Orthosiphon. | LABIATA (Brown). 241 
Stems 6-10 in. high, 4-2 lin. thick ; lower 
stamens about as long as the lower 
corolla-lip an sea nae ... (19) teucriifolius, 
var. B. 
Pubescence on the calyx chiefly a dense 
tomentum of minute branched hairs, 
with or without some long simple hairs ; 
lower stamens not or scarcely longer 
than the lower corolla-lip : 
Stems 6-10 in. high, 3-1 in. thick ; fila- 
ments of lower stamens united almost 
to the apex i ... (19) teucriifolius, 
Stems 7-27 in. high, 3-14 lin. thick ; fila- 
ments of lower stamens united for 4-2 
of their length ... ae, see --- (18) subvelutinus, 
1. 0. macrophyllus (N. E. Br.) ; stems 2 ft. or more high, stout, 
1j-2 lin. thick in the lower part, obtusely 4-angled, rather thinly 
subtomentose ; leaves of the main stems 13-24 in. long, 3-1 in. 
broad (bearing short leafy shoots in their axils), lanceolate, acute or 
subacute, cuneately tapering into a short petiole, shortly serrate in 
the upper 3, densely and very shortly white-tomentose on both sides, 
with the veins impressed above, prominent beneath, much reticulate ; 
leaves of the axillary shoots similar, but smaller and usually very . 
obtuse at the apex; panicle lax, 1-1} ft. long, with simple or 
branched lateral branches 3-10 in. long; whorls 3-1 in. apart, 
4—6-flowered ; bracts very caducous (only one pair at the summit of 
a branch seen), small, ovate, acuminate, deeply gibbous-concave, 
pubescent, white-woolly on the margins; pedicels } lin. long, 
pubescent ; calyx 5-toothed, pubescent outside, glabrous within, 
densely ciliate with white-woolly hairs on the teeth ; tube 2-2} lin. 
long, ovoid in fruit; upper tooth 1-1} lin. long, 1 lin. broad, 
broadly subquadrate-ovate, somewhat angular at the sides, abruptly 
and shortly mucronate ; lateral and lower teeth subequal, about 14 
lin, long, rather narrowly deltoid-subulate ; corolla about 3 times as 
long as the calyx, apparently dark red; tube 43-5 lin. long, very 
slightly curved just above the base, whence it becomes gradually 
dilated, compressed, glabrous outside, pubescent inside at the base 
and with a transverse band of hairs near the mouth on the upper 
side ; upper lip 3-4 lin. long, 3-lobed at the apex ; middle lobe 1 lin. 
long and nearly as broad, elliptic, obtuse, slightly recurved at the 
apex, minutely pubescent on the back ; lateral lobes small, rounded ; 
lower lip 33-43 lin. long, subcordate-ovate, obtuse, longitudinally 
folded, concave, ciliate with woolly hairs, minutely pubescent on the 
back ; stamens much exserted ; upper pair arising at the middle of 
the corolla-tube, 8-9 lin. long, their filaments free, flattened, ciliate 
on both margins at the base only ; lower pair arising at the base of 
the lower lip, 54-64 lin. long, their filaments united to the apex, 
glabrous ; style filiform, much exserted, glabrous; stigma very 
slightly thickened, unequally bifid; nutlets nearly 14 lin. long, 
oblong, compressed, light brown, shining. Syncolostemon macro- 
phyllus, Guerke in Bull. Herb. Boiss. vi. 555. 
VOL. V.—SECT. I. og 
