorter stamens I am very 
doubtful if it be more than a sexual condition of that species, but this can only be 
decided by growing the plants from seed. As in the case of O. subvelutinus and 
O. montanus (which see) it is clear that the mere union or freedom of the lower 
pair of filaments is useless as a generic character since in a specimen of Galpin 
465 I find flowers with united and others with free filaments in the same 
raceme ! 
10. 0. Rogersii (N. E. Br.); stems probably several from the 
same rootstock, 5-8 in. high, sharply 4-angled, pilose, with 3-4 
pairs of leaves, having short flowerless branches in the axils of the 
upper 2-3 pairs ; leaves subsessile, 5-8 lin. long, 14-24 lin. broad, 
lanceolate or elliptic, acute or obtuse, green and thinly pilose on 
both sides or the upper surface with very few hairs ; glands very 
conspicuous ; inflorescence a simple raceme of 5-7 whorls 4-1 in. 
apart and. 3—6-flowered ; bracts 4-5 lin. long, 2-24 lin. broad, 
lanceolate to elliptic, subsessile, with the lower pair more or less 
leaf-like and persistent and the upper thinner, rosy-purple, persistent, 
those at the middle of the raceme more or less deciduous, both sides 
minutely puberulous and sometimes with a few longer hairs on the 
back ; pedicels 14-2 lin. long, pilose ; calyx-tube 2}—23 lin. long, 
tubular-campanulate, pilose outside ; upper tooth 1} lin. long, very 
broadly ovate, obtuse, sometimes apiculate ; lateral and lower teeth 
